MAX801M
MAX801M is 8-Pin uP Supervisory Circuits manufactured by Maxim Integrated.
- Part of the MAX801L comparator family.
- Part of the MAX801L comparator family.
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 puters
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 pletion 3ns CE Gate Propagation Delay
- 1µA Standby Current
- Power Switching: 250m A in VCC Mode 20m A in Battery-Backup Mode
- Max Cap™/Super Cap™ patible
- RESET Guaranteed Valid to VCC = 1V
- Low-Line Threshold 52m V Above Reset Threshold
Max Cap is a trademark of The Carborundum Corp. Super Cap is a trademark of Baknor Industries.
______________Ordering Information
PART-
TEMP RANGE PIN-PACKAGE
MAX801_CPA
0°C to...
