DOC No: WS2116-A0A-DTS-R04
Index
1. OVERVIEW ....................................................................................................................................... 3
1.1. GENERAL FEATURES ........................................................................................................................ 3
1.2. MODELS FUNCTIONAL BLOCKS .......................................................................................................... 3
2. FUNCTIONAL FEATURES .................................................................................................................. 4
2.1. MODULE BLOCK DIAGRAM ............................................................................................................... 4
2.2. BLOCK FUNCTIONAL FEATURE ........................................................................................................... 5
BlueNRG-2: Bluetooth low energy wireless SOC ........................................................................ 5
S2-LP: Sub-1Ghz transceiver ........................................................................................................ 5
SKY66420-11: Sub-1GHz RF Front-End Module .......................................................................... 6
STSAFE-A1SX: Secure Element ( WS2116-F0 only ) ..................................................................... 6
3. MODULE OUTLINE ........................................................................................................................... 7
3.1. SIGNAL LAYOUT (TOP VIEW) ............................................................................................................. 7
3.2. PIN DESCRIPTION ........................................................................................................................... 8
4. MODULE SPECIFICATIONS ............................................................................................................. 11
4.1. ABSOLUTE MAXIMUM RATINGS ...................................................................................................... 11
4.2. ESD RATINGS .............................................................................................................................. 11
4.3. RECOMMENDED OPERATING CONDITIONS ......................................................................................... 11
4.4. POWER CONSUMPTION SUMMARY .................................................................................................. 12
4.5. 2.4GHZ GFSK (BLUETOOTH LOW ENERGY) RF CHARACTERISTICS ......................................................... 13
4.6. SUB-1GHZ RF CHARACTERISTICS .................................................................................................... 13
4.7. INTERNAL 16-MHZ CRYSTAL OSCILLATOR ( FOR BLUENRG-2 ) ............................................................. 14
4.8. INTERNAL 32.768-KHZ CRYSTAL OSCILLATOR ( FOR BLUENRG-2 ) ........................................................ 14
4.9. INTERNAL 50MHZ CRYSTAL OSCILLATOR ( FOR S2-LP ) ....................................................................... 15
4.10. BLUENRG-2 DIGITAL I/O SPECIFICATIONS ....................................................................................... 15
4.11. S2-LP DIGITAL INTERFACE SPECIFICATION ........................................................................................ 16
4.12. SKY66420-11 ELECTRICAL SPECIFICATIONS: CONTROL LOGIC CHARACTERISTICS1 .................................. 16
4.13. SKY66420-11 ELECTRICAL SPECIFICATIONS: MODE CONTROL LOGIC .................................................. 16
4.14. SKY66420-11 GAIN VS. POUT .................................................................................................... 17
4.15. SKY66420-11 CURRENT VS. POUT .............................................................................................. 17
4.16. MORE CHARACTERISTICS.............................................................................................................. 17
5. DESIGN RECOMMENDATIONS ....................................................................................................... 18
5.1. GPIO USAGE OF BLUENRG-2 ........................................................................................................ 18
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5.2. DEBUG PORT ............................................................................................................................... 19
5.3. DEBUGGING TIPS.......................................................................................................................... 19
5.4. PRE-PROGRAMMED BOOTLOADER .................................................................................................... 19
5.5. TX/RX EVENT ALERT ..................................................................................................................... 20
5.6. STANDBY MODE OF SKY66420-11 ................................................................................................. 20
5.7. REFERENCE SCHEMATIC ................................................................................................................. 21
5.8. MODULE L AYOUT RECOMMENDATIONS ............................................................................................ 22
6. PACKAGE INFORMATION ............................................................................................................... 23
6.1. MODULE MECHANICAL OUTLINE ..................................................................................................... 23
6.2. PACKAGE MARKING ...................................................................................................................... 25
7. SMT AND BAKING RECOMMENDATION ....................................................................................... 26
7.1. BAKING RECOMMENDATION ........................................................................................................... 26
7.2. SMT RECOMMENDATION .............................................................................................................. 26
8. REGULATORY INFORMATION ........................................................................................................ 28
8.1. UNITED STATES ............................................................................................................................ 28
8.2. EUROPE ...................................................................................................................................... 30
8.3. JAPAN ........................................................................................................................................ 31
9. HISTORY CHANGE .......................................................................................................................... 32
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DOC No: WS2116-A0A-DTS-R04
1. OVERVIEW
The WS2116-A0 is a sub-1GHz with PA and Bluetooth® low energy ultralow power wireless MCU
module. This module is built-in STM S2-LP and BlueNRG-2 chip.
