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參數(shù)資料
| 型號： | X84256B-2.5 |
| 英文描述： | Serial EEPROM |
| 中文描述： | 串行EEPROM |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 145K |
| 代理商： | X84256B-2.5 |
X84256
Characteristics subject to change without notice.
4 of 13
REV 1.1 11/22/00
www.xicor.com
Figure 1. Read Sequence
Figure 2. Write Sequence
CE
OE
WE
I/O (IN)
"0"
RESET
When Accessing: X84256 Array: A15 = 0
Load Address
Read Data
A15 A14 A13 A12 A11 A10 A9 A8
A7 A6 A5 A4 A3 A2 A1 A0
I/O (OUT)
D7 D6 D5 D4 D3 D2 D1 D0
CE
OE
WE
I/O (IN)
"0"
"0"
"1"
RESET
Load Address
Load Data
START
Nonvolatile
Write
A8
A7 A6 A5 A4 A3 A2 A1 A0
D7 D6 D5 D4 D3 D2 D1 D0
I/O (OUT)
When Accessing: X84256 Array: A15 = 0
A15A14 A13 A12 A11A10 A9
Nonvolatile Write Status
The status of a nonvolatile write cycle can be deter-
mined at any time by simply reading the state of the l/O
pin on the device. This pin is read when OE and CE
are LOW and WE is HIGH. During a nonvolatile write
cycle the l/O pin is LOW. When the nonvolatile write
cycle is complete, the l/O pin goes HIGH. A reset
sequence can also be issued during a nonvolatile write
cycle with the same result: I/O is LOW as long as a
nonvolatile write cycle is in progress, and l/O is HIGH
when the nonvolatile write cycle is done.
相關(guān)PDF資料 |
PDF描述 |
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| X84256S825 | Serial EEPROM |
| X84256V1425 | Serial EEPROM |
| X86-64 | x86-64 - Advanced Micro Devices. Inc. x86-64TM Technology White Paper |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X84256S16 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:UPort Saver EEPROM |
| X84256S16-1.8 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:UPort Saver EEPROM |
| X84256S16-2.5 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:UPort Saver EEPROM |
| X84256S16I | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:UPort Saver EEPROM |
| X84256S16I-1.8 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:UPort Saver EEPROM |
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