-TOP VIEW17 UPD4218160LE-60(1/2) IL16 I/O1 I/O2 I/O3 I/O4 I/

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***** C-MOS 16M(1,048,576x16)-BIT DRAM
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UPD4218160LE-60(1/2) IL16
I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 I/O8
I/O16 I/O15 I/O14 I/O13 I/O12 I/O11 I/O10 I/O9 LCAS UCAS
UCAS LCAS
I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 I/O8 I/O9 I/O10 I/O11 I/O12 I/O13 I/O14 I/O15 I/O16
INPUT A0-A9 UCAS LCAS
ADDRESS INPUTS ADDRESS STROBE COLUMN ADDRESS STROBE(UPPER) COLUMN ADDRESS STROBE(LOWER) WRITE ENABLE OUTPUT ENABLE
INPUT/OUTPUT I/O1-I/O16 DATA INPUTS/OUTPUTS
UPD4218160LE-60(2/2) LCAS UCAS LOWER BYTE CONTROL UPPER BYTE CONTROL before COUNTER DATA INPUT BUFFER DATA OUTPUT BUFFER
CLOCK GENERATOR
2-5, 7-10 I/O1-I/O8 (LOWER BYTE)
1,6,21 22,37,42
DECODER
MEMORY CELL ARRAY (1024 1024
17-20, 23-28 ADDRESS
ADDRESS BUFFER COLUMN ADDRESS BUFFER
DATA OUTPUT BUFFER SENSE AMPLIFIER
33-36, 38-41 I/O9-I/O16 (UPPER BYTE)
COLUMN DECODER
DATA INPUT BUFFER

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