www.ti.com
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES025E – JULY 1995 – REVISED OCTOBER 2004
FEATURES
•
•
•
•
•
•
Member of the Texas Instruments Widebus™
Family
EPIC™ (Enhanced-Performance Implanted
CMOS) Submicron Process
Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Latch-Up Performance Exceeds 250 mA Per
JESD 17
Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) and Thin Shrink
Small-Outline (DGG) Packages
DESCRIPTION
This 16-bit registered transceiver is designed for
1.65-V to 3.6-V VCC operation.
The SN74ALVCH16543 can be used as two 8-bit
transceivers or one 16-bit transceiver. Separate
latch-enable (LEAB or LEBA) and output-enable
(OEAB or OEBA) inputs are provided for each
register to permit independent control in either
direction of data flow.
The A-to-B enable (CEAB) input must be low to enter
data from A or to output data from B. If CEAB is low
and LEAB is low, the A-to-B latches are transparent;
a subsequent low-to-high transition of LEAB puts the
A latches in the storage mode. With CEAB and OEAB
both low, the 3-state B outputs are active and reflect
the data present at the output of the A latches. Data
flow from B to A is similar, but requires using CEBA,
LEBA, and OEBA.
DGG OR DL PACKAGE
(TOP VIEW)
1OEAB
1LEAB
1CEAB
GND
1A1
1A2
VCC
1A3
1A4
1A5
GND
1A6
1A7
1A8
2A1
2A2
2A3
GND
2A4
2A5
2A6
VCC
2A7
2A8
GND
2CEAB
2LEAB
2OEAB
1
56
2
55
3
54
4
53
5
52
6
51
7
50
8
49
9
48
10
47
11
46
12
45
13
44
14
43
15
42
16
41
17
40
18
39
19
38
20
37
21
36
22
35
23
34
24
33
25
32
26
31
27
30
28
29
1OEBA
1LEBA
1CEBA
GND
1B1
1B2
VCC
1B3
1B4
1B5
GND
1B6
1B7
1B8
2B1
2B2
2B3
GND
2B4
2B5
2B6
VCC
2B7
2B8
GND
2CEBA
2LEBA
2OEBA
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN74ALVCH16543 is characterized for operation from -40°C to 85°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus, EPIC are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1995–2004, Texas Instruments Incorporated
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES025E – JULY 1995 – REVISED OCTOBER 2004
LOGIC SYMBOL (1)
1OEBA
1CEBA
1LEBA
1OEAB
1CEAB
1LEAB
2OEBA
2CEBA
2LEBA
2OEAB
2CEAB
56
54
55
1
3
2
29
31
30
28
26
27
2LEAB
1A1
1EN3
G1
1C5
2EN4
G2
2C6
7EN9
G7
7C11
8EN10
G8
8C12
5
3
6D
1A2
1A3
1A4
1A5
1A6
1A7
1A8
2A1
6
2A3
2A4
2A5
2A6
2A7
2A8
4
52
51
8
49
9
48
10
47
12
45
13
44
14
43
15
9
12D
2A2
5D
16
11D
10
42
41
17
40
19
38
20
37
21
36
23
34
24
33
1B1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
2B1
2B2
2B3
2B4
2B5
2B6
2B7
2B8
(1) This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
2
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES025E – JULY 1995 – REVISED OCTOBER 2004
LOGIC DIAGRAM (POSITIVE LOGIC)
1OEBA
1CEBA
1LEBA
1OEAB
1CEAB
1LEAB
1A1
56
54
55
1
3
2
C1
5
1D
52
1B1
C1
1D
To Seven Other Channels
2OEBA
2CEBA
2LEBA
2OEAB
2CEAB
2LEAB
2A1
29
31
30
28
26
27
C1
15
1D
42
2B1
C1
1D
To Seven Other Channels
3
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES025E – JULY 1995 – REVISED OCTOBER 2004
FUNCTION TABLE (1)
(each 8-bit section)
INPUTS
(1)
(2)
OEAB
A
OUTPUT
B
X
X
X
Z
X
H
X
Z
L
H
L
X
B0 (2)
L
L
L
L
L
L
L
L
H
H
CEAB
LEAB
H
X
A-to-B data flow is shown; B-to-A flow control is the same, except
that it uses CEBA, LEBA, and OEBA.
Output level before the indicated steady-state input conditions were
established
ABSOLUTE MAXIMUM RATINGS (1)
over operating free-air temperature range (unless otherwise noted)
VCC
Supply voltage range
MIN
MAX
-0.5
4.6
Except I/O ports (2)
-0.5
4.6
I/O ports (2) (3)
-0.5
VCC + 0.5
-0.5
VCC + 0.5
VI
Input voltage range
VO
Output voltage range (2) (3)
IIK
Input clamp current
VI < 0
IOK
Output clamp current
VO < 0
IO
Continuous output current
Continuous current through each VCC or GND
θJA
Package thermal impedance (4)
Tstg
Storage temperature range
(1)
(2)
(3)
(4)
4
V
V
V
-50
mA
-50
mA
±50
mA
±100
mA
DGG package
81
DL package
74
-65
UNIT
150
°C/W
°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
This value is limited to 4.6 V maximum.
