MAX820 Datasheet - Maxim

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MAX820 Microprocessor and Non-Volatile Memory Supervisory Circuits

19-0147; Rev.2; 6/98 Microprocessor and Non-Volatile Memory Supervisory Circuits General .
The MAX792/MAX820 microprocessor (µP) supervisory circuits provide the most functions for power-supply and watchdog monitoring in systems without batt.

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Datasheet Details

Part number:

MAX820

Manufacturer:

Maxim

File Size:

315.68 KB

Description:

Microprocessor and Non-Volatile Memory Supervisory Circuits

Features

* include the following: 1) µP reset: Assertion of RESET and RESET outputs during power-up, power-down, and brownout conditions. RESET is guaranteed valid for VCC down to 1V. 2) Manual-reset input. 3) Two-stage power-fail warning: A separate low-line comparator compares VCC to a preset threshold 120mV

Applications

* Computers Controllers Intelligent Instruments Critical µP Power Monitoring Typical Operating Circuit 3 VCC 4 CE OUT RESET IN/INT 0.1µF 13 VCC VCC µP MAX792 5 LLIN/ REFOUT CE IN OVO LOW LINE 7 8 OVI SWT GND 12 RESET MR 14 6 10 1 9 ADDRESS DECODER RAM A0-A15 NMI RESET GND _____________________

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MAX820 Microprocessor and Non-Volatile Memory Supervisory Circuits Maxim

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