参数资料
| 型号： | CAT1832V-G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU 3.3V 8-SOIC |
| 标准包装： | 100 |
| 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/低有效 |
| 复位超时： | 可调节/可选择 |
| 电压 - 阀值： | 2.55V，2.88V |
| 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： | 管件 |
| 产品目录页面： | 806 (CN2011-ZH PDF) |
CAT1232LP, CAT1832
5 V and 3.3 V Supply Monitor, Watchdog Timer,
Manual Reset, with Active High & Low Resets
FEATURES
Selectable reset voltage tolerance
— CAT1232LP for 5 V supply
— CAT1832 for 3.3 V supply
Selectable watchdog period:
150 ms, 600 ms or 1.2 s
Two reset outputs
— Active high, push-pull reset output
— Active low, open-drain reset output
(CAT1232LP)
— Active low, push-pull reset output (CAT1832)
Debounced manual push-button reset
Compact SOIC and MSOP packages
APPLICATIONS
Microprocessor Systems
Portable Equipment
Controllers
Single Board Computers
Instrumentations
Telecommunications
FUNCTIONAL DIAGRAM
V CC
DESCRIPTION
ˉˉˉˉˉˉ
The CAT1232LP and CAT1832 microprocessor
supervisors can halt and restart a “hung-up” or
“stalled” microprocessor, restart a microprocessor
after a power failure, and debounce a manual/push-
button microprocessor reset switch. The devices are
drop in replacements for the Maxim/Dallas
Semiconductor DS1232LP and DS1832 supervisors
Precision reference and comparator circuits monitor
the 5 V or 3.3 V system power supply voltage, V CC .
During power-up or when the power supply falls
outside selectable tolerance limits, both the RESET
and RESET become active. After the power supply
voltage rises above the RESET threshold voltage, the
reset signals remain active for a minimum of 250ms,
allowing the power supply and system processor to
stabilize. The trip-point tolerance input, TOL, selects
the trip level tolerance to be either 5% or 10% for the
CAT1232LP 5 V supply and 10% or 20% for the
CAT1832 3.3 V supply.
Each device has a push-pull, active HIGH reset
output. The CAT1232LP also has an open drain,
active LOW reset output while the CAT1832 also has
a push-pull, active LOW reset output.
A debounced manual reset input activates the reset
outputs and holds them active for a minimum period of
250 ms after being released.
ˉˉ
Also included is a watchdog timer to reset a
microprocessor that has stopped due to a software or
hardware failure. Three watchdog time-out periods are
selectable: 150 ms, 600 ms and 1.2 s. If the ST input
is not strobed low before the watchdog time out period
expires, the reset signals become active for a
minimum of 250 ms.
TOL
V CC
Tolerance Selection
+
RESET
(CAT1232LP)
40k ?
Reference
–
RESET
PBRST
Push Button Debounce
RESET
TD
ST
? 2009 SCILLC. All rights reserved.
Watchdog Timebase Selection
Watchdog Transition Detector
1
Reset &
Watchdog Timer
(CAT1832)
Doc. No. MD-3018 Rev. F
Characteristics subject to change without notice
相关PDF资料 |
PDF描述 |
|---|---|
| CAT3200ZI-T3 | IC REG BST SWITCHD CAP ADJ 8MSOP |
| CAT6217-280TDGT3 | IC REG LDO 2.8V .15A TSOT-23-5 |
| CAT6218-280TDGT3 | IC REG LDO 2.8V .3A TSOT23-5 |
| CAT6219-330TDGT3 | IC REG LDO 3.3V .5A TSOT23-5 |
| CAT6221-MGTD-GT3 | IC REG LDO 2.8/1.8V .3A TSOT23-6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT1832V-GT3 | 功能描述:监控电路 3.3V Supply Vltg Sup 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 |
| CAT1832V-T3 | 功能描述:监控电路 3.3 V 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 |
| CAT1832Z | 功能描述:监控电路 3.3 V 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 |
| CAT1832ZG | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT1832Z-G | 功能描述:监控电路 Supervisor,3.3V 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 |
发布紧急采购，3分钟左右您将得到回复。