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參數(shù)資料
| 型號(hào)： | AM28F256 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | Serial-in shift registers with output registers and open collector outputs 16-PDIP 0 to 70 |
| 中文描述： | 256千比特（32畝× 8位）的CMOS 12.0伏，整體擦除閃存 |
| 文件頁(yè)數(shù)： | 20/35頁(yè) |
| 文件大小： | 493K |
| 代理商： | AM28F256 |
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20
Am28F256
Auto Select Command
AMD’s Flash memories are designed for use in applica-
tions where the local CPU alters memory contents. Ac-
cordingly, manufacturer and device codes must be
accessible while the device resides in the target sys-
tem. PROM programmers typically access the signa-
ture codes by raising A9 to a high voltage. However,
multiplexing high voltage onto address lines is not a
generally desired system design practice.
The device contains an Auto Select operation to sup-
plement traditional PROM programming methodology.
The operation is initiated by writing 80h or 90h into the
command register. Following this command, a read
cycle address 0000h retrieves the manufacturer code
of 01h. A read cycle from address 0001h returns the
device code. To terminate the operation, it is necessary
to write another valid command, such as Reset (FFh),
into the register.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM28F256-120EE | Serial-out shift registers with input latches 16-SOIC 0 to 70 |
| AM28F256-120EI | Serial-out shift registers with input latches 16-SOIC 0 to 70 |
| AM28F256-120FC | Serial-out shift registers with input latches 16-SOIC 0 to 70 |
| AM28F256-120FCB | Serial-out shift registers with input latches 16-SOIC 0 to 70 |
| AM28F256-120FE | Serial-out shift registers with input latches 16-SOIC 0 to 70 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM28F256-120C3/BUA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
| AM28F256-120C3/BXA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
| AM28F256-120C3JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
| AM28F256-120C3JI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
| AM28F256-120C3PC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
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