参数资料
型号: TC1271ASVRCTR
厂商: Microchip Technology
文件页数: 17/48页
文件大小: 0K
描述: IC RESET MONITOR 2.93V SOT143-4
标准包装: 3,000
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: 2.93V
工作温度: -40°C ~ 125°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: 带卷 (TR)
TC1270A/70AN/71A
3.0
PIN DESCRIPTIONS
Descriptions of the pins are listed in Table 3-1 .
TABLE 3-1:
PINOUT DESCRIPTION
Pin Number
TC1270A
(Push-Pull,
TC1270AN
(Open-Drain,
TC1271A
(Push-Pull,
Pin
active-low)
active-low)
active-high)
Sym
Standard Function
Type
Buffer /
Driver
5
1
1
5
1
V SS
Power
Ground
4
2
RST
O
Push-
Reset output (Push-Pull), active-low
Pull
H = V DD > V TRIP , Reset pin is inactive
(after Reset Delay Timer completes)
L = V DD < V TRIP , Reset pin is active
Goes active (Low) if one of these conditions
occurs:
1. If V DD falls below the selected Reset
voltage threshold.
2. If the MR pin is forced low.
3. During power-up.
4
2
RST
O
Open-
Reset output (Open-Drain), active-low
Drain
Float = V DD > V TRIP , Reset pin is inactive
(after Reset Delay Timer completes)
L = V DD < V TRIP , Reset pin is active
Goes active (Low) if one of these conditions
occurs:
1. If V DD falls below the selected Reset
voltage threshold.
2. If the MR pin is forced low.
3. During power-up.
4
2
RST
O
Push-
Reset output (Push-Pull), active-high
Pull
H = V DD < V TRIP , Reset pin is active
L = V DD > V TRIP , Reset pin is inactive
(after Reset Delay Timer completes)
Goes active (High) if one of these conditions
occurs:
1. If V DD falls below the selected Reset
voltage threshold.
2. If the MR pin is forced low.
3. During power-up.
Note 1:
The MR pin has an internal weak pull-up (18.5 k ? typical).
? 2007-2011 Microchip Technology Inc.
DS22035D-page 17
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