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參數(shù)資料
| 型號： | 25AA040A |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 4K SPI Bus Serial EEPROM |
| 中文描述： | 4K的SPI總線串行EEPROM |
| 文件頁數(shù)： | 9/28頁 |
| 文件大小： | 447K |
| 代理商： | 25AA040A |
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2007 Microchip Technology Inc.
DS21827D-page 9
25AA040A/25LC040A
2.4
Write Enable (
WREN
) and Write
Disable (
WRDI
)
The 25XX040A contains a write enable latch. See
Table 2-4 for the Write-Protect Functionality Matrix.
This latch must be set before any write operation will be
completed internally. The
WREN
instruction will set the
latch, and the
WRDI
will reset the latch.
The following is a list of conditions under which the
write enable latch will be reset:
Power-up
WRDI
instruction successfully executed
WRSR
instruction successfully executed
WRITE
instruction successfully executed
WP pin is brought low
FIGURE 2-4:
WRITE ENABLE SEQUENCE (
WREN
)
FIGURE 2-5:
WRITE DISABLE SEQUENCE (
WRDI
)
SCK
0
2
3
4
5
6
7
1
SI
High-impedance
SO
CS
0
1
0
0
0
0
0
1
SCK
0
2
3
4
5
6
7
1
SI
High-impedance
SO
CS
0
1
0
0
0
0
0
1
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 25AA080 | 8K/16K 1.8V SPI Bus Serial EEPROM |
| 25AA160 | 8K/16K 1.8V SPI Bus Serial EEPROM |
| 25AA1024 | 1 Mbit SPI Bus Serial EEPROM |
| 25AA128 | 128K SPI Bus Serial EEPROM |
| 25AA160A | 16K SPI Bus Serial EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 25AA040A/S16K | 制造商:Microchip Technology Inc 功能描述:4K, 512 X 8, 1.8V SER EE, DIE - Gel-pak, waffle pack, wafer, diced wafer on film |
| 25AA040A/W16K | 制造商:Microchip Technology Inc 功能描述:4K, 512 X 8, 1.8V SER EE, WAFER - Gel-pak, waffle pack, wafer, diced wafer on film |
| 25AA040A/WF16K | 制造商:Microchip Technology Inc 功能描述:4K, 512 X 8, 1.8V SER EE, WAF - Gel-pak, waffle pack, wafer, diced wafer on film |
| 25AA040A_09 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4K SPI Bus Serial EEPROM |
| 25AA040A_12 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4K SPI Bus Serial EEPROM |
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