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| Datasheet File OCR Text: |
| ********** C-MOS 4M (1,048,576X4)-BIT DYNAMIC RAM - TOP VIEW 9 10 11 12 14 15 16 17 18 5 MB814400A-70PFTN IL22 DQ1 1 DQ2 2 WE 3 RAS 4 A9 5 GND 26 25 DQ4 24 DQ3 23 CAS 22 OE A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 DQ1 DQ2 DQ3 DQ4 1 2 24 25 RAS CAS WE A0 9 A1 10 A2 11 A3 12 13 VDD(+5V) 18 A8 17 A7 16 A6 15 A5 14 A4 4 23 3 22 A0-9 CAS DQ1-4 OE RAS WE ; ADDRESS INPUTS ; COLUMN ADDRESS STROBE ; DATA INPUTS/OUTPUTS ; OUTPUT ENABLE ; ROW ADDRESS STROBE ; WRITE ENABLE RAS 4 CLOCK GEN. No1 CLOCK GEN. No2 SUBSTRATE BIAS GEN. CAS 3 WE MODE CONTROL ADDRESS BUFFER 5, 9-12, 14-18 A0-A9 DATA INPUT BUFFER COLUMN DECODER SENSE AMP. I/O GATE 1, 2, 24, 25 DQ1-DQ4 PREDECODER ROW DECODER w w w .d ee sh ta a REFRESH ADDRESS COUNTER u. t4 om c 4,194,304-BIT MEMORY CELL DATA OUTPUT BUFFER 22 OE www..com 23 WRITE CLOCK GEN. OE |
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