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DS1232
MicroMonitor Chip


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Description
FULL DATA SHEET (PDF, 140kB)
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The DS1232 MicroMonitor™ Chip monitors three vital conditions for a microprocessor: power supply, software execution, and external override. First, a precision temperature-compensated reference and comparator circuit monitors the status of VCC. When an out-of-tolerance condition occurs, an internal power fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signals are kept in the active state for a minimum of 250ms to allow the power supply and processor to stabilize.

Key Features
  • Halts and restarts an out-of-control microprocessor
  • Holds microprocessor in check during power transients
  • Automatically restarts microprocessor after power failure
  • Monitors pushbutton for external override
  • Accurate 5% or 10% microprocessor power supply monitoring
  • Eliminates the need for discrete components
  • Space-saving, 8-pin mini-DIP
  • Optional 16-pin SOIC surface mount package
  • Industrial temperature -40°C to +85°C available, designated N

Key Specifications:   Supervisors (1 Monitored Voltage)
Part Number Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Nom. Watchdog Timeout Range Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Price**
DS1232  3.3 to 5.5 Open Drain Push-Pull 85ms to 300ms Input (WDI) 1s to 2s
<1s
Manual Reset 2.5 2000 $1.17 @ 1k
See All Supervisors (1 Monitored Voltage) (268)
Notes:
**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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    1999-11-18
    This page last modified: 2007-02-01



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