Sony HKC-7080 Installation And Maintenance Manual page 57

LC35256DT-10-TLM (SANYO)
C-MOS 256 K (32,768 x 8)-BIT SRAM
—TOP VIEW—
OE
22
IN
A11 23
IN
A9 24
IN
A8 25
IN
A13 26
IN
WE
27
IN
28 V
DD
A14 1
IN
A12 2
IN
A7 3
IN
A6 4
IN
A5 5
IN
A4 6
IN
A3 7
IN
A0 - A14
10
A0
CE
9
A1
I/O1 - I/O8
8
A2
OE
7 11
A3 I/O1
WE
6 12
A4 I/O2
5 13
A5 I/O3
4 15
A6 I/O4
CE
3 16
A7 I/O5
1
25 17
A8 I/O6
0
24 18
A9 I/O7
0
21 19
A10 I/O8
0
23
A11
0 ; LOW LEVEL
2
A12
1 ; HIGH LEVEL
26
A13
x ; DON'T CARE
1
A14
OE WE CE
22 27 20
1
A14
ROW
26
A13
DECODER
2
A12
23
A11
24
A9 BUFFER
25
A8
3
A7
MEMORY
4
MATRIX
A6
5
512 x 512
A5
21
A10
6
A4
7 I/O GATE
A3
BUFFER COLUMN
8
A2
DECODER
9
A1
10
A0
22
OE
BUFFER
27
WE
20
CE
HKC-7080
GND
: ADDRESS INPUTS
: CHIP ENABLE INPUT
: DATA INPUTS/OUTPUTS
: OUTPUT ENABLE INPUT
: WRITE ENABLE INPUT
OE WE MODE I/O TERMINAL
x x NOT SELECT HIGH IMPEDANCE
1 1 OUTPUT DISABLE HIGH IMPEDANCE
0 1 READ OUTPUT DATA
x 0 WRITE INPUT DATA
19
I/O8
18
I/O7
17
I/O6
16
I/O I/O5
15
BUFFER
I/O4
13
I/O3
12
I/O2
11
I/O1
MB88346BPFV (FUJITSU)
MB88346BPFV-EF
C-MOS 8-BIT D/A CONVERTER
—TOP VIEW—
21 A10
IN
1 20
GND
GND
CE
20
IN
AO3 2 19
OUT
19 I/O8
AO4 3 18
OUT
18 I/O7
AO5 4 17
OUT
17 I/O6
AO6 5 16
OUT
16 I/O5
AO7 6 15
OUT
15 I/O4
AO8 7 14
OUT
14
AO9 8 13
OUT
13 I/O3
AO10 9 12
OUT
12 I/O2
10 V V 11
DD CC
11 I/O1
10 A0
IN
AO1 - AO12 : 8-BIT D/A OUTPUTS
9 A1 CK : CLOCK INPUT
IN
DI : SERIAL DATA INPUT
8 A2 DO : DATA OUTPUT
IN
LD : DATA LOAD CONTROL INPUT (H : LOAD)
8
D0
D1
D2
17
DI
D3
D4
D5
D6
16
D7
CK
D8
D9
ADDRESS
D10 DECODER
D11
15
LD
MC74ACT08MEL (MOTOROLA)
TC74ACT08F (TOSHIBA)
C-MOS QUAD 2-INPUT AND GATES
—TOP VIEW—
14 13 12 11 10 9
V
DD
1 2 3 4 5 6
MC74ACT125MEL (MOTOROLA)
C-MOS BUS BUFFER GATES WITH 3-STATE OUTPUT
—TOP VIEW—
14 13 12 11 10 9
V
DD
1 2 3 4 5 6
18
AO1
19
AO2
2
AO3
AO2
OUT
3
AO4
4
AO5
AO1
OUT
17 5
D1 AO6
6
AO7
DI
IN
7
AO8
8
AO9
CK
IN
9
AO10
12
AO11
LD
IN
13
AO12
16
DO
OUT
14
DO
LD
AO12 15
OUT
AO11
OUT
8-BIT
8 8-BIT 8
+
R-2R
LATCH
_
D/A CONV
8-BIT
8 8-BIT 8
+
R-2R
LATCH
_
D/A CONV
12
8
A
A
Y = Y
B
B
A B
Y = A • B = +
A B
Y
GND
0 0
0
7
0 1 0
1 0 0
0 : LOW LEVEL
1 1 1
1 : HIGH LEVEL
G
8
A Y
G A Y
0 0 0
0 1 1
1 x HI-Z
GND
0 : LOW LEVEL
7
1 : HIGH LEVEL
x : DON'T CARE
HI-Z : HIGH IMPEDANCE
IC
13
AO12
18
AO1
14
DO
5-7