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參數資料
| 型號： | W55212B |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | SRAM |
| 英文描述： | 256K×1bit CMOS Static RAM For Serial Voice Recording(用于錄音的128K×1位的CMOS靜態RAM) |
| 中文描述： | 256K X 1 STANDARD SRAM, 80 ns, PDIP18 |
| 文件頁數： | 3/7頁 |
| 文件大小： | 84K |
| 代理商： | W55212B |
W55212B
Publication Release Date: September 1996
- 3 -
Revision A1
Before a read or write operation, the address counter must be reset by sending an ADDR pulse and
DATA = 0.
After power on, the read operation is disabled, and a read operation may be performed only after a
write operation is completed.
In write-in operation, the EOP signal will change from low to high and remain high when the final
address of the chip is encountered. It will change to low again with the next ADDR pulse.
In read-out operation, the EOP pin will generate one pulse signal when the final address of the
SRAM chip is encountered.
The timing of the start address loading in write-in/read-out operation is shown below:
Load start address for write-in/read-out operation:
CS
ADDR
CLK
DATA
EOP
K
K
Write-in operation:
CS
ADDR
CLK
DATA
EOP
W/R
256K
K
K
Read-out operation:
相關PDF資料 |
PDF描述 |
|---|---|
| W55412A | VOICE PROM (256K OTP) |
| W55F05 | 4 Mbit Uniform Sector, Serial Flash Memory |
| W55F10 | 4 Mbit Uniform Sector, Serial Flash Memory |
| W55F20 | 4 Mbit Uniform Sector, Serial Flash Memory |
| W55FXX | 4 Mbit Uniform Sector, Serial Flash Memory |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W55412A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:VOICE PROM (256K OTP) |
| W55F01 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| W55F05 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:SERIAL FLASH EEPROM SERIES |
| W55F10 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:SERIAL FLASH EEPROM SERIES |
| W55F10A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SERIAL EEPROM|FLASH|CMOS|PLASTIC |
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