64
IC304 MSM51V1816
IC402, 403 MT48LC1M16A1TG
50
47
35
36
33
34
26
32
27
16
19
15
18
45
40
44
41
49
46
1
6
11
17
20
25
V
SS
OE
UCAS
LCAS
NC
NC
DQ9
DQ12
V
SS
DQ13
DQ16
V
SS
V
CC
NC
NC
RAS
WE
NC
NC
NC
V
CC
V
DD
7
10
DQ8
DQ5
2
5
DQ4
DQ1
21
24
A3
A0
ON CHIP
V
BB
GENERATOR
COLUMN
ADDRESS
BUFFERS
ROW
ADDRESS
BUFFERS
INTERNAL
ADDRESS
COUNTER
TIMING
GENERATOR
LOW
DECODERS
WORD
DRIVERS
MEMORY
CELIS
I/O
SELECTOR
INPUT
BUFFERS
INPUT
BUFFERS
OUTPUT
BUFFERS
OUTPUT
BUFFERS
SENSE
AMPLIFIERS
COLUMN
DECODERS
I/O
CONT-
ROLLER
I/O
CONT-
ROLLER
REFRESH
CONTROL
CLOCK
50
47
44
41
38
48
45
42
39
49
46
43
40
33
34
35
36
37
3
6
9
12
15
18
2
5
8
11
14
17
1
4
7
10
13
16
25
19
A9
NC
CKE
CLK
DQMH
NC
V
DD
Q
DQ8
DQ9
V
SS
Q
DQ10
DQ11
V
DD
Q
DQ12
V
DD
Q
V
SS
Q
DQ14
DQ15
V
SS
V
SS
A4
V
DD
BA
CS#
RAS#
CAS#
WE#
DQML
V
DD
Q
DQ7
DQ6
V
SS
Q
DQ5
DQ4
V
DD
Q
DQ3
DQ2
V
SS
Q
DQ1
DQ0
V
DD
32
27
20
24
A3
A0
26
ROW-ADDRESS
LATCH
ROW
DECORDER
BANK 1
MEMORY ARRAY
(2.48 x 256 x 16)
2.048
256 (x16)
SENSE AMPLIFIERS
I/O GATING
DOM MASK LOGIC
SENSE AMPLIFIERS
I/O GATING
DOM MASK LOGIC
BURST
COUNTER
COLUMN-
ADDRESS
LATCH
COLUMN-
ADDRESS
BUFFER
COLUMN
DECODER
ROW-ADDRESS
LATCH
ROW
DECORDER
BANK 0
MEMORY ARRAY
(2.48 x 256 x 16)
DATA
INPUT
REGISTER
DATA
OUTPUT
REGISTER
REFRESH
COUNTROLLER
REFRESH
COUNTER
ROW-
ADDRESS
MUX
ADDRESS REGISTER
CONTROL
LOGIC
MODE
REGISTER
COMMAND
DECODER
2.048
256 (x16)
256
256
IC204 IDT71V016S20PHAU
43
40
37
34
31
23
44
41
38
35
32
24
42
39
36
33
25
26
27
28
29
30
3
6
9
12
15
18
2
5
8
11
14
17
1
4
7
10
13
16
22
21
20
19
A10
A9
A8
NC
I/O 8
I/O 9
I/O 10
V 11
I/O O
V
DD
I/O 12
I/O13
I/O14
I/O15
BLE
BHE
OE
A7
A6
A5
NC
A11
NC
A12
A13
A14
A15
WE
I/O 7
I/O 6
I/O 5
I/O 4
V
SS
I/O O
I/O 3
I/O 2
I/O 1
I/O 0
CS
A0
A1
A2
A3
A4
8
8
16
CHIP ENABLE
BUFFER
ADDRESS BUFFER
WHITE ENABLE
BUFFER
LOW BYTE
I/O BUFFER
HIGH BYTE
I/O BUFFER
OUTPUT
ENABLE BUFFER
BYTE ENABLE
BUFFER
SENSE
AND
WRITE
DRIVERS
64K X 16
MEMORY
ARREY
ROW/COLUMN
DECODERS
