MM58174A Microprocessor-Compatible Real-Time Clock
May 1991
MM58174A Microprocessor-Compatible Real-Time Clock
General Description
The MM58174A is a low-threshold metal-gate
CMOS circuit that functions as a real-time clock and calendar in bus-oriented microprocessor systems The device includes an interrupt timer which may be programmed to one of three times Timekeeping is maintained down to 2 2V to allow low power standby battery operation The timebase is generated from a 32768 Hz crystal-controlled oscillator
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TTL compatible Low power standby operation (2 2V 10 mA) Low cost internally biased oscillator Low cost 16-pin dual-in-line package Available for commercial and military te...