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)： 11/28頁
文件大小： 447K
代理商： 25AA040A
2007 Microchip Technology Inc.
DS21827D-page 11
25AA040A/25LC040A
2.6
Write Status Register Instruction
(
WRSR
)
The Write Status Register instruction (
WRSR
) allows the
user to write to the nonvolatile bits in the STATUS regis-
ter as shown in Table 2-2. See Figure 2-7 for the
WRSR
timing sequence. Four levels of protection for the array
are selectable by writing to the appropriate bits in the
STATUS register. The user has the ability to write-protect
none, one, two or all four of the segments of the array as
shown in Table 2-3.
TABLE 2-3:
ARRAY PROTECTION
FIGURE 2-7:
WRITE STATUS REGISTER TIMING SEQUENCE (
WRSR
)
BP1
BP0
Array Addresses
Write-Protected
0
0
0
1
none
upper 1/4
(180h-1FFh)
upper 1/2
(100h-1FFh)
all
(000h-1FFh)
1
0
1
1
SO
SI
CS
9
10
11
12
13
14
15
0
1
0
0
0
0
0
0
7
6
5
4
2
1
0
Instruction
Data to STATUS Register
High-impedance
SCK
0
2
3
4
5
6
7
1
8
3
Note:
An internal write cycle (T
WC
) is initiated on the rising edge of CS after a valid write STATUS register
sequence.
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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*