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參數(shù)資料
| 型號(hào)： | ASM1232LPU-T |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類(lèi)： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大?。?/td> | 377K |
| 代理商： | ASM1232LPU-T |
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ASM1232LP/LPS
5V μP Power Supply Monitor
and Reset Circuit
2010 SCILLC. All rights reserved.
Publication Order Number:
JANUARY 2010 – Rev. 2
ASM1232/D
General Description
The ASM1232LP/LPS is a fully integrated microprocessor
Supervisor. It can halt and restart a “hung-up”
microprocessor, restart a microprocessor after a power
failure. It has a watchdog timer and external reset
override.
A precision temperature-compensated reference and
comparator circuits monitor the 5V, VCC input voltage
status. During power-up or when the VCC power supply
falls outside selectable tolerance limits, both RESET and
RESET become active. When VCC rises above the
threshold voltage, the reset signals remain active for an
additional 250ms minimum, allowing the power supply
and system microprocessor to stabilize. The trip point
tolerance signal, TOL, selects the trip level tolerance to
be either 5% or 10%.
Each device has both a push-pull, active HIGH reset
output and an open drain active LOW reset output. A
debounced manual reset input, PBRST, activates the
reset outputs for a minimum period of 250ms.
There is a watchdog timer to stop and restart a
microprocessor
that is “hung-up”. The watchdog timeouts
periods are selectable: 150ms, 610ms and 1200ms. If the
ST input is not strobed LOW before the time-out period
expires, a reset is generated.
Devices are available in 8-pin DIP, 16-pin SO and
compact 8-pin MicroSO packages.
Key Features
5V supply monitor
Selectable watchdog period
Debounce manual push-button reset input
Precision temperature-compensated voltage
reference and comparator.
Power-up, power-down and brown out detection
250ms minimum reset time
Active LOW open drain reset output and active HIGH
push-pull output
Selectable trip point tolerance: 5% or 10%
Low-cost surface mount packages: 8-pin/16-pin SO,
8-pin DIP and 8-pin Micro SO packages
Wide operating temperature -40°C to +85°C (N
suffixed devices)
Applications
Microprocessor Systems
Computers
Controllers
Portable Equipment
Intelligent Instruments
Automotive Systems
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ASM1233A | 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Low Power, 3.3V, uP Reset, Active LOW, Open-Drain Output |
| ASM1233A-10 | 制造商:PULSECORE 制造商全稱(chēng):PulseCore Semiconductor 功能描述:Low Power, 5V/3.3V, μP Reset, Active LOW, Open-Drain Output |
| ASM1233A-15 | 制造商:PULSECORE 制造商全稱(chēng):PulseCore Semiconductor 功能描述:Low Power, 5V/3.3V, μP Reset, Active LOW, Open-Drain Output |
| ASM1233A-5 | 制造商:PULSECORE 制造商全稱(chēng):PulseCore Semiconductor 功能描述:Low Power, 5V/3.3V, μP Reset, Active LOW, Open-Drain Output |
| ASM1233AZ-10 | 制造商:PULSECORE 制造商全稱(chēng):PulseCore Semiconductor 功能描述:Low Power, 5V/3.3V, μP Reset, Active LOW, Open-Drain Output |
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