The MAX691A/MAX693A/MAX800L/MAX800M microprocessor (µP) supervisory circuits are pin-compatible upgrades to the MAX691, MAX693, and MAX695. They improve performance with 30µA supply current, 200ms typ reset active delay on power-up, and 6ns chip-enable propagation delay. Features include write protection of CMOS RAM or EEPROM, separate watchdog outputs, backup-battery switchover, and a RESET-bar output that is valid with VCC down to 1V. The MAX691A/MAX800L have a 4.65V typical reset-threshold voltage, and the MAX693A/MAX800M's reset threshold is 4.4V typical. The MAX800L/MAX800M guarantee power-fail accuracies to ±2%.
Key Features
Applications/Uses
200ms Power-OK/Reset Timeout Period
1µA Standby Current, 30µA Operating Current
On-Board Gating of Chip-Enable Signals, 10ns max Delay
MaxCap® or SuperCap Compatible
Guaranteed Active-Low RESET Assertion to VCC = +1V
Voltage Monitor for Power-Fail or Low-Battery Warning
Power-Fail Accuracy Guaranteed to ±2% (MAX800L/M)
Available in 16-Pin Narrow SO, Plastic DIP, and TSSOP Packages
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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