The package thermal impedance is calculated in accordance with JESD 51.
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES025E – JULY 1995 – REVISED OCTOBER 2004
RECOMMENDED OPERATING CONDITIONS (1)
VCC
Supply voltage
VCC = 1.65 V to 1.95 V
VIH
High-level input voltage
MIN
MAX
1.65
3.6
UNIT
V
0.65 × VCC
VCC = 2.3 V to 2.7 V
1.7
VCC = 2.7 V to 3.6 V
2
V
0.35 × VCC
VCC = 1.65 V to 1.95 V
VIL
Low-level input voltage
VCC = 2.3 V to 2.7 V
0.7
VI
Input voltage
0
VCC
V
VO
Output voltage
0
VCC
V
VCC = 2.7 V to 3.6 V
IOH
High-level output current
IOL
Low-level output current
∆t/∆v
Input transition rise or fall rate
TA
Operating free-air temperature
(1)
V
0.8
VCC = 1.65 V
-4
VCC = 2.3 V
-12
VCC = 2.7 V
-12
VCC = 3 V
-24
VCC = 1.65 V
4
VCC = 2.3 V
12
VCC = 2.7 V
12
VCC = 3 V
24
-40
mA
mA
10
ns/V
85
°C
All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
5
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES025E – JULY 1995 – REVISED OCTOBER 2004
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
IOH = -100 µA
1.65 V to 3.6 V
1.65 V
IOH = -6 mA
2.3 V
2
2.3 V
1.7
2.7 V
2.2
3V
2.4
IOH = -24 mA
3V
2
IOL = 100 µA
IOH = -12 mA
II(hold)
V
1.65 V to 3.6 V
0.2
1.65 V
0.45
IOL = 6 mA
2.3 V
0.4
2.3 V
0.7
IOL = 24 mA
2.7 V
0.4
3V
0.55
±5
VI = VCC or GND
3.6 V
VI = 0.58 V
1.65 V
25
VI = 1.07 V
1.65 V
-25
VI = 0.7 V
2.3 V
45
VI = 1.7 V
2.3 V
-45
VI = 0.8 V
3V
75
3V
-75
VI = 2 V
VI = 0 to 3.6
VO = VCC or GND
ICC
VI = VCC or GND,
IO = 0
∆ICC
One input at VCC - 0.6 V,
Other inputs at VCC or GND
V
µA
µA
3.6 V
±500
3.6 V
±10
µA
3.6 V
40
µA
3 V to 3.6 V
750
µA
V (2)
IOZ (3)
UNIT
1.2
IOL = 4 mA
IOL = 12 mA
II
MAX
VCC - 0.2
IOH = -4 mA
VOH
VOL
MIN TYP (1)
VCC
Ci
Control inputs
VI = VCC or GND
3.3 V
3.5
pF
Cio
A or B ports
VO = VCC or GND
3.3 V
8.5
pF
(1)
(2)
(3)
All typical values are at VCC = 3.3 V, TA = 25°C.
This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to
another.
For I/O ports, the parameter IOZ includes the input leakage current.
TIMING REQUIREMENTS
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1 through Figure 3)
VCC = 1.8 V
MIN
MAX
VCC = 2.5 V
± 0.2 V
MIN
MAX
VCC = 2.7 V
MIN
MAX
VCC = 3.3 V
± 0.3 V
MIN
UNIT
MAX
tw
Pulse duration, LE or CE low
(1)
3.3
3.3
3.3
ns
tsu
Setup time
Data before LE↑ or CE↑
(1)
1.2
1.5
1.2
ns
th
Hold time
Data after LE↑ or CE↑
(1)
1.2
0.8
1.3
ns
(1)
6
This information was not available at the time of publication.
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES025E – JULY 1995 – REVISED OCTOBER 2004
SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1 through Figure 3)
FROM
(INPUT)
TO
(OUTPUT)
VCC = 1.8 V
A or B
B or A
LE
ten
PARAMETER
MIN
MAX
(1)
1
5.1
A or B
(1)
1
6.5
CE
A or B
(1)
1
7.2
tdis
CE
A or B
(1)
1.3
6.1
ten
OE
A or B
(1)
1
A or B
(1)
1
tpd
tdis
(1)
OE
TYP
VCC = 2.5 V
± 0.2 V
VCC = 2.7 V
MIN
MAX
VCC = 3.3 V
± 0.3 V
UNIT
MIN
MAX
4.8
1
4.3
6.2
1.1
5
6.9
1
5.6
ns
6.2
1.5
5.1
ns
6.8
6.3
1
5.3
ns
5.7
4.8
1.1
4.6
ns
ns
This information was not available at the time of publication.
