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Details, datasheet, quote on part number:HM51W16400BS6
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Datasheet text preview:
HM51W16400BS6 (1/2) IL08
C-MOS 16 M (4,194,304 x 4)-BIT DYNAMIC RAM
--TOP VIEW--
1 9 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 11 RAS CAS WE OE 5 23 4 22 I/O1 I/O2 I/O3 /O4 3 2 24 5 I 2
I
2 1 /O1 I/O 3
VDD (+3.3 V) V
GND 26 I 25 /O4 I/O
I
10 11 12 15 16 17
I
/O2 I/O 4
W
24 /O3 I/O
C
E IN 5
R
23 22
A
AS IN
O
18 29
AS IN 6
A
E IN
9 IN
A
8 1 6
11 IN 8
A
11
10 IN 9
A
19
A
8 IN 7 IN
A
0 IN 1
A
18 17
A
1 IN 10
A
6 IN 5 IN
A
2 IN 11
A
16 15
DD (+3.3 V)
A INPUT 0 - A11 O CAS RE WS A IE
:
3 IN 12 3 ND
4 IN
ADDRESS : COLUMN ADDRESS STROBE OUTPUT ENABLE : ROW ADDRESS STROBE : READ/WRITE ENABLE : INPUT/OUTPUT /O1 - I/O4 DATA
4
HM51W16400BS6 (2/2)
RAS 5 CAS 23 WE 4 OE 22
C RAS C NTROL O IRCUIT
C CAS C NTROL O IRCUIT
C WE C NTROL O IRCUIT
C OE C NTROL O IRCUIT
25
I/O4 BUFFER 256 K MEMORY ARRAY x 16 SENSE AMP. & I/O BUS x 17 COLUMN DECODER D& RIVER 256 K MEMORY ARRAY x 16 SENSE AMP. & I/O BUS x 17 D ROW ECODER & D RIVER D ROW ECODER & D RIVER 256 K MEMORY ARRAY x 16 I/O3 BUFFER SENSE AMP. & I/O BUS x 17 COLUMN DECODER D& RIVER I/O2 BUFFER 256 K MEMORY ARRAY x 16 I/O1 BUFFER SENSE AMP. & I/O BUS x 17
I/O4
24
I/O3
3
I/O2
2
I/O1
COLUMN ADDRESS BUFFER
ROW ADDRESS BUFFER
6, 8 - 12, 15 - 9, 21 A0 - A11
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