Sony BVP-550 Maintenance Manual page 804

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HM53461JP-12(HITACHI)(ACCESS TIME=120ns)PLCC
C-MOS 64K WORD x 4 BIT MULTI PORT RAM
—TOP VIEW—
1 GND 24
2 23
22
3
21
4
20
5
6 19
18
7
17
8
9 16
10 15
11 14
12 V 13
CC (+5V)
17 5
A0 I/O1
16 6
A0-A7
A1 I/O2
15 19 CAS
A2 I/O3
DT/OE
14 20
A3 I/O4
I/O1-I/O4
11 2
RAS
A4 SI/O1
10 3
SC
A5 SI/O2
SI/O1-SI/O4
9 22
A6 SI/O3
SOE
13 23
A7 SI/O4
WE
8
RAS
18
CAS
7
WE
4
DT/OE
21
SOE
1
WRITE MASK
GENERATOR
7 WE CLOCK
WE
GENERATOR
18
CAS CLOCK
CAS
GENERATOR
8
RAS CLOCK
RAS
GENERATOR
13-17 9-11
A0-A7
X ADDRESS
BUFFER
Y ADDRESS
BUFFER
REFRESH ADDRESS
COUNTER
8
18
RAS
CAS
6-4
PIN PIN
I/O SIGNAL I/O SIGNAL
No. No.
1 — SC 13 I A7
2 I/O SI/O1 14 I A3
3 I/O SI/O2 15 I A2
4 — DT/OE 16 I A1
5 I/O I/O1 17 I A0
6 I/O I/O2 18 — CAS
7 — WE 19 I/O I/O3
8 — RAS 20 I/O I/O4
9 I A6 21 — SOE
10 I A5 22 I/O SI/O3
11 I A4 23 I/O SI/O4
12 — V 24 — GND
CC
; ADDRESS INPUT
; COLUMN ADDRESS STROBE INPUT
; DATA TRANSMISSION/OUTPUT ENABLE INPUT
; RAM PORT DATA INPUT/OUTPUT
; ROW ADDRESS STROBE INPUT
; SERIAL CLOCK INPUT
; SAM PORT DATA INPUT/OUTPUT
; SAM PORT ENABLE INPUT/OUTPUT
; WRITE ENABLE INPUT
I/O1 I/O2 I/O3 I/O4
5 6 19 20
OE CLOCK
I/O BUFFER
GENERATOR
TRANSFER
Y DECODER
CONTROL
64K x 4
MEMORY
SOE CLOCK
ARRAY
GENERATOR
SC CLOCK
GENERATOR
256 x 4 DATA
REGISTER
POINTER
VBB
SI/O BUFFER
GENERATOR
2 3 22 23
SI/O1 SI/O2 SI/O3 SI/O4
MP7670AS(MICRO POWER SYSTEMS)FLAT PACKAGE
C-MOS 8-BIT 8CHANNEL D/A CONVERTER
— TOP VIEW —
C V 1 24
OUT
B V 2 23
OUT
A V 3 22
OUT
V
DD
B V 4 21
IN
(+5V)
A V 5 20
IN
V
SS
6 GND 19
(–5V)
PR 7 18
IN
E V 8 17
IN
F V 9 16
IN
E V 10 15
OUT
F V 11 14
OUT
G V 12 13
OUT
CK ; CLOCK INPUT
DI ; SERIAL DATA INPUT
DO ; DATA OUTPUT
LD ; DATA LOAD CONTROL INPUT
PR ; PRESET INPUT
LATCH A
4
LATCH B
DT/OE
LATCH C
21
SOE
LATCH D
1
SC
LATCH E
LATCH F
LATCH G
7
PR
LATCH H
16
LOGIC
LD
CONTROL
20
DI
A3 A2 A1 A0
17
SERIAL SHIFT
CK
REGISTER
5 3
A A
D V
OUT 4 2
B B
23 1
C C
C V
IN 22 24
D D
8 10
E E
D V
IN 9 11
F F
14 12
G G
15 13
H H
DI
IN 7
PR
16
LD
20 18
DI DO
17
DO
OUT
CK
IN
LD
IN
H V
IN
G V
IN
H V
OUT
5
A V
3
-
A V
D/A A +
4
B V
2
-
B V
D/A B +
23
C V
1
-
C V
+
D/A C
22
D V
24
-
D V
+
D/A D
8
E V
10
-
E V
D/A E +
9
F V
11
-
F V
D/A F +
14
G V
12
-
G V
D/A G +
15
H V
13
-
H V
D/A H +
6
GND
18
D7 D0 DO
TO
BVP-550