MAX699EPA+

MAXIM INTEGRATED PRODUCTS  MAX699EPA+  芯片, 微处理器监控器, 5.5V, DIP-8

The is a low cost, power-on reset and watchdog controller in 8 pin DIP package. The device monitors +5V supply in microprocessor µP and digital systems. It supplies a RESET complementary pulse of at least 140ms duration on power-up, power-down and during low voltage brownout conditions. Circuit reliability is increased at reduced cost by eliminating all external components and adjustments. It also provides a watchdog input to monitor microprocessor activity. The RESET complementary output goes low if the watchdog input WDI is not toggled within 1 second. The watchdog feature can be disabled by leaving WDI open. Typical applications include intelligent instruments, controllers, computers and critical & µP power monitoring.

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Supply voltage range is 3V to 5.5V

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Operating temperature range from -40°C to 85°C

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Precision voltage monitor

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Power-OK/reset time delay

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Minimum component count

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Supply current is 5mA