ADM6321BZ25ARJZ-R7

Processor Supervisor 2.5V 1V to 5.5V 5Pin SOT-23 T/R

Product Details

The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ADM6321/ADM6322 are supervisory circuits that monitor power supply voltage levels and code execution integrity in microprocessor-based systems. As well as providing power-on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by an external push button through a manual reset input. The seven devices feature different combinations of watchdog input, manual reset input, and output stage configuration.

Each device is available in a choice of 26 reset threshold options ranging from 2.5 V to 5 V in 100 mV increments. There are also four reset timeout options of 1 ms, 20 ms, 140 ms, and 1120 ms minimum and four watchdog timeout options of 6.3 ms, 102 ms, 1600 ms, and 25.6 sec typical.

The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ADM6321/ADM6322 are available in 5-lead SOT-23 packages and typically consume only 3 μA, making them suitable for use in low power portable applications.

Applications

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Microprocessor systems

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Computers

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Controllers

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Intelligent instruments

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Portable equipment

### Features and Benefits

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26 reset threshold options

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2.5 V to 5 V in 100 mV increments

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4 reset timeout options

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1 ms, 20 ms, 140 ms, and 1120 ms minimum

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4 watchdog timeout options

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6.3 ms, 102 ms, 1600 ms, and 25.6 sec typical

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Manual reset input

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Reset output stages

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Push-pull active low

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Open-drain active low

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Push-pull active high

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Low power consumption: 5 μA

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Guaranteed reset output valid to VCC = 1 V

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Power supply glitch immunity

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Specified over industrial temperature range

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5-lead SOT-23 package