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參數(shù)資料
| 型號(hào)： | 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)： | 12/28頁 |
| 文件大?。?/td> | 447K |
| 代理商： | 25AA040A |
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25AA040A/25LC040A
DS21827D-page 12
2007 Microchip Technology Inc.
2.7
Data Protection
The following protection has been implemented to
prevent inadvertent writes to the array:
The write enable latch is reset on power-up
A write enable instruction must be issued to set
the write enable latch
After a byte write, page write or STATUS register
write, the write enable latch is reset
CS must be set high after the proper number of
clock cycles to start an internal write cycle
Access to the array during an internal write cycle
is ignored and programming is continued
2.8
Power-On State
The 25XX040A powers on in the following state:
The device is in low-power Standby mode
(CS=
1
)
The write enable latch is reset
SO is in high-impedance state
A high-to-low-level transition on CS is required to
enter active state
TABLE 2-4:
WRITE-PROTECT FUNCTIONALITY MATRIX
WP
(pin 3)
WEL
(SR bit 1)
Protected Blocks
Unprotected Blocks
STATUS Register
0
(low)
1
(high)
1
(high)
x
= don’t care
x
Protected
Protected
Protected
0
Protected
Protected
Protected
1
Protected
Writable
Writable
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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