The module is a cost-effective, high performance, ultra-low power, sub-1GHz and Bluetooth® low
energy RF devices. Very low active RF and MCU current and low-power mode current consumption
provide excellent battery lifetime and allow for operation on small coin cell batteries and in
energy-harvesting applications.
The module is also designed for Sigfox Monarch application.
1.1. General Features
STM BlueNRG-2, S2-LP, sub-1GHz PA, 32MHz, 50MHz & 32.768KHz crystals, and DC2DC on a
single module.
Stamp-hole 54pins package.
Dimension 22mm(L) x 22mm(W) x 2.8mm(H)
High performance, ultra-low power Cortex-M0 32-bit Microcontroller
Programmable 256 KB Flash
24 KB RAM with retention (two 12 KB banks)
Up to +8dBm BLE RF output power, up to +27dBm sub-1GHz RF output power (1)
Excellent performance of receiver sensitivity. Up to -88dBm (BLE) and -130dBm (Sub-1GHz).
Low Power and Wide I/O Voltage Range: 1.8 to 3.6V(1)
- Internal DC-DC converter built-in
Operating temperature range: -40 °C to +85 °C
(1) In order to comply with Sigfox limits, the maximum RF output power and power voltage must be reduced.
See the chapter 4. MODULE SPECIFICATIONS for details.
1.2. Models Functional Blocks
Model
BLE & Sub-1GHz
Secure Element
WS2116-A0
V
-
WS2116-F0
V
V
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DOC No: WS2116-A0A-DTS-R04
2. FUNCTIONAL FEATURES
2.1. Module Block Diagram
DIO
pins
WS2116-A0
WS2116-F0
WS2116-F0 only
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2.2. Block Functional Feature
BlueNRG-2: Bluetooth low energy wireless SOC
Bluetooth low energy single mode system-on-chip compliant with Bluetooth 5.0
specifications:
- master, slave and multiple simultaneous roles
- LE data packet length extension
Integrated linear regulator and DC-DC step-down converter
High performance, ultra-low power Cortex-M0 32-bit based architecture core
Programmable 256 KB Flash
24 KB RAM with retention (two 12 KB banks)
1 x UART interface
1 x SPI interface
2 x I2C interface
26 GPIOs
2 x multifunction timer
10-bit ADC
Watchdog & RTC
DMA controller
PDM stream processor
32 MHz crystal oscillator built-in.
32 kHz crystal oscillator built-in.
Battery voltage monitor and temperature sensor
Up to +8 dBm available output power (at RF pin)
Excellent RF link budget (up to 96 dB)
Accurate RSSI to allow power control
S2-LP: Sub-1Ghz transceiver
Narrow band ultra-low power Sub-1GHz transceiver tuned for 860-943 MHz frequency
bands.
Suitable for Sigfox applications
Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK
Air data rate from 0.3 to 500 kbps
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Programmable RF output power up to +27 dBm ( with SKY66420-11 RF front-end chip)
Excellent performance of receiver sensitivity: down to -130 dBm
Programmable RX digital filter
Programmable channel spacing
Low duty cycle RX/TX operation mode
Integrated linear regulator and DC-DC step-down converter
SKY66420-11: Sub-1GHz RF Front-End Module
Integrated PA
Integrated LNA with programmable bypass
STSAFE-A1SX: Secure Element ( WS2116-F0 only )
Data integrity over the Sigfox network:
- Signature of payloads before uplink
- Signature of payloads before uplink
Optional data confidentiality over the Sigfox network:
- Encryption of payloads before uplink
- Decryption of downlink payloads
Advanced symmetric cryptography : AES-128
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3. MODULE OUTLINE
3.1. Signal Layout (Top View)
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3.2. Pin Description
Table 3-1. Pin Description
Pin
No.
Pin Name
Type
GND
Description
1
GND
GND
2
RESETN
Digital Input
3
DIO13
Digital Input
General purpose digital Input of BlueNRG-2
4
DIO12
Digital Input
General purpose digital Input of BlueNRG-2
5
TEST
Digital Input
Test pin put to GND
6
DIO11
Digital I/O
General purpose digital I/O of BlueNRG-2
7
DIO10
Digital I/O
General purpose digital I/O of BlueNRG-2
8
DIO9
Digital I/O
General purpose digital I/O of BlueNRG-2
System reset, active low. Built-in 100K ohm pull-up
resistor, and 0.01uF capacitor to GND.
General purpose digital I/O of BlueNRG-2 /
9
DIO25
Digital I/O
Connected internally to SDN pin of S2-LP
Built-in pull-up 100K ohm resistor.
