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| 型号： | TC1232COE713 |
| 厂商： | Microchip Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC MPU MONITOR 4.5V 16-SOIC |
| 标准包装： | 1,000 |
| 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 250 ms |
| 电压 - 阀值： | 4.37V，4.62V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
TC1232
Microprocessor Monitor
Features
? Precision Voltage Monitor
- Adjustable +4.5V or +4.75V
? Reset Pulse Width – 250 msec minimum
? No External Components
? Adjustable Watchdog Timer
- 150 msec, 600 msec or 1.2 sec
? Operating Voltage 4.0V to 5.5V
? Debounced Manual Reset Input for External
Override
Block Diagram
V CC
General Description
The TC1232 is a fully-integrated processor supervisor
that provides three important functions to safeguard
processor sanity: precision power on/off reset control,
watchdog timer and external reset override.
On power-up, the TC1232 holds the processor in the
reset state for a minimum of 250 msec after V CC is
within tolerance to ensure a stable system start-up.
Microprocessor sanity is monitored by the onboard
watchdog circuit. The microprocessor must provide a
periodic low-going signal on the ST input. Should the
processor fail to supply this signal within the selected
time-out period (150 msec, 600 msec or 1200 msec),
an out-of-control processor is indicated and the
TOL
Tolerance
Select
(5% or 10%)
+
+
–
RST
RST
TC1232 issues a processor reset as a result.
The outputs of the TC1232 are immediately driven
active when the PB input is brought low by an external
push button switch or other electronic signal. When
+
V REF
–
connected to a push button switch, the TC1232
provides contact debounce.
PB RST
Debounce
Reset
Generator
The TC1232 is packaged in a space-saving 8-Pin PDIP
or SOIC package, a 16-Pin SOIC (wide) package and
TD
Watchdog
Timebase
Select
Watchdog
Timer
ST
requires no external components.
Package Types
8-Pin PDIP
8-Pin SOIC
16-Pin SOIC (Wide)
PB RST 1
TD 2
TOL 3
GND 4
TC1232
8 V CC
7 ST
6 RST
5 RST
PB RST
TD
TOL
GND
1
2
3
4
TC1232
8
7
6
5
V CC
ST
RST
RST
NC
PB RST
NC
TD
NC
1
2
3
4
5
TC1232
16
15
14
13
12
NC
VCC
NC
ST
NC
TOL
NC
GND
6
7
8
11
10
9
RST
NC
RST
Device Features
Device
Type
RST pin
Pull-up Active
Resistor Level
RST pin
Active
Type
Level
Trip Points
(Max)
Minimum
Reset
Active Time
(ms)
WDI Input
Typical
Timeouts (ms)
MR
Input
TC1232
Open-drain
External
Low
Push-pull
High
4.75V
250
150, 600 or
Yes
or 4.5V
1200
? 2005 Microchip Technology Inc.
Preliminary
DS21370C-page 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| TC1232CPA | 制造商:Microchip Technology Inc 功能描述:MICROPROCESSOR MONITOR 1232 DIP8 |
| TC1232EOA | 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 |
| TC1232EOA | 制造商:Microchip Technology Inc 功能描述:MICROPROCESSOR MONITOR SMD 1232 |
| TC1232EOA713 | 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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