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UPD43256B Datasheet(PDF) 7 Page - NEC |
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UPD43256B Datasheet(HTML) 7 Page - NEC |
7 / 28 page 7 μPD43256B Data Sheet M10770EJEV0DS Block Diagram Address buffer Memory cell array 262,144 bits Input data controller A0 A14 I/O8 Sense amplifier / Switching circuit Column decoder /WE I/O1 VCC GND /CS /OE Address buffer Row decoder Output data controller Truth Table /CS /OE /WE Mode I/O Supply current H × × Not selected High impedance ISB L H H Output disable ICCA L × L Write DIN L L H Read DOUT Remark × : VIH or VIL |
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