10
DIO7
Digital I/O
11
DIO8
Digital I/O
12
DIO22
Digital I/O
13
DIO23
Digital I/O
14
GND
GND
15
VBAT
POWER
16
GND
GND
17
DIO24
Digital I/O
18
DIO21
Digital I/O
General purpose digital I/O of BlueNRG-2 /
Built-in pull-down 100K ohm resistor.
General purpose digital I/O of BlueNRG-2
General purpose digital I/O of BlueNRG-2 /
Connected internally to CTX pin of SKY66420-11
General purpose digital I/O of BlueNRG-2 /
Connected internally to CPS pin of SKY66420-11
GND
Power for BlueNRG-2
GND
General purpose digital I/O of BlueNRG-2 /
Connected internally to CSD pin of SKY66420-11
General purpose digital I/O of BlueNRG-2 /
Connected internally to GPIO3 pin of S2-LP
General purpose digital I/O of BlueNRG-2 /
19
DIO6
Digital I/O
Connected internally to RESET pin of STSAFE-A1SX
(-F0 only)
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General purpose digital I/O of BlueNRG-2
20
DIO4
Digital I/O
Connected internally to SCL pin of STSAFE-A1SX
(-F0 only)
General purpose digital I/O of BlueNRG-2
21
DIO5
Digital I/O
Connected internally to SDA pin of STSAFE-A1SX
(-F0 only)
General purpose digital I/O of BlueNRG-2 / SPI master
22
DIO20
Digital I/O
23
DIO19
Digital I/O
24
DIO18
Digital I/O
General purpose digital I/O of BlueNRG-2
25
DIO16
Digital I/O
General purpose digital I/O of BlueNRG-2
26
DIO0
Digital I/O
27
DIO17
Digital I/O
General purpose digital I/O of BlueNRG-2
28
DIO1
Digital I/O
General purpose digital I/O of BlueNRG-2
29
DIO2
Digital I/O
30
DIO3
Digital I/O
31
GND
GND
32
GPIO3
33
GND
34
VCC_S2LP
35
GND
36
GPIO2
Digital I/O
37
GPIO1
Digital I/O
General purpose I/O of S2-LP.
38
GPIO0
Digital I/O
General purpose I/O of S2-LP.
39
DIO15
Digital I/O
General purpose digital I/O of BlueNRG-2
40
DIO14
Digital I/O
General purpose digital I/O of BlueNRG-2
41
ANATEST1
Analog Output
Analog output of BlueNRG-2
42
ANATEST0
Analog Output
Analog output of BlueNRG-2
43
GND
Digital I/O
GND
POWER
GND
GND
CS pin connected internally to CS pin of S2-LP
General purpose digital I/O of BlueNRG-2 /
Connected internally to GPIO2 pin of S2-LP
General purpose digital I/O of BlueNRG-2 / SPI master
CLK pin connected internally to SCLK pin of S2-LP
General purpose digital I/O of BlueNRG-2 / SPI master
output pin connected internally to SDI pin of S2-LP
General purpose digital I/O of BlueNRG-2 / SPI master
input pin connected internally to SDO pin of S2-LP
GND
General purpose I/O of S2-LP. Connected internally to
DIO21 pin of BlueNRG-2.
GND
Power for S2-LP
GND
General purpose I/O of S2-LP. Connected internally to
DIO19 pin of BlueNRG-2.
GND
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44
ADC1
Analog Input
ADC input1 of BlueNRG-2
45
ADC2
Analog Input
ADC input1 of BlueNRG-2
46
VCC_PA1
POWER
Power for SKY66420-11
47
VCC_PA2
POWER
Power for SKY66420-11
48
GND
GND
GND
49
GND
GND
GND
50
SUB-1G RF
51
GND
GND
GND
52
GND
GND
GND
53
BLE RF
54
GND
RF I/O
RF I/O
GND
Sub-1GHz antenna port
2.4 GHz BLE antenna port
GND
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4. MODULE SPECIFICATIONS
4.1. Absolute Maximum Ratings
Over operating free-air temperature range (unless otherwise noted)
Pin
Parameter
MIN
MAX
Unit
15, 34
Power for BlueNRG-2 and S2-LP
-0.3
+3.6
V
46, 47
Power for SKY66420-11
-0.3
+5.5
V
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17,
DC voltage on digital input/output
-0.3
+3.9
V
18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
pins
-0.3
+3.9
V
28, 29, 30, 32, 36, 37, 38, 39, 40
41, 42, 44, 45
DC voltage on analog pins
50
Input RF level
+10
dBm
53
Input RF level
+5
dBm
+85
°C
Storage temperature range
-40
4.2. ESD Ratings
Parameter
Value
Unit
Electrostatic
VESD+HBM
BlueNRG-2 pins
±2000
V
discharge
VESD+HBM
S2-LP pins
±500
V
performance
VESD+HBM
RF pins
±500
V
MIN
MAX
Unit
-40
85
°C
4.3. Recommended Operating Conditions
Parameter
Conditions
Ambient temperature range
(1)
VBAT(1)
For BlueNRG-2
+1.7
+3.6
V
VCC_S2LP(1)
For S2-LP
+1.8
+3.6
V
VCC_PA1, VCC_PA2(1)
For SKY66420-11
+2.0
+4.8
V
The VBAT, VCC_S2LP, VCC_PA1, VCC_PA2 are limited from min 2.2V to max 3.6V in Sigfox application
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4.4. Power Consumption Summary
Ta = 25°C, VBAT=3.3 V, VCC_S2LP=3.3 V, VCC_PA = 3.3 V with internal DC-DC converter, unless otherwise noted.
