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SP6339
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Signal Processing Technologies
SP6339 데이터시트 - Signal Processing Technologies
Signal Processing Technologies
DESCRIPTION
SP6339-SP6341 Triple µPower Supervisory Circuit Family is a family of microprocessor reset supervisory circuits with multiple reset voltages. The family provides low voltage monitoring ability for up to three supplies with two precision factory-set thresholds and one user defined custom threshold. These circuits perform a single function: if any of the input supply voltages drops below its associated threshold, reset outputs are asserted. Products in the family offer manual reset and watchdog functionalities. SP6339 and SP6341 are packaged in an 8-pin TSOT package. All devices are fully specified over -40oC to +85oC temperature range.
FEATURES
■ Low operating voltage of 1.6V
■ Low operating current of 20µA typical
■ Monitors up to 3 supplies simultaneously
■ Adjustable input monitors down to 0.5V
■ Reset asserted down to 0.9V
■ 2% accuracy over temperature range
■ Open Drain (OD) or CMOS RSTB output
■ 4 Reset Timeout Periods:
50mS, 100mS, 200mS, and 400mS
■ Watch Dog Timer Function -- WDI
■ Independent OD or CMOS Watchdog
Output (Active Low) -- WDOB
■ Manual Reset Input (Active Low) -- MRIB
■ 8 Pin TSOT package
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