收藏本站
25AA020A/25LC020A
2.5
Read Status Register Instruction
(RDSR)
The Write Enable Latch (WEL) bit indicates the status
of the write enable latch and is read-only. When set to
a ‘ 1 ’, the latch allows writes to the array, when set to a
The Read Status Register instruction ( RDSR ) provides
access to the STATUS register. See Figure 2-6 for the
RDSR timing sequence. The STATUS register may be
read at any time, even during a write cycle. The
STATUS register is formatted as follows:
‘ 0 ’, the latch prohibits writes to the array. The state of
this bit can always be updated via the WREN or WRDI
commands regardless of the state of write protection
on the STATUS register. These commands are shown
in Figure 2-4 and Figure 2-5.
TABLE 2-2:
STATUS REGISTER
The Block Protection (BP0 and BP1) bits indicate
which blocks are currently write-protected. These bits
7 6 5 4 3 2 1
– – – – W/R W/R R
X X X X BP1 BP0 WEL
0
R
WIP
are set by the user issuing the WRSR instruction, which
is shown in Figure 2-7. These bits are nonvolatile and
are described in more detail in Table 2-3.
W/R = writable/readable. R = read-only.
The Write-In-Process (WIP) bit indicates whether the
25XX020A is busy with a write operation. When set to
a ‘ 1 ’, a write is in progress, when set to a ‘ 0 ’, no write
is in progress. This bit is read-only.
FIGURE 2-6:
CS
READ STATUS REGISTER TIMING SEQUENCE ( RDSR )
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SCK
Instruction
SI
0
0
0
0
0
1
0
1
SO
High-Impedance
7
Data from STATUS register
6 5 4 3 2
1
0
DS21833F-page 10
? 2003-2011 Microchip Technology Inc.
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
25AA02E48-I/SN IC EEPROM 2KBIT 10MHZ 8SOIC
25AA080C-I/MS IC SRL EEPROM 1KX8 1.8V 8-MSOP
25AA1024T-I/MF IC EEPROM 1MBIT 20MHZ 8DFN
25AA160C-I/P IC SRL EEPROM 2KX8 1.8V 8-PDIP
25AA512T-I/MF IC EEPROM 512KBIT 20MHZ 8DFN
25C040X/ST IC EEPROM 4KBIT 3MHZ 8TSSOP
25C080-I/P IC EEPROM 8KBIT 3MHZ 8DIP
25C320-E/P IC EEPROM 32KBIT 3MHZ 8DIP
相关代理商/技术参数
25AA020A-I/OT 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2K SPI Bus Serial EEPROM
25AA020A-I/P 功能描述:电可擦除可编程只读存储器 2K 256X8 1.8V SER EE IND RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
25AA020A-I/SN 功能描述:电可擦除可编程只读存储器 2K 256X8 1.8V SER EE IND RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
25AA020A-I/ST 功能描述:电可擦除可编程只读存储器 2K 256X8 1.8V SER EE IND RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
25AA020AT-E/MC 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2K SPI Bus Serial EEPROM
25AA020AT-E/MS 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2K SPI Bus Serial EEPROM
25AA020AT-E/OT 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2K SPI Bus Serial EEPROM
25AA020AT-E/P 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2K SPI Bus Serial EEPROM