Monolog - Digital Board

Digital Board

The digital board contains 7 Integrated Circuits as follows ;

U1 = M50734-SP10 Mitsubishi Microprocessor U2 = 74HC373P address latch U3 = CD4060BCN 14-bit asynchronous binary counter U4 = 74HC139N Address decoder U5 = Static RAM (130 kB) U6 = 27C256BQ EPROM U7 = Static RAM (32 kB)

In addition to these components are the reverse battery protection diode associated timing circuitry for the Processor and CMOS divider IC.

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