CAT1232LP:Supervisor, 5.0 V
The CAT1232LP voltage supervisor 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 device is a drop in replacement for the Maxim/Dallas Semiconductor DS1232LP supervisor. Precision reference and comparator circuits monitor the 5V system power supply voltage, VCC. 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 250 ms, 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 5.0 V supply. The device has a push-pull, active HIGH reset output. The CAT1232LP also has an open drain, 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. 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 sec. 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.
技术特性
- Selectable reset voltage tolerance
- CAT1232LP for 5.0 V supply
- Selectable watchdog period: 150 ms, 600 ms or 1.2 sec
- Two reset outputs
- Active high, push-pull reset output
- Active low, open-drain reset output
- Debounced manual push-button reset
- Compact SOIC and MSOP packages
应用
- Microprocessor Systems
- Portable Equipment
- Controllers
- Single Board Computers
- Instrumentations
- Telecommunications
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封装图 PACKAGE DIMENSIONS
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订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| CAT1232LPL-G |
Active |
|
Supervisor, 5.0 V |
PDIP-8 |
646AA |
|
Tube |
50 |
$0.548 |
| CAT1232LPV-GT3 |
Active |
|
Supervisor, 5.0 V |
SOIC-8 |
751BD |
1 |
Tape and Reel |
3000 |
$0.528 |
| CAT1232LPW |
Last Shipments |
|
Supervisor, 5.0 V |
SOIC-16W |
751BH |
1 |
Tube |
47 |
|
| CAT1232LPZ-GT3 |
Active |
|
Supervisor, 5.0 V |
MSOP-8 |
846AD |
1 |
Tape and Reel |
3000 |
$0.568 |
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