Test Conditions
Parameter
Reset
Min
Typ
Max
Units
5
nA
Standby
500
nA
Sleep mode: 32 kHz XO ON (24 KB retention RAM)
0.9
μA
Sleep mode: 32 kHZ RO ON (24 KB retention RAM)
2.1
μA
Active mode: CPU, Flash and RAM on
1.9
mA
RX
8.8
mA
BlueNRG-2
BLE TX +7 dBm
15.1
mA
Supply current
BLE TX +2 dBm
11.2
mA
BLE TX +0 dBm
9.4
mA
BLE TX -5 dBm
8.7
mA
BLE TX -8 dBm
8.2
mA
BLE TX -10 dBm
7.7
mA
BLE TX -14 dBm
7.5
mA
BLE TX -17 dBm
7.3
mA
IBAT
Peripheral Current Consumption (Adds to core current for each peripheral unit activated)
BlueNRG-2
Peripheral
current
GPIO
11.0
μA
Flash controller
6.0
μA
System controller
0.75
μA
UART
77.0
μA
SPI
41.0
μA
Watchdog
4.0
μA
ADC
5.0
μA
I2C1/I2C2
92.0
μA
MFT1
7.5
μA
MFT2
7.5
μA
RTC
7.5
μA
DMA
16.5
μA
RNG
25.0
μA
PKA
26.0
μA
5
nA
30.5
μA
IVCC_
Shutdown
S2LP
Standby
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Sleep
5
nA
30.95
nA
S2_LP
Sleep (FIFOs retained)
Supply current
Ready
400
μA
RX @ sensitivity level
8.5
mA
TX CW @ 14 dBm(in boost mode)
25
mA
TX CW @ 10 dBm(in boost mode)
16
mA
Sleep Current
1
μA
IVCC_
SKY66420-11
Transmit bypass mode
200
μA
PA
Supply current
TX CW @ 27 dBm
280
mA
5
mA
RX
4.5. 2.4GHz GFSK (Bluetooth Low Energy) RF Characteristics
RF performance is specified in a single ended 50 ohm reference plane at the RF connector with Ta = 25°C, VBAT = 3.3 V,
fRF = 2440 MHz, unless otherwise noted. Please see the more detail data in the STM’s BlueNRG-2 datasheet.
Test Conditions
Min
Typ
Max
Units
Frequency range
2400
-
2483.5
MHz
Channel spacing
-
2
-
MHz
2480
MHz
Parameter
Channel center frequency
2402
Receiver sensitivity
BER = 10–3
-86
dBm
Receiver saturation
BER = 10–3
11
dBm
Maximum Output Power
At RF connector
+7
dBm
Minimum Output Power
At RF connector
-17
dBm
4.6. Sub-1GHz RF Characteristics
RF performance is specified in a single ended 50 ohm reference plane at the RF connector with Ta = 25°C, VCC_S2LP =
3.3 V, VCC_PA=3.3V, unless otherwise noted. Please see the more detail data in the STM’s S2_LP and Skyworks’s
SKY66420-11 datasheet.
