参数资料
型号: CAT1161WI-42-T3
厂商: ON Semiconductor
文件页数: 6/13页
文件大小: 0K
描述: IC SUPERVISOR W/MEM 4.25V 8SOIC
标准包装: 1
类型: 简单复位/加电复位
监视电压数目: 1
输出: 开路漏极或开路集电极
复位: 高有效/低有效
复位超时: 最小为 130 ms
电压 - 阀值: 4.25V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 标准包装
产品目录页面: 806 (CN2011-ZH PDF)
其它名称: CAT1161WI-42-T3DKR
CAT1161, CAT1162
Hardware Data Protection
The CAT1161/2 is designed with the following hardware
data protection features to provide a high degree of data
integrity.
1. The CAT1161/2 features a WP pin. When the WP
pin is tied high the entire memory array becomes
write protected (read only).
2. The V CC sense provides write protection when
V CC falls below the reset threshold value (V TH ).
The V CC lock out inhibits writes to the serial
EEPROM whenever V CC falls below (power
down) V TH or until V CC reaches the reset threshold
(power up) V TH . Any attempt to access the
internal EEPROM is not recognized and an ACK
will not be sent on the SDA line when RESET or
RESET is active.
Reset Threshold Voltage
The CAT1161/2 is offered with five reset threshold
voltage ranges. They are 4.50 ÷ 4.75 V, 4.25 ÷ 4.50 V,
3.00 ÷ 3.15 V, 2.85 ÷ 3.00 V and 2.55 ÷ 2.70 V.
SCL
tF
tLOW
tHIGH
tLOW
tR
tSU:STA
tHD:STA
tHD:DAT
tSU:DAT
tSU:STO
SDA IN
tAA
tDH
tBUF
SDA OUT
Figure 2. Bus Timing
SCL
SDA
8TH BIT
BYTE n
ACK
tWR
SD A
SCL
START BIT
STOP
CONDITION
Figure 3. Write Cycle Timing
Figure 4. Start/Stop Timing
http://onsemi.com
6
START
CONDITION
STOP BIT
ADDRESS
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