MAX691A, MAX693A, MAX800L, MAX800M 마이크로프로세서 감시 회로

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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 V_CC 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%.

주요기능

애플리케이션/용도

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 RESET-bar Assertion to V_CC = +1V
Voltage Monitor for Power-Fail or Low-Battery Warning
Power-Fail Accuracy Guaranteed to ±2% (MAX800L/M)
Available in 16-Pin Narrow SO and Plastic DIP Packages

	자동차 전자장치
	컴퓨터: 데스크톱, 워크스테이션, 서버
	컨트롤러
	중요 µP 모니터링
	인텔리전트 장비

Key Specifications: Battery Backup Circuits

Part Number

Reset Threshold Range (V)

Active-Low Reset Output

Active-High Reset Output

Features

RoHS Available

Industry Qualified

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX691A

3.3 to 5.5

Push-Pull

•	Adjustable Reset Input

•	Battery On

•	Chip Enable Gate

•

Low Line

•	Power Fail Comparator

•

Watchdog

Yes

MIL-STD-883B

Ceramic DIP/16
DICE SALES/0
PDIP/16
SOIC/16
TSSOP/16

-40 to +85
-55 to +125
0 to +70

$3.61 @ 1k

MAX693A

MIL-STD-883B

Ceramic DIP/16
DICE SALES/0
PDIP/16
SOIC/16
TSSOP/16

$3.61 @ 1k

MAX800

PDIP/16
SOIC/16
TSSOP/16

$3.88 @ 1k

See All Battery Backup Circuits (84)

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.