Min
Typ
Max
Units
Frequency range
860
-
930
MHz
Data rate – 2-(G)FSK
0.3
-
250
kbps
Data rate – 4-(G)FSK
0.6
-
500
kbps
Data rate – OOK/ASK
0.3
-
125
kbps
Frequency deviation FDEV
0.15
-
500
kHz
Parameter
Test Conditions
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Sensitivity @ 920MHz,
DR = 0.3 kbps, FDEV = 0.25 kHz, CHF = 1 kHz
-128
dBm
Low Gain Mode,
DR = 1.2 kbps, FDEV = 1.2 kHz, CHF = 4 kHz
-122
dBm
1% BER @ 2-GFSK BT = 0.5
DR = 38.4 kbps, FDEV = 20 kHz, CHF = 100 kHz
-109
dBm
DR = 100 kbps, FDEV = 50 kHz, CHF = 200 kHz
-105
dBm
Sensitivity @ 920MHz,
DR = 4.8 kbps, DEV = 2.4 kHz, CHF = 10 kHz
-114
dBm
Low Gain Mode,
DR = 9.6 kbps, DEV = 4.8 kHz, CHF = 20 kHz
-112
dBm
1% BER @ 4-GFSK BT = 0.5
DR = 19.2 kbps, DEV = 9.6 kHz, CHF = 40 kHz
-108
dBm
At RF pin (PA enable)
+27
At RF pin (PA bypass)
+14
Maximum Output Power(1)
Minimum Output Power
At RF pin
dBm
0
dBm
(1) In order to comply with Sigfox limits, the maximum RF output power must be as below.
RC1
RC2
RC3
RC4
RC5
RC6
12.8dBm
22.4dBm
12.4dBm
21.7dBm
12.0dBm
12.7dBm
4.7. Internal 16-MHz Crystal Oscillator ( for BlueNRG-2 )
over operating free-air temperature range (unless otherwise noted)
Test Conditions
Parameter
Min
Typ
Crystal frequency
Crystal frequency tolerance
Max
32
(1)
-40
Units
MHz
+40
ppm
Max
Units
(1) Includes initial tolerance of the crystal, drift over temperature, aging ( 5 years ).
4.8. Internal 32.768-kHz Crystal Oscillator ( for BlueNRG-2 )
over operating free-air temperature range (unless otherwise noted)
Parameter
Test Conditions
Min
Crystal frequency
Crystal frequency tolerance(1)
(1)
Typ
32.768
-40
KHz
40
ppm
Includes initial tolerance of the crystal, drift over temperature, aging ( 5 years ).
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4.9. Internal 50MHz Crystal Oscillator ( for S2-LP )
over operating free-air temperature range (unless otherwise noted)
Test Conditions
Parameter
Min
Crystal frequency
Crystal frequency tolerance
Typ
Max
Units
50
(1)
Crystal frequency tolerance(2)
MHz
Without initial frequency calibration
-40
40
ppm
Initial frequency is calibrated by software
-20
20
ppm
(1)
Includes initial tolerance of the crystal, drift over temperature, aging ( 5 years ).
(2)
Includes only drift over temperature, aging ( 5 years ).
4.10. BlueNRG-2 Digital I/O specifications
Ta = 25°C
Test Conditions
Parameter
Min
Typ
Max
Units
Trise
0.1*VDD to 0.9*VDD, CL=50pF
1.4(TC)
-
19(TC2)
ns
Tfall
0.9*VDD to 0.1*VDD, CL=50pF
1.5(TC)
-
22(TC2)
ns
T(RST)L
-
1.5
-
ms
TC
3
3.3
3.6
V
TC1
2.25
2.5
2.75
V
TC2
1.72
1.8
1.98
V
TC
-0.3
-
0.9
V
TC1
-0.3
-
0.67
V
TC2
-0.3
-
0.54
V
TC
1.95
-
3.6
V
TC1
1.46
-
2.75
V
TC2
1.1
-
1.98
V
TC
-
-
0.4
V
TC1
-
-
0.42
V
TC2
-
-
0.45
V
TC
2.4
-
-
V
TC1
1.72
-
-
V
TC2
1.35
-
-
V
IOL
TC (VOL = 0.4V)
3.4
5.6
7.9
mA
(Low drive strength)
TC1 (VOL= 0.42V)
3.8
6.6
10.1
mA
TC2 (VOL =0.45V)
1.6
3
5
mA
VIL
VIH
VOL
VOH
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IOL
TC (VOL = 0.4V)
6.8
11.2
15.8
mA
(High drive strength)
TC1 (VOL= 0.42V)
7.6
13.2
20.1
mA
TC2 (VOL =0.45V)
3.3
6
9.9
mA
IOH
TC (VOH = 2.4V)
5.5
10.6
17.6
mA
(Low drive strength)
TC1 (VOH= 1.72V)
3.7
7.2
12
mA
TC2 (VOH =1.35V)
1.4
3
5.6
mA
IOH
TC (VOH = 2.4V)
9.9
19.2
31.7
mA
(High drive strength)
TC1 (VOH= 1.72V)
6.7
12.9
21.6
mA
TC2 (VOH =1.35V)
2.4
5.5
10.1
mA
4.11. S2-LP Digital interface specification
Parameter
Test Conditions
Min
Typ
Max
Units
8
10
MHz
SPI clock frequency
VIH
VCC_S2LP/2+0.3
-
-
V
VIL
-
-
VCC_S2LP/8 +0.3
V
-
-
V
0.5
V
VOH
IOH = -2.4 mA (-4.2 mA into high
output current mode).
