JVC RX-7520VBK Service Manual page 24

RX-7520VBK
W24L010AJ-12 (IC641) : SRAM
1. Pin layout
3. Pin function
Pin No. Symbol
1 NC
2 A16
3 A14
4 A12
5 A7
6 A6
7 A5
8 A4
9 A3
10 A2
11 A1
12 A0
13 I/O1
14 I/O2
15 I/O3
16 Vss
TC9164AN (IC402) : Analog switch
1.Function
Switch to On/Off of S1 to S8 by control of LSI.
2. Pin layout & Block Diagram
1-24
Function
No Connection
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Data Input/Output
Data Input/Output
Data Input/Output
Ground
SHIFT RESISTOR
&
LATCH
SHIFT RESISTOR
&
LATCH
2. Block diaglam
V
DD
Vss
A0
DECODER
A16
CS2
CS1
CONTROL
OE
WE
Pin No. Symbol
17 I/O4
Data Input/Output
18 I/O5
Data Input/Output
19 I/O6
Data Input/Output
20 I/O7
Data Input/Output
21 I/O8
Data Input/Output
22 CS1
Chip Select Inputs
23 A10
Address Input
OE
24 Output Enable Input
A11
25 Address Input
A9
26 Address Input
A8
27 Address Input
A13
28 Address Input
WE
29 Write Enable Input
CS2
30 Chip Select Inputs
A15
31 Address Input
VDD
32 Power Supply
CORE
ARRAY
I/O1
DATA I/O
I/O8
Function