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参数资料
| 型号： | TC1232COA |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SOIC-8 |
| 文件页数： | 19/20页 |
| 文件大小： | 262K |
| 代理商： | TC1232COA |
TC1232
DS21370C-page 8
Preliminary
2005 Microchip Technology Inc.
4.2
Push Button Reset Input
The debounced manual reset input (PB RST) manually
forces the reset outputs into their active states.
Figure 4-5 shows a block diagram for using the
TC1232 with a push button switch.
Once PB RST has been low for a time tPBD (the push-
button delay time), the reset outputs go active. The
reset outputs remain in their active states for a
minimum of 250 ms after PB RST rises above VIH.
Figure 4-6 shows a waveform for the push button
switch input and the reset pins output.
A mechanical push button or active logic signal can
drive the PB RST input. The debounced input ignores
input pulses less than 1 ms and recognizes pulses of
20 ms or greater. No external pull-up resistor is
required because the PB RST input has an internal
pull-up to VCC of approximately 100 A.
FIGURE 4-5:
Push Button Reset and
Watchdog Timer.
FIGURE 4-6:
Push Button Reset –
PB RST Input.
VCC
TOL
PB RST
GND
RST
ST
I/O
Reset
+5V
TC1232
TD
Microprocessor
RST
VIL
tPB
RST
tPBD
VIH
tRST
PB RST
The debounced PB RST input ignores input pulses less
than 1 ms and is designed to recognize pulses of
20 ms or greater.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC1232COA | 制造商:Microchip Technology Inc 功能描述:MICROPROCESSOR MONITOR SMD 1232 |
| TC1232COA713 | 功能描述:监控电路 Microprocessor Montr RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TC1232COE | 功能描述:监控电路 Microprocessor Montr RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TC1232COE713 | 功能描述:监控电路 Microprocessor Montr RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TC1232CPA | 功能描述:监控电路 Microprocessor Montr RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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