VOL
0.625*VCC_S2LP+0.1
IOL = +2.0 mA (+4.0 mA into high
output current mode).
4.12. SKY66420-11 Electrical Specifications: Control Logic Characteristics1
Test Conditions
Parameter
Control Voltage High
RXEN, TXEN, and MODE Pins
Control Voltage Low
RXEN, TXEN, and MODE Pins
1
Performance is guaranteed only under the conditions listed in this table.
2
Logic inputs must be VCC_PA or GND to achieve specified sleep currents.
Min
Typ
Max
Units
1.62
-
VCC_PA
V
0.32
V
4.13. SKY66420-11 Electrical Specifications: Mode Control Logic
1
Mode
CSD
CTX
CPS
Shutdown
0
X1
X1
Receive LNA mode
1
0
X1
Transmit bypass
1
1
0
Transmit
1
1
1
X (don’t care) inputs must be held at VCC_PA or GND to achieve specified sleep current.
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DOC No: WS2116-A0A-DTS-R04
4.14. SKY66420-11 Gain vs. Pout
Tc = 25°C, VCC_PA = 3.3 V
4.15. SKY66420-11 Current vs. Pout
Tc = 25°C, VCC_PA = 3.3 V
4.16. More Characteristics
If you need more detail characteristics, please visit STM and Skyworks web site.
BlueNRG-2
https://www.st.com/content/st_com/en/products/wireless-transceivers-mcus-and-modules/bluetooth-b
luetooth-low-energy/bluenrg-2.html
S2-LP:
http://www.st.com/content/st_com/en/products/wireless-connectivity/sub-1ghz-rf/s2-lp.html
SKY66420-11
http://www.skyworksinc.com/Product/4124/SKY66420-11
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DOC No: WS2116-A0A-DTS-R04
5. DESIGN RECOMMENDATIONS
5.1. GPIO Usage of BlueNRG-2
Because the function of some pins has been used in the module internally. The other functions of
these pins could not be defined. Please refer the below table.
Mode “000”
Pin
Mode “001”
Mode “100”
Type
Signal
Type
Signal
Type
DIO0
I/O
GPIO 0
I
UART_CTS
I/O
DIO1
I/O
GPIO 1
O
UART_RTS
DIO2
I/O
GPIO 2
O
DIO3
I/O
GPIO 3
DIO4
I/O
DIO5
Note
Type
Signal
SPI_CLK
O
CPUCLK
I/O
SPI_CS1
I
PDM_DATA
PWM0
O
SPI_OUT
O
PDM_CLK
To SDI pin of S2-LP
O
PWM1
I
SPI_IN
-
-
To SDO pin of S2-LP
GPIO 4
I
UART_RXD
I/O
I2C2_CLK
O
PWM0
To SCL pin of STSAFE-A1SX(1)
I/O
GPIO 5
O
UART_TXD
I/O
I2C2_DAT
O
PWM1
To SDA pin of STSAFE-A1SX(1)
DIO6
I/O
GPIO 6
O
UART_RTS
I/O
I2C2_CLK
I
PDM_DATA
To reset pin of STSAFE-A1SX(1)
DIO7
I/O
GPIO 7
I
UART_CTS
I/O
I2C2_DAT
O
PDM_CLK
DIO8
I/O
GPIO 8
O
UART_TXD
I/O
SPI_CLK
I
PDM_DATA
DIO9
I/O
GPIO 9
I
SWCLK
I
SPI_IN
O
XO16/32M
DIO10
I/O
GPIO 10
I
SWDIO
O
SPI_OUT
O
CLK_32K
DIO11
I/O
GPIO 11
I
UART_RXD
I/O
SPI_CS1
O
CLK_32K
DIO12
OD
GPIO 12
I
-
I/O
I2C1_CLK
-
-
DIO13
OD
GPIO 13
I
UART_CTS
I/O
I2C1_DAT
-
-
DIO14
I/O
GPIO 14
I/O
I2C1_CLK
I/O
SPI_CLK
-
-
DIO15
I/O
GPIO 15
I/O
2C1_DAT
I/O
SPI_CS1
DIO16
I/O
GPIO 16
O
PWM0
I
SPI_IN
DIO17
I/O
GPIO 17
O
PWM1
O
SPI_OUT
DIO18
I/O
GPIO 18
O
SPI_CS2
O
UART_RTS
DIO19
I/O
GPIO 19
O
SPI_CS3
I
UART_CTS
To GPIO2 of S2-LP
DIO20
I/O
GPIO 20
I
UART_CTS
O
SPI_CS2
To CS pin of S2-LP
DIO21
I/O
GPIO 21
O
PWM1
I/O
SPI_CS1
To GPIO3 of S2-LP
DIO22
I/O
GPIO 22
O
PWM0
O
SPI_CS3
To CTX pin of SKY66420-11
DIO23
I/O
GPIO 23
O
UART_TXD
O
SPI_OUT
O
PDM_CLK
To CPS pin of SKY66420-11
DIO24
I/O
GPIO 24
I
UART_RXD
I
SPI_IN
I
PDM_DATA
To CSD pin of SKY66420-11
DIO25
I/O
GPIO 25
O
UART_RTS
I/O
SPI_CLK
O
PDM_CLK
Name
(1)
Signal
Mode “101”
To SCLK pin of S2-LP
To SDN pin of S2-LP
Only limitation for WS2116-F0
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DOC No: WS2116-A0A-DTS-R04
(2)
