参数资料
型号: CAT25640HU3I-GT3
厂商: ON Semiconductor
文件页数: 10/19页
文件大小: 0K
描述: IC EEPROM 64KB SPI SERIAL 8UDFN
标准包装: 3,000
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 64K (8K 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-UFDFN 裸露焊盘
供应商设备封装: 8-UDFN(2x3)
包装: 带卷 (TR)
CAT25640
Write Status Register
The Status Register is written by sending a WRSR
instruction according to timing shown in Figure 7. Only bits
2, 3 and 7 can be written using the WRSR command.
Write Protection
The Write Protect (WP) pin can be used to protect the
Block Protect bits BP0 and BP1 against being inadvertently
altered. When WP is low and the WPEN bit is set to “ 1”,
write operations to the Status Register are inhibited. WP
going low while CS is still low will interrupt a write to the
status register. If the internal write cycle has already been
initiated, WP going low will have no effect on any write
operation to the Status Register. The WP pin function is
blocked when the WPEN bit is set to “0”. The WP input
timing is shown in Figure 8.
CS
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SCK
OPCODE
DATA IN
SI
0
0
0
0
0
0
0
1
7
6
5
4
3
2
1
0
MSB
SO
HIGH IMPEDANCE
Dashed Line = mode (1, 1)
Figure 7. WRSR Timing
t WPS
t WPH
CS
SCK
WP
WP
Dashed Line = mode (1, 1)
Figure 8. WP Timing
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