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Details, datasheet, quote on part number:HM62W1664HJP-35
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Datasheet text preview:
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C-MOS 2M(65,536x16)-BIT STATIC RAM
-TOP VIEW-
HM62W1664HJP-35(1/3) IL08
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
V DD (+3.3V) GND GND V DD (+3.3V)
NC
NC
NC
44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
(V PIN No. 1 2 3 4 5 6 7 8 9 10 11 I/O I I I I I I I/O I/O I/O I/O SIGNAL A4 A3 A2 A1 A0 CS I/O1 I/O2 I/O3 I/O4 V DD PIN No. 12 13 14 15 16 17 18 19 20 21 22 I/O I/O I/O I/O I/O I I I I I SIGNAL GND I/O5 I/O6 I/O7 I/O8 WE A15 A14 A13 A12 NC PIN No. 23 24 25 26 27 28 29 30 31 32 33 I/O I I I I I/O I/O I/O I/O SIGNAL NC A11 A10 A9 A8 NC I/O9 I/O10 I/O11 I/O12 V DD PIN No. 34 35 36 37 38 39 40 41 42 43 44 I/O I/O I/O I/O I/O I I I I I I
DD
=+3.3V)
SIGNAL GND I/O13 I/O14 I/O15 I/O16 LB UB OE A7 A6 A5
HM62W1664HJP-35(2/3)
5 4 3 2 1 44 43 42 27 26 25 24 21 20 19 18
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15
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
7 8 9 10 13 14 15 16 29 30 31 32 35 36 37 38
INPUT A0-A15 CS LB UB WE OE
;ADDRESS DATA INPUTS ;CHIP SELECT ;BYTE SELECT(LOW BYTE) ;BYTE SELECT(UP BYTE) ;WRITE ENABLE INPUT ;OUTPUT ENABLE INPUT
INPUT/OUTPUT I/O1-I/O8 ;DATA INPUTS/OUTPUTS(LOW BYTE) I/O9-I/O16 ;DATA INPUTS/OUTPUTS(UP BYTE)
6 CS 39 LB 40 UB WE OE 17 41
CS 1 0 0 0 0 0 0 0 0 0 0 1 X HI-Z
OE X 1 0 0 0 0 X X X X
WE X 1 1 1 1 1 0 0 0 0
LB X X 0 0 1 1 0 0 1 1
UB X X 0 1 0 1 0 1 0 1
I/O1-I/O8 (LOW BYTE) HI-Z HI-Z D OUT D OUT HI-Z HI-Z D IN D IN HI-Z HI-Z
I/O9-I/O16 (UP BYTE) HI-Z HI-Z D OUT HI-Z D OUT HI-Z D IN HI-Z D IN HI-Z
MODE NON SELECT READ(LOW&UP) READ(LOW) READ(UP) WRITE(LOW&UP) WRITE(LOW) WRITE(UP) -
;LOW LEVEL ;HIGH LEVEL ;DON'T CARE ;HIGH IMPEDANCE
HM62W1664HJP-35(3/3)
1 A4 2 A3 3 A2 4 A1 5 A0 42 A7 43 A6 44 A5
ROW DECODER
MEMORY MATRIX 256 ROWS X 256X16 COLUMNS
CS 7 I/O1 -16 I/O8 29 I/O9 -38 I/O16 21 24 25 18 19 26 27 20 A12 A11 A10 A15 A14 A13 A9 A8 17 WE 6 CS 39 LB 40 UB 41 OE CS
COLUMN I/O
INPUT DATA CONTROL
COLUMN DECODER
CS
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