All the IOs are in high impedance under reset. In low power modes (sleep and standby) the I/Os are configured as follows:
-DIO0 to DIO8 and DIO14 to DIO25 are in high impedance state.
-DIO9, DIO10, DIO11 are in input state with configurable internal pull by using the SLEEPIO_PE register. Please see the BlueNRG-2 datasheet for
details register information.
-DIO12, DIO13 are in input state no pull. If DIO12 or DIO13 are not used, they must be put at GND through pull-down resistor.
5.2. Debug Port
The BlueNRG-2 embeds the ARM serial wire debug (SWD) port. It is two pins (clock and single
bi-directional data) debug interface, providing all the debug functionality plus real-time access to
system memory without halting the processor or requiring any target resident code.
Pin functionality
Pin Name
Pin description
SWCLK
DIO9
SWD clock signal
SWDIO
DIO10
SWD data signal
The Cortex-M0 subsystem of the BlueNRG-1 embeds two breakpoints and one watch point.
5.3. Debugging Tips
There are certain situations where debug access is disabled and the chip cannot be accessed,
including:
application that disables debug pins
application that set the device in sleep or standby state, in which the debug port is not
powered.
These cases are common during application development and device can end up in a state where
debug access is no longer possible. To recover this situation, it is recommended to force DIO7 pin
high and hardware reset the device in order to force execution of the updater code. The user can
then connect with SWD interface and erase the device Flash memory.
5.4. Pre-programmed bootloader
BlueNRG-2 device has a pre-programmed bootloader supporting UART protocol with automatic
baudrate detection. Main features of the embedded bootloader are:
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DOC No: WS2116-A0A-DTS-R04
Auto baudrate detection up to 460 kbps
Flash mass erase, section erase
Flash programming
Flash readout protection enable/disable
The pre-programmed bootloader is an application which is stored on the BlueNRG-1 internal ROM
at manufacturing time by STMicroelectronics. This application allows upgrading the device Flash
with a user application using a serial communication channel (UART).
Bootloader is activated by hardware by forcing IO7 high during power-up or hardware Reset,
otherwise, application residing in Flash will be launched.
The customer application must ensure that IO7 is forced low during power up. There is a built-in
100K pull-down resistor in IO7. Bootloader protocol is described in a separate application note.
5.5. TX/RX event alert
The BlueNRG-2 is provided with the ANATEST1 (pin 41 in the module) signal which alerts
forthcoming transmission or reception event. The ANATEST1 pin switches to high level about 18 μs
before transmission and about 10 us before reception. Then, it switches to low level at the end of
the event. The signal can be used for controlling external antenna switching and supporting
coexistence with other wireless technologies.
5.6. Standby mode of SKY66420-11
The DIO22, DIO23, DIO24 of BlueNRG-2 are in high impedance state under standby mode. The three
DIO pins must be pull-down 100K ohm resistors to GND in order to avoid unstable state issue for
mode setting of SKY66420-11 in the standby mode of the module.
