PHILIPS System reset with built-in watchdog timer User Guide Data Sheet
Summary
This reliable integrated circuit is a system reset generator featuring an integrated watchdog timer and accurate power monitoring capabilities. Designed to maintain the stability of complex electronic systems, it detects critical events like momentary power interruptions or voltage sags, asserting a vital reset signal when microprocessors malfunction. The accompanying manual provides detailed specifications on its operation in diverse applications, making it essential for hardware designers building robust microcomputer and logic control systems requiring high uptime assurance.
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INTEGRATED CIRCUITS
NE56605-42 System reset with built-in watchdog timer
Product data 2001 Aug 22 Supersedes data of 2001 Apr 24 File under Integrated Circuits, Standard Analog
Page Summary Contents For PHILIPS System reset with built-in watchdog timer User Guide Data Sheet
Manual Details
| Brand | Philips |
|---|---|
| Pages | 16 |
| File Size | 178.96 KB |
| Published | July 16, 2026 |
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Frequently Asked Questions
What conditions trigger a reset signal from this device?
It triggers during momentary power interruptions or whenever the supply voltage sags down to intolerable levels, typically detected at 4.2 V.
How can I change the watchdog timer's operational time or sensitivity?
Timing is programmable using an external capacitor; the detection threshold (sensitivity) can be adjusted by connecting pin 'S'.
What does physical connection to Pin WD do?
The watchdog timer is enabled when this pin is unconnected, but it must be grounded (connected to GND) if you wish to disable the watchdog function.