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MAX801M

Maxim Integrated Products
Part Number MAX801M
Manufacturer Maxim Integrated Products
Description 8-Pin uP Supervisory Circuits
Published Jan 16, 2007
Detailed Description 19-1086; Rev 1; 11/05 MAX801L/M/N, MAX808L/M/N 8-Pin µP Supervisory Circuits with ±1.5% Reset Accuracy ______________...
Datasheet PDF File MAX801M PDF File

MAX801M
MAX801M

Overview
19-1086; Rev 1; 11/05 MAX801L/M/N, MAX808L/M/N 8-Pin µP Supervisory Circuits with ±1.
5% Reset Accuracy _______________General Description The MAX801/MAX808 microprocessor (µP) supervisory circuits monitor and control the activities of +5V µPs by providing backup-battery switchover, low-line indication, and µP reset.
Additional features include a watchdog for the MAX801 and CMOS RAM write protection for the MAX808.
The MAX801/MAX808 offer a choice of reset-threshold voltage (denoted by suffix letter): 4.
675V (L), 4.
575V (N), and 4.
425V (M).
These devices are available in 8-pin DIP and SO packages.
________________________Applications Computers Controllers Intelligent Instruments Critical µP Power Monitoring Portable/Battery-Powered Equipment Embedded Systems Pin Configurations appear at end of data sheet.
__________Typical Operating Circuit +5V 0.
1μF 0.
1μF VCC OUT BATT 0.
1μF LOWLINE RESET MAX808 CE IN CE OUT GND POWER FOR μP CMOS RAM POWER NMI RESET µP SYSTEM FROM I/O SYSTEM OR ADDRESS DECODER TO CMOS RAM ____________________________Features ♦ Precision Voltage Monitoring, ±1.
5% Reset Accuracy ♦ 200ms Power-OK/Reset Time Delay ♦ RESET Output (MAX808) RESET and RESET Outputs (MAX801) ♦ Watchdog Timer (MAX801) ♦ On-Board Gating of Chip-Enable Signals (MAX808): Memory Write-Cycle Completion 3ns CE Gate Propagation Delay ♦ 1µA Standby Current ♦ Power Switching: 250mA in VCC Mode 20mA in Battery-Backup Mode ♦ MaxCap™/SuperCap™ Compatible ♦ RESET Guaranteed Valid to VCC = 1V ♦ Low-Line Threshold 52mV Above Reset Threshold MaxCap is a trademark of The Carborundum Corp.
SuperCap is a trademark of Baknor Industries.
______________Ordering Information PART* TEMP RANGE PIN-PACKAGE MAX801_CPA 0°C to +70°C 8 Plastic DIP MAX801_CSA 0°C to +70°C 8 SO MAX801_EPA -40°C to +85°C 8 Plastic DIP MAX801_ESA -40°C to +85°C 8 SO MAX801_MJA -55°C to +125°C 8 CERDIP** MAX808_CPA 0°C to +70°C 8 Plastic DIP MAX808_CSA 0°C to +70°C 8 SO MAX808_EPA -40°C to +...


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