98
IS61C256AH-15JI, 32K x 8 Static RAM
INA134UA, Audio Differential Line Receiver
Sense
INA134
Output
V+
Ref
–In
+In
5
6
1
2
7
V–
4
3
25k
Ω
25k
Ω
25k
Ω
25k
Ω
PIN CONFIGURATION
8
-
O
S
/
P
I
D
n
i
P
-
8
w
e
i
V
p
o
T
Ref
–In
+In
V–
NC
V+
Output
Sense
NC = No Connection
1
2
3
4
8
7
6
5
BLOCK DIAGRAM
FUNCTIONAL BLOCK DIAGRAM
A0-A14
CE
OE
WE
32K X 8
MEMORY ARRAY
DECODER
COLUMN I/O
CONTROL
CIRCUIT
GND
VCC
I/O
DATA
CIRCUIT
I/O0-I/O7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GND
VCC
WE
A13
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
PIN CONFIGURATION
28-Pin DIP and SOJ
PIN DESCRIPTIONS
A0-A14
Address Inputs
CE
Chip Enable Input
OE
Output Enable Input
WE
Write Enable Input
I/O0-I/O7
Bidirectional Ports
Vcc
Power
GND
Ground
TRUTH TABLE
Mode
WE
WE
WE
WE
WE
CE
CE
CE
CE
CE
OE
OE
OE
OE
OE
I/O Operation Vcc Current
Not Selected
X
H
X
High-Z
I
SB
1
, I
SB
2
(Power-down)
Output Disabled H
L
H
High-Z
I
CC
Read
H
L
L
D
OUT
I
CC
Write
L
L
X
D
IN
I
CC
Integrated Circuit Diagrams
Содержание FREESPACE 4400
Страница 87: ...87 Circuit Board Layout Diagrams Figure 12 DSP PCB Top Etch Board Layout Diagram ...
Страница 88: ...88 Circuit Board Layout Diagrams Figure 13 DSP PCB Bottom Etch Board Layout Diagram ...
Страница 90: ...90 Circuit Board Layout Diagrams Figure 18 Amplifier Upper PCB Top Etch Board Layout Diagram ...
Страница 91: ...91 Circuit Board Layout Diagrams Figure 19 Amplifier Upper PCB Bottom Etch Board Layout Diagram ...
Страница 92: ...92 Circuit Board Layout Diagrams Figure 20 Amplifier Power Supply Lower PCB Top Etch Board Layout Diagram ...
Страница 93: ...93 Circuit Board Layout Diagrams Figure 21 Amplifier Power Supply Lower PCB Bottom Etch Board Layout Diagram ...
Страница 100: ...100 TC9459F Volume Control PINOUT DIAGRAM BLOCK DIAGRAM PIN DESCRIPTION Integrated Circuit Diagrams ...