Casio SF-4600

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6-2. RAM: µPD43256G-101215LL (LSI 2)
A0 ~ A14 : Address input signal
IO0 ~ IO7: Data signal (Input/Output)
WE : Write enable signal
CS : Chip select signal
OE : Output enable signal
µPD3056G-007 (WE)
µPD3056G-007 (CS3)
6-4. LCD driver: NM 360