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MC146818 - REAL-TIME CLOCK PLUS RAM

Key Features

  • a complete time-of-day clock with alarm and one hundred year calendar, a programmable periodic inter- rupt and square-wave generator, and 50 bytes of low-power static RAM. The MC146818 uses high-speed CMOS technology to interface I with 1 MHz processor buses, while consuming very little power. The Real-Time Clock plus RAM has two distinct uses. First, it is designed as a battery powered CMOS part (in an otherwise.

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Full PDF Text Transcription (Reference)

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® MOTOROLA MC146818 Advance Information CMOS REAL-TIME CLOCK PLUS RAM (RTC) (HIGH-PERFORMANCE SILICON-GATE COMPLEMENTARY MOS) The MC146818 Real-Time Clock plus RAM is a peripheral device which includes the unique MOTEL concept for use with various microprocessors, microcomputers, and larger computers. This part REAL-TIME CLOCK PLUS RAM combines three unique features: a complete time-of-day clock with alarm and one hundred year calendar, a programmable periodic inter- rupt and square-wave generator, and 50 bytes of low-power static RAM. The MC146818 uses high-speed CMOS technology to interface I with 1 MHz processor buses, while consuming very little power. The Real-Time Clock plus RAM has two distinct uses.