参数资料
型号: CAT812TTBI-T3
厂商: ON Semiconductor
文件页数: 2/9页
文件大小: 0K
描述: IC SUPERVISOR MPU 3.08V SOT143-4
标准包装: 1
类型: 简单复位/加电复位
监视电压数目: 1
输出: 推挽式,图腾柱
复位: 高有效
复位超时: 最小为 140 ms
电压 - 阀值: 3.08V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: TO-253-4,TO-253AA
供应商设备封装: SOT-143
包装: 标准包装
其它名称: CAT812TTBI-T3DKR
CAT811, CAT812
Table 1. THRESHOLD SUFFIX SELECTOR DESCRIPTION
Nominal Threshold Voltage
4.63 V
4.38 V
4.00 V
3.08 V
2.93 V
2.63 V
2.32 V
Table 2. PIN DESCRIPTION
Pin Number
Threshold Suffix Designation
L
M
J
T
S
R
Z
CAT811
1
2
?
3
4
CAT812
1
?
2
3
4
MR
Pin Name
GND
RESET
RESET
MR
V CC
Description
Ground.
Active LOW reset. RESET is asserted if V CC falls below the reset threshold and re-
mains low for at least 140 ms after V CC rises above the reset threshold.
Active HIGH reset. RESET is asserted if V CC falls below the reset threshold and re-
mains high for at least 140 ms after V CC rises above the reset threshold.
Manual Reset Input. A logic LOW on MR asserts RESET. RESET remains active as
long as MR is LOW and for 140 ms after MR returns HIGH. The active low input has
an internal 20 k W pull ? up resistor. The input should be left open if not used.
Power supply voltage that is monitored.
V CC
V CC
V CC
TOLERANCE
BIAS
+
RESET
&
DIGITAL
DELAY
RESET
VOLTAGE
REFERENCE
CAT811
GND
MR
V CC
V CC
V CC
TOLERANCE
BIAS
+
RESET
&
DIGITAL
DELAY
RESET
VOLTAGE
REFERENCE
CAT812
GND
Figure 1. Block Diagrams
http://onsemi.com
2
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