参数资料
| 型号： | 25AA080A-I/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 10/26页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 8KBIT 10MHZ 8SOIC |
| 标准包装： | 100 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 8K (1K x 8) |
| 速度： | 10MHz |
| 接口： | SPI 3 线串行 |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
| 产品目录页面： | 1448 (CN2011-ZH PDF) |
| 其它名称： | 25AA080A-I/SNG 25AA080A-I/SNG-ND |
25XX080A/B
2.5
Read Status Register Instruction
The Write Enable Latch (WEL) bit indicates the status
( RDSR )
The Read Status Register instruction ( RDSR ) provides
access to the Status Register. The Status Register may
be read at any time, even during a write cycle. The
Status Register is formatted as follows:
of the write enable latch and is read only. When set to
a ‘ 1 ’, the latch allows writes to the array or the Status
Register, when set to a ‘ 0 ’, the latch prohibits writes to
the array or the Status Register. 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
TABLE 2-2:
STATUS REGISTER
and Figure 2-5.
7 6 5 4 3 2 1
W/R – – – W/R W/R R
WPEN X X X BP1 BP0 WEL
0
R
WIP
The Block Protection (BP0 and BP1) bits indicate
which blocks are currently write-protected. These bits
are set by the user issuing the WRSR instruction, which
is in Figure 2-7. These bits are nonvolatile and are
W/R = writable/readable. R = read-only.
The Write-In-Process (WIP) bit indicates whether the
25XX080A/B 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.
shown in Table 2-3.
See Figure 2-6 for the RDSR timing sequence.
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
high-impedance
data from Status Register
SO
7
6
5
4
3
2
1
0
DS21808D-page 10
? 2007 Microchip Technology Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 25AA080AMS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8K SPI Bus Serial EEPROM |
| 25AA080AP | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8K SPI Bus Serial EEPROM |
| 25AA080ASN | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8K SPI Bus Serial EEPROM |
| 25AA080AST | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8K SPI Bus Serial EEPROM |
| 25AA080AT-E/MS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8K SPI Bus Serial EEPROM |
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