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微处理器监控电路ADM696/ADM697数据表

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  • 上传时间:2021-10-31
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  • 标      签: ADM696 电路 处理器

资 源 简 介

The ADM696/ADM697 supervisory circuits offer complete single chip soluTIons for power supply monitoring and battery control funcTIons in microprocessor systems. These funcTIons include µP reset, backup-battery switchover, watchdog TImer, CMOS RAM write protection, and power failure warning. The ADM696/ADM697 are available in 16-pin DIP and small outline packages and provide the following functions: 1. Power-On Reset output during power-up, power-down and brownout conditions. The RESET voltage threshold is adjustable using an external voltage divider. The RESET output remains operational with VCC as low as 1 V. 2. A Reset pulse if the optional watchdog timer has not been toggled within specified time. 3. Separate watchdog time-out and low line status outputs. 4. Adjustable reset and watchdog timeout periods. 5. A 1.3 V threshold detector for power fail warning, low battery detection, or to monitor a power supply other than VCC. 6. Battery backup switching for CMOS RAM, CMOS microprocessor or other low power logic (ADM696)。 7. Write protection of CMOS RAM or EEPROM (ADM697)..
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