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Part Number: ASM1832
Description: The ASM1832 is a fully integrated microprocessor supervisor. It can halt and restart a "hung-up" microprocessor, res...
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ASM1832
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DataSheet
General Description
ASM1832 General Description
The ASM1832 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. RESET and RESET outputs are push-pull.
A precision temperature-compensated reference and comparator circuits monitor the 3.3V, 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 10% or 20%.
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 PDIP, 8-pin SO and compact 8-pin MicroSO packages.
ASM1832 Maximum Ratings
| Parameter | Min | Max | Unit |
| Voltage on VCC | -0.5 | 7 | V |
| Voltage on ST , TD | -0.5 | VCC + 0.5 | V |
| Voltage on PBRST , RESET, RESET | -0.5 | VCC + 0.5 | V |
| Operating Temperature Range | -40 | +85 | °C |
| Soldering Temperature (for 10 sec) | +260 | °C | |
| Storage Temperature | -55 | +125 | °C |
| ESD rating HBM MM |
2 200 |
KV V |
ASM1832 Features
· 3.3V supply monitor
· Push-pull output
· Selectable watchdog period
· Debounce manual push-button reset input
· Power-up, power-down and brown out detection
· 250ms minimum reset time
· Active LOW and HIGH reset signal
· Selectable trip point tolerance: 10% or 20%
· Low-cost 8-pin DIP/SO and 8-pin Micro SO packages
· Wide operating temperature -40°C to +85°C
· Push-pull output
· Selectable watchdog period
· Debounce manual push-button reset input
· Power-up, power-down and brown out detection
· 250ms minimum reset time
· Active LOW and HIGH reset signal
· Selectable trip point tolerance: 10% or 20%
· Low-cost 8-pin DIP/SO and 8-pin Micro SO packages
· Wide operating temperature -40°C to +85°C
ASM1832 Typical Application
· Microprocessor systems
· Computers
· Controllers
· Portable instruments
· Automotive systems
· Computers
· Controllers
· Portable instruments
· Automotive systems
ASM1832 Connection Diagram
ASM1832
PDF/DataSheet Download
- Datasheet: ASM1832
- File Size: 265813 KB
- Manufacturer: ALSC [Alliance Semiconductor Corporation]
- Click here to Download
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