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DOC No: WS2116-A0A-DTS-R04
5.7. Reference Schematic
BLE_RF
R1
100K
RES0402
DIO7
DIO8
DIO22
DIO23
R3
R4
100K
RES0402
100K
RES0402
100K
RES0402
49
51
GND
50
52
GND
GND
GND
VCC_PA2
VCC_PA1
ADC2
ADC1
GND
TEST0
TEST1
DIO14
DIO15
GPIO0
GPIO1
GPIO2
GND
VCC_S2LP
GND
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
ADC2
ADC1
TEST0
TEST1
DIO14
DIO15
VBLUE
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
R2
WS2116-A0
VBLUE
DIO24
DIO21
DIO6
DIO4
DIO5
DIO20
DIO19
DIO18
DIO16
DIO0
DIO17
DIO1
DIO2
DIO3
GND
GPIO3
VBLUE
GND
RESETN
DIO13
DIO12
TEST
DIO11
DIO10
DIO9
DIO25
DIO7
DIO8
DIO22
DIO23
GND
VBAT
GND
SUB-1G_RF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
RESETN
DIO13
DIO12
TEST
DIO11
JTMS-SWTDIO
JTCK-SWTCK
UART_RX
UART_TX
BLE_RF
UART Interface
53
54
GND
U1
SUB-1G_RF
SPI Interface
DIO24
Pull-down for Sub-1GHz
PA mode setting
DIO6
SPI_MI
SPI_MO
DIO1
DIO17
SPI_MASTER_CLK
DIO16
DIO4
DIO5
I2C_SCL
I2C_SDA
I2C Interface
SPI_MI
SPI_MO
SPI_CLK
DIO18
VBLUE
SWD CONNECTOR
J1
1
3
5
J T M S - S W T D I7 O
9
J T C K - S W T C K
11
13
15
R E S E T N
17
19
2
4
6
8
10
12
14
16
18
20
BLE
ANT1
2.4GHz ANT
BLE_RF
R5
0R
RES0402
C1
C
CAP0402
C2
C
CAP0402
HEADER 10X2
--
--
SUB-1G Option 1: two antennas design
one antenna for 868MHz band
one antenna for 902 ~ 924MHz band
868MHz/915MHz control
VC1
VC2
0
1
RFC to RF2
1
0
RFC to RF1
C5
33pF
CAP0402
DIO17
R6
0R
RES0402
DIO18
R8
U2
6
C7
100pF
CAP0402
SUB-1G_RF
C6
100pF
CAP0402
0R
RES0402
5
4
For 868MHz
C3
C
CAP0402
R7
VC1
RF1
RFC
GND
VC2
RF2
SKY 13323-378LF
ANT2
868MHz ANT
0R
RES0402
1
2
3
ANT3
9XXMHz ANT
R9
C9
33pF
CAP0402
C4
C
CAP0402
C8
100pF
CAP0402
0R
RES0402
C10
C
CAP0402
C11
C
CAP0402
For 9XXMHz
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DOC No: WS2116-A0A-DTS-R04
SUB-1G Option 2: one antennas design
one 868MHz band ~ 924MHz band
ANT4
868~924MHz ANT
SUB-1G_RF
R10
0R
RES0402
C12
C
CAP0402
C13
C
CAP0402
5.8. Module Layout Recommendations
Power Trace – Power trace for VCC_PA should be 25mil wide. VBAT and VCC_S2LP traces
should be 15mil wide, at least.
RF Trace & Antenna
Keep 50ohm trace impedance.
Move all the high-speed traces and components far away from the antenna.
Check antenna vendor for the layout guideline and clearance.
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DOC No: WS2116-A0A-DTS-R04
6. PACKAGE INFORMATION
6.1. Module Mechanical Outline
A
Top View
Side View
Note:
A: Typical: 2.8mm, Maximum: 3.0mm
Unit: mm
Tolerance: +/- 0.2mm
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DOC No: WS2116-A0A-DTS-R04
Bottom View
Note:
1> Pad tolerance as +/-30um
2> Recommend pad layout size on PCB at least 0.9 mm,
3> Unit: mm
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DOC No: WS2116-A0A-DTS-R04
6.2. Package Marking
Marking
Description
Brand name: JORJIN
WS2116-A0 or
WS2116-F0
Model name
YYWWSSFX
Lot Trace Code: YYWWSSFX
YY= Digit of the year, ex: 2017=17
WW= Week (01~52)
SS= Serial number from 01~98 match to MFG’s lot number, or 99
to repair control code
F= Reverse for internal use
X = A to Z for Module version
WS2-WS2116A0
FCC ID
CE compliance mark
JRF compliance mark, and ID
Sigfox P1 certified logo
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DOC No: WS2116-A0A-DTS-R04
7. SMT AND BAKING RECOMMENDATION
7.1. Baking Recommendation
Baking condition：
-
Follow MSL Level 4 to do baking process.
After bag is opened, devices that will be subjected to reflow solder or other high
temperature process must be
a) Mounted within 72 hours of factory conditions
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