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Details, datasheet, quote on part number:KM416C256ALJ-7
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Datasheet text preview:
C ********** -TOP VIEW-
KM416C256ALJ-7(1/2) I L00
-MOS 4M (256K X 16)-BIT DYNAMIC RAM WITH FAST PAGE MODE
16
D
2V 1 VDD(+5V) Q1 I/O 3
GND 40 D 3 39 Q16 I/O
A0 A1 A2 A3 A4 A5 A6 A7 R8
DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 D Q9 DQ10
3 2 4 5 7 8 9 1 30 31 32 33 34 36 37 38 9
17 18 29
DQ2 I/O 4 DQ3 I/O 5 DQ4 I/O 6 D 7 NDD(+5V) Q5 I/O 8 DQ6 I/O 9 DQ7 I/O 1 DQ8 I/O 10 W 11 NC 12 NC
IN
38 DQ15 I/O 37 DQ14 I/O 36 DQ13 I/O ND 35 D 34 Q12 I/O
22 23 24 25 16
24
33 DQ11 I/O 32 DQ10 I/O 31 DQ9 I/O G C 20 L 29 CAS IN
L AS UCAS CAS
DQ11 DQ12 DQ13 DQ14 DQ15 Q16
29 8
W
OE 27
13
28 UCAS IN 27 OE IN 26 A8 IN 25 A7 IN 24 A6 IN 23 A5 IN 22 A4 IN
DD(+5V)
13
RAS IN 14 A 15 V C 0 IN 16 A1 IN 17 A2 IN 18 A3 IN 29 0
ND 1
A0 - A8 U RAS L CAS W AS C O DE Q1 - DQ16
; ; ; ; ; ; ;
ADDRESS INPUTS ROW ADDRESS STROBE INPUT UPPER COLUMN ADDRESS STROBE INPUT LOWER COLUMN ADDRESS STROBE INPUT READ / WRITE INPUT DATA OUTPUT ENABLE INPUT DATA INPUTS / OUTPUTS
KM416C256ALJ-7(2/2) RAS 1 0 0 0 0 0 0 0 0 0 1 X H I-Z ; ; ; ; LCAS 1 1 0 1 0 0 1 0 0 UCAS 1 1 1 0 0 1 0 0 0 W 1 1 1 1 1 0 0 0 1 OE 1 1 0 0 0 1 1 1 1 DQ1 - DQ8 DQ9 - DQ16 S STATE HI-Z RTANDBY HI-Z D I-Z HI-Z L EFRESH Q-OUT H D I-Z OWER BYTE READ DQ-OUT UPPER BYTE READ D I-Z D -OUT Q Q-OUT X WORD READ Q IN D LOWER BYTE WRITE DQ-IN UPPER BYTE WRITE DX H -IN Q H -IN Q WORD WRITE I-Z I-Z
LOW LEVEL HIGH LEVEL DON'T CARE HIGH IMPEDANCE
LRAS UCAS CAS W
2 14 29 18 3
CONTROL C LOCKS
VDD 1, 6, 20
GND 21, 35, 40
VBB GENERATOR
DOWER L ATA IN BUFFER
2-5 7 - 10 DQ1 - DQ8
C EFRESH R ONTROL
ROW DECODER
DLOWER ATA OUT BUFFER SENSE AMPS & IO
OE
C EFRESH R OUNTER MEMORY ARRAY 262, 144X16 CELLS ROW ADDRESS BUFFER
16 - 19 22 - 26 A0 - A8
D PPER U ATA IN BUFFER
31 - 34 36 - 39 DQ9 - DQ16
COL ADDRESS BUFFER
D OLUMN C ECODER
D UPPER ATA OUT BUFFER
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