参数资料
| 型号： | 25AA320-I/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 10/26页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 32KBIT 1MHZ 8SOIC |
| 标准包装： | 100 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 32K (4K x 8) |
| 速度： | 1MHz |
| 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： | 1449 (CN2011-ZH PDF) |
25AA320/25LC320/25C320
3.5
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. When set to a ‘ 1 ’, the latch
allows writes to the array, when set to a ‘ 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 STA-
TUS register. This bit is read-only.
7
WPEN
6
X
5
X
4
X
3
BP1
2
BP0
1
WEL
0
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. These
The Write-In-Process (WIP) bit indicates whether the
25XX320 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.
bits are nonvolatile.
See Figure 3-6 for the RDSR timing sequence.
FIGURE 3-6:
CS
READ STATUS REGISTER TIMING SEQUENCE
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
DS21227F-page 10
? 2008 Microchip Technology Inc.
相关PDF资料 |
PDF描述 |
|---|---|
| 25LC320-I/SN | IC EEPROM 32KBIT 2MHZ 8SOIC |
| 24LC128-I/P | IC EEPROM 128KBIT 400KHZ 8DIP |
| ASM30DTBS | CONN EDGECARD 60POS R/A .156 SLD |
| AGM30DTBS | CONN EDGECARD 60POS R/A .156 SLD |
| 25AA512-I/SN | IC EEPROM 512KBIT 20MHZ 8SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 25AA320T | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:32K SPI Bus Serial EEPROM |
| 25AA320TE/P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:32K SPI Bus Serial EEPROM |
| 25AA320T-E/P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:32K SPI Bus Serial EEPROM |
| 25AA320TE/SN | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:32K SPI Bus Serial EEPROM |
| 25AA320T-E/SN | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:32K SPI Bus Serial EEPROM |
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