Features: ` Superior Upgrade for MAX690MAX695` Specified Over Temperature` Low Power Consumption (5 mW)` Precision Voltage Monitor` Reset Assertion Down to 1 V VCC` Low Switch On-Resistance 1.5 Normal,20 in Backup` High Current Drive (100 mA)` Watchdog Timer-100 ms, 1.6 s, or Adjustable` 600 nA S...
ADM695: Features: ` Superior Upgrade for MAX690MAX695` Specified Over Temperature` Low Power Consumption (5 mW)` Precision Voltage Monitor` Reset Assertion Down to 1 V VCC` Low Switch On-Resistance 1.5 Norm...
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The ADM690ADM695 family of supervisory circuits offers complete single chip solutions for power supply monitoring and battery control functions in microprocessor systems. These functions include mP reset, backup battery switchover, watchdog timer, CMOS RAM write protection, and power failure warning. The ADM690ADM695 complete family provides a variety of configurations to satisfy most microprocessor system requirements.
The ADM690ADM695 are available in 8-pin DIP packages and provide:
1. Power-on reset output during power-up, power-down and brownout conditions. The RESET output remains operational with VCC as low as 1 V.
2. Battery backup switching for CMOS RAM, CMOS microprocessor or other low power logic.
3. A reset pulse if the optional watchdog timer has not been toggled within a specified time.
4. A 1.3 V threshold detector for power fail warning, low battery detection, or to monitor a power supply other than +5 V.
The ADM690ADM695 are available in 16-pin DIP and small outline packages and provide three additional functions.
1. Write protection of CMOS RAM or EEPROM.
2. Adjustable reset and watchdog timeout periods.
3. Separate watchdog timeout, backup battery switchover, and low VCC status outputs.
The ADM690ADM695 family is fabricated using an advanced epitaxial CMOS process combining low power consumption (5 mW), extremely fast Chip Enable gating (5 ns) and high reliability. RESET assertion is guaranteed with VCC as low as 1 V. In addition, the power switching circuitry is designed for minimal voltage drop thereby permitting increased output current drive of up to 100 mA without the need for an external pass transistor .