参数资料
型号: MCP4642-103E/UN
厂商: Microchip Technology
文件页数: 35/92页
文件大小: 0K
描述: IC DGTL POT 10K 256TAPS 10-MSOP
标准包装: 100
接片: 129
电阻(欧姆): 10k
电路数: 2
温度系数: 标准值 150 ppm/°C
存储器类型: 非易失
接口: I²C(设备位址)
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-MSOP
包装: 管件
产品目录页面: 677 (CN2011-ZH PDF)
MCP454X/456X/464X/466X
DS22107A-page 40
2008 Microchip Technology Inc.
bit 0
WP: EEPROM Write Protect Status bit (Refer to Section “EEPROM Write Protect” for further infor-
mation)
This bit indicates the status of the write protection on the EEPROM memory. When Write Protect is
enabled, writes to all non-volatile memory are prevented. This includes the General Purpose EEPROM
memory, and the non-volatile Wiper registers. Write Protect does not block modification of the volatile
wiper register values or the volatile TCON register value (via Increment, Decrement, or Write
commands).
This status bit is an OR of the devices Write Protect pin (WP) and the internal non-volatile WP bit. High
Voltage commands are required to enable and disable the internal WP EEPROM bit.
1
=
EEPROM memory is Write Protected
0
=
EEPROM memory can be written
REGISTER 4-1:
STATUS REGISTER (ADDRESS = 0x05) (CONTINUED)
Note 1:
Requires a High Voltage command to modify the state of this bit (for Non-Volatile devices only). This bit is
Not directly written, but reflects the system state (for this feature).
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