W551C005

W551Cxxx Serial Voice Memory Winbond W551Cxxx Serial Voice Memory Data Sheet Winbond Electronics Corp. Release Date: January 2, 2001 W551Cxxx Data Sheet Contents General Description 2 1.1 W551Cxxx Product Selection Guide ...................................................................................2 Features 3 2.1 W551Cxxx Features Description .........................................................................................3 2.2 W551Cxxx Pin Configuration & Description ......................................................................4 2.3 W551Cxxx System Block Diagram .....................................................................................5 Function Description 6 3.1 W551Cxxx Functional Description......................................................................................6 3.2 W551Cxxx Normal Read Mode...........................................................................................7 3.3 W551Cxxx Self-test Mode...................................................................................................8 Electrical Characteristics 9 4.1 W551Cxxx Absolute Maximum Ratings .............................................................................9 4.2 W551Cxxx DC Characteristics ............................................................................................9 4.3 W551Cxxx AC Characteristics ..........................................................................................10 Timing Waveform 11 5.1 W551Cxxx Timing Waveform...........................................................................................11 Applications 12 6.1 W551Cxxx Applications ....................................................................................................12 6.2 W551Cxxx Application Circuits ........................................................................................13 Winbond Electronics Corp. Release Date: January 2, 2001 W551Cxxx Data Sheet General Description The W551Cxxx series is designated to interface with Winbond PowerSpeech , BandDirector , and ViewTalk family ICs directly. Application with PowerSpeech , BandDirector , and ViewTalk the serial voice memory W551Cxxx can lengthen the playback duration to meet the increasing market demand on complicated scenarios. The W551Cxxx was already utilized the same serial interface as Winbond serial flash memory W55Fxx for designer to simulate & verify the memory contents in advance. Besides that, W551Cxxx also provides a "Self-test mode" to verify the voice memory contents easily and quickly. 1.1 W551Cxxx Product Selection Guide W551Cxxx Serial Voice Memory is used to store pre-determined data. To communicate with W551Cxxx in serial data mode, the connection interface total pin counts can be reduced to three pins only. The following table is shown the product selection guide of part number vs. memory density. Part # W551C002 W551C005 W551C010 W551C020 W551C040 W551C060 W551C080 Density 256K bits 512K bits 1M bits 2M bits 4M bits 6M bits 8M bits Winbond Electronics Corp. 2 Release Date: January 2, 2001 W551Cxxx Data Sheet Features 2.1 W551Cxxx Features Description !" !" !" Wide range of operating voltage: 2.4V ~ 5.5V Operating frequency up to 1 MHz (@VDD = 2.4V) Versatile operation modes #"Serial read mode #"Serial check-sum output mode #"Fast self-test mode !" Directly cascade for longer duration applications !" Serial shift-in address bus !" Serial data mode, the connection interface can be reduced to three pins: #"CLK, ADDR, DATA !" Read access time: 500 ns !" Low power consumption #"Operation current: 5 mA (typ.) #"Standby current: 2 uA (typ.) Winbond Electronics Corp. 3 Release Date: January 2, 2001 W551Cxxx Data Sheet 2.2 W551Cxxx Pin Configuration & Description Pin Configuration TEST_OUT NC VSS ADDR 1 2 3 4 8 7 6 5 TEST VDD CLK DATA Pin Description Pin Name TEST TEST_OUT I/O I O Description Internal pulled high. Set TEST to low will enable "Self-test" function. The output pin indicates the result of self-test process. For correct result, a logic " 0 " signal will be output. For incorrect result, a logic " 1 " signal will be output. At Power-On-Reset condition, it outputs a logic " 1 " signal. Clock input for shift-in start address; The first rising-edge signal will reset the address counter. Bi-directional data pin with the internal pull-high. Clock input for data read-out. Positive power supply pin.
ADDR DATA CLK VDD VSS I IO I Power Ground Winbond Electronics Corp. 4 Release Date: January 2, 2001 W551Cxxx Data Sheet 2.3 W551Cxxx System Block Diagram ADDR
DATA CLK Shit Register/ Address Counter Output Buffer Decoder Core Array TEST TEST_OUT Control POR Page-Code Comparator Winbond Electronics Corp. 5 Release Date: January 2, 2001 W551Cxxx Data Sheet Function Description 3.1 W551Cxxx Functional Description The maximum number of the ADDR clock is 24 bits. The address data is shifted into the 24 bits address counter by the ADDR clock. The MSB x bits of the address counter are the page codes, and the rest (24 - x) bits are the bit of address. Note that the MSB is shifted first. The MSB 5 bits of the address counter are always gating (exclusive OR) with the content of the page-code cells to determine whether these two articles are match or not. Only when the page codes are matched with the content of the page-code cells, this device can be enabled. The counting source of the address counter is the CLK clock, the falling edge signal of the CLK clock up-count the counter. In normal-read mode the ADDR and CLK clock cannot be active simultaneously. The first rising edge signal of the ADDR clock after CLK clocking will reset the address shift registers. The following table describes the needed bits of ″page code″: Part # Density Bits of page code W551C002 256K bits 6 W551C005 512K bits 5 W551C010 1M bits 4 W551C020 2M bits 3 W551C040 4M bits 2 W551C060 6M bits 2 W551C080 8M bits 1 Winbond Electronics Corp. 6 Release Date: January 2, 2001 W551Cxxx Data Sheet 3.2 W551Cxxx Normal Read Mode This chip can also be connected with Winbond PowerSpeech , BandDirector , and ViewTalkTM series directly. Because in power-on condition, the default function mode is the normal read mode, then the mode selected procedure can be skipped. T I ADDR DATA ••• ••• 24 bits CLK TEST Winbond Electronics Corp. 7 Release Date: January 2, 2001 W551Cxxx Data Sheet 3.3 W551Cxxx Self-test Mode In normal read mode, the TEST pin is internally pulled high, and the TEST_OUT pin is in logic ' 1 ' state. When the TEST pin is pulled low, the W551Cxxx enters the "self-test mode". In this mode, the self-test process is started at the falling edge of the TEST signal. The self-test process accumulates each byte (8 bit) of voice memory content from address 00000h to 7FFFFh. If the accumulated result is 00h, a logic ' 0 ' will be output from TEST_OUT pin. Or else, a logic ' 1 ' signal will be output from TEST_OUT pin. TTEST TEST TEST _OUT TEST _OUT For "Correct" result For "Incorrect" result End of test Winbond Electronics Corp. 8 Release Date: January 2, 2001 W551Cxxx Data Sheet Electrical Characteristics 4.1 W551Cxxx Absolute Maximum Ratings PARAMETER Operation Temperature Storage Temperature Power Supply (VDD-VSS) Input D.C. Voltage Transient Voltage (