OPERATING CHARACTERISTICS
TA = 25°C
PARAMETER
Cpd
(1)
Power dissipation
capacitance
Outputs enabled
Outputs disabled
TEST CONDITIONS
CL = 50 pF,
f = 10 MHz
VCC = 1.8 V
VCC = 2.5 V
VCC = 3.3 V
TYP
TYP
TYP
(1)
54
64
(1)
6
7
UNIT
pF
This information was not available at the time of publication.
7
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES025E – JULY 1995 – REVISED OCTOBER 2004
PARAMETER MEASUREMENT INFORMATION
VCC = 1.8 V
2 × VCC
S1
1 kΩ
From Output
Under Test
Open
TEST
tpd
tPLZ/tPZL
tPHZ/tPZH
GND
CL = 30 pF
(see Note A)
1 kΩ
S1
Open
2 × VCC
GND
LOAD CIRCUIT
tw
VCC
Timing
Input
VCC/2
VCC/2
VCC/2
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VCC/2
VCC/2
0V
tPLH
Output
Control
(low-level
enabling)
VCC/2
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
tPLZ
VCC
VCC/2
tPZH
VOH
VCC/2
0V
Output
Waveform 1
S1 at 2 × VCC
(see Note B)
tPHL
VCC/2
VCC
VCC/2
tPZL
VCC
Input
VOLTAGE WAVEFORMS
PULSE DURATION
th
VCC
Data
Input
VCC/2
0V
0V
tsu
Output
VCC
VCC/2
Input
Output
Waveform 2
S1 at GND
(see Note B)
VOL + 0.15 V
VOL
tPHZ
VCC/2
VOH
VOH − 0.15 V
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2 ns, tf ≤ 2 ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
8
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES025E – JULY 1995 – REVISED OCTOBER 2004
PARAMETER MEASUREMENT INFORMATION
VCC = 2.5 V ± 0.2 V
2 × VCC
S1
500 Ω
From Output
Under Test
Open
TEST
tpd
tPLZ/tPZL
tPHZ/tPZH
GND
CL = 30 pF
(see Note A)
500 Ω
S1
Open
2 × VCC
GND
LOAD CIRCUIT
tw
VCC
Timing
Input
VCC/2
VCC/2
VCC/2
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VCC/2
VCC/2
0V
tPLH
Output
Control
(low-level
enabling)
VCC/2
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
tPLZ
VCC
VCC/2
tPZH
VOH
VCC/2
0V
Output
Waveform 1
S1 at 2 × VCC
(see Note B)
tPHL
VCC/2
VCC
VCC/2
tPZL
VCC
Input
VOLTAGE WAVEFORMS
PULSE DURATION
th
VCC
Data
Input
VCC/2
0V
0V
tsu
Output
VCC
VCC/2
Input
Output
Waveform 2
S1 at GND
(see Note B)
VOL + 0.15 V
VOL
tPHZ
VCC/2
VOH
VOH − 0.15 V
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2 ns, tf ≤ 2 ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
Figure 2. Load Circuit and Voltage Waveforms
9
SN74ALVCH16543
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES025E – JULY 1995 – REVISED OCTOBER 2004
PARAMETER MEASUREMENT INFORMATION
VCC = 2.7 V AND 3.3 V ± 0.3 V
6V
S1
500 Ω
From Output
Under Test
Open
GND
CL = 50 pF
(see Note A)
500 Ω
TEST
S1
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
6V
GND
tw
LOAD CIRCUIT
2.7 V
2.7 V
Timing
Input
Input
1.5 V
1.5 V
0V
1.5 V
0V
tsu
VOLTAGE WAVEFORMS
PULSE DURATION
th
2.7 V
Data
Input
1.5 V
1.5 V
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Output
Control
(low-level
enabling)
2.7 V
1.5 V
0V
tPZL
2.7 V
Input
1.5 V
1.5 V
0V
tPLH
1.5 V
1.5 V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
tPLZ
3V
1.5 V
VOL + 0.3 V
VOL
tPZH
VOH
Output
Output
Waveform 1
S1 at 6 V
(see Note B)
tPHL
1.5 V
Output
Waveform 2
S1 at GND
(see Note B)
tPHZ
VOH
1.5 V
VOH − 0.3 V
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
Figure 3. Load Circuit and Voltage Waveforms
10
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
(3)
Device Marking
(4/5)
(6)
SN74ALVCH16543DGGR
ACTIVE
TSSOP
DGG
56
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ALVCH16543
SN74ALVCH16543DL
ACTIVE
SSOP
DL
56
20
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ALVCH16543
SN74ALVCH16543DLR
ACTIVE
SSOP
DL
56
1000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ALVCH16543
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of