Pioneer VSX-D409 Service Manual page 53

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3 7 63 1515 0
W24257AJ-12 (D.D & INPUT ASSY : IC1301)
• 32K × 8 High-Speed CMOS Static RAM
•
Block Diagram
VDD
28
DSS
14
A0
10
DECORER
A14
1
CS
20
OE
22 CONTROL
WE
27
TE
L 13942296513
TC9273F-007 (D.D & INPUT ASSY : IC101)
• Analog Switch Array
•
Block Diagram
S1
2
S2
3
S3 4
S4
5
S5
6
S6
7
S7
8
S8
9
S9
10
S10 11
S11
12
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Level Shift + Shift Register Circuit
.
13
GND
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CORE
ARRAY
DATA I/O
DSS VDD
1 28
(L-ch) (R-ch)
10 bit 10 bit
Latch Latch
Circuit Circuit
x ao
y
i
14 15 16
CK DATA STB
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8
•
Pin Function
No. Pin Name
1 A14
2 A12
3 A7
4 A6
5 A5
6 A4
7 A3
8 A2
9 A1
10 A0
21 A10
23 A11
I/O1
11
24 A9
25 A8
26 A13
I/O8
19
11 I/O1
12 I/O2
13 I/O3
15 I/O4
16 I/O5
17 I/O6
18 I/O7
19 I/O8
14 Vss
Q Q
20 CS
3 6 7 1 3
22 OE
27 WE
28 Vdd
•
Pin Function
No. Pin Name
1 VSS
2, 27 S1
S1
27
3, 26 S2
S2
26
4, 25 S3
5, 24 S4
25 S3
6, 23 S5
S4
24
7, 22 S6
8, 21 S7
S5
23
9, 20 S8
S6
22
10, 19 S9
21, 18 S10
S7
21
26, 17 S11
S8
20
13 GND
14 CK
S9
19
15 DATA
18 S10
16 STB
28 VDD
S11
17
u163
.
VSX-D409, VSX-D309
2 9 9 4 2 8
Function
Addres Inputs
Data Inputs/Outputs
Ground
Chip Select Input
1 5 0 5 8 2 9 9 4
Output Enable Input
Write Enable Input
Power Supply
Function
Minus Power Supply
Input and Output
Digital Ground
Clock Input
Data Input
Strobe Input
Plus Power Supply
m
co
9 9
2 8 9 9
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