MAX693ACPE Datasheet

Microprocessor Supervisory Circuits


General Description
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 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%.

♦ 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 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 and Plastic DIP Packages

  Intelligent Instruments
  Automotive Systems
  Critical µP Power Monitoring




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Manufacturer information


Maxim Integrated provides ease of design, and speeds time to market, through analog integration. The company's analog ICs offer extra features and functionality carefully designed to streamline circuit and simplify design. Look to Maxim for solutions for consumer electronics, personal computers and peripherals, mobile devices, wireless and fiber communications, test equipment, instrumentation, video displays, and automotive applications. Maxim’s analog and mixed-signal solutions include data converters, interface circuits, power, RF wireless circuits, clocks and oscillators, microcontrollers (MCUs), operational amplifiers (op amps), and sensors.

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