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    uCOM-4

    Abstract: UPD556B PC258 uCOM-4 instruction set UPD656
    Text: fiPD556B v / NEC NEC Electronics USA Inc. Microcomputer Division fiCOM-4 4-BIT SINGLE CHIP ROM-LESS EVALUATION CHIP DESCRIPTION The ;uPD656B is the ROM-less evaluation chip fo r the ;uCOM-4 4-bit single chip m icro­ com puter fa m ily . The /liPD556B is used in con ju nction w ith an external 2048 x 8-bit


    OCR Scan     		PDF uPD556B uPD656B PD556B LM27S2S DCH157M //PD42S18160, uCOM-4 PC258 uCOM-4 instruction set UPD656