JVC UX-F70MD Service Manual page 67

BU4094B(IC33):Serial to parallel port extension
1.Pin layout
1
STTA
16
VDD
2
SDATA