JVC KD-S785 Service Manual page 28

KD-S785
K6R1008VCTI12-X (IC451) : SRAM
1.Pin layout
A 1
0
A 2
1
A 3
2
A 4
3
CS 5
I/O 6
1
I/O 7
2
Vcc 8
SOJ/
Vss 9
TSOP2
I/O 10
3
I/O 11
4
WE 12
A 13
4
A 14
5
A 15
6
A 16
7
3.Pin function
Pin Name
A - A Address Inputs
0 16
WE Write Enable
CS Chip Select
OE Output Enable
I/O ~ I/O Data Inputs/Outputs
1 8
V Power(+3.3V)
CC
V Ground
SS
N.C No Connection
RPM6938-SV4 (IC602) : Remote sensor
1.Block diagram
I/V
conversion
PD
1-28
32 A
16
31 A
15
30 A
14
29 A
13
28 OE
27 I/O
8
26 I/O
7
25 Vss
24 Vcc
23 I/O
6
22 I/O
5
21 A
12
20 A
11
19 A
10
18 A
9
17 A
8
Pin Function
AMP
BPF
fo
trimming
circuit
magnetic shield
2.Block diagram
Clk Gen.
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
I/O ~I/O
1 8
CS
WE
OE
Vcc
AGC
Comp
Detector
Pre-Charge Circuit
Memory Array
512 Rows
256x8 Columns
Data
I/O Circuit
Cont. Column Select
CLK
Gen.
A A A A A A
9 10 11 12 13 14
Vcc
22k
Rout
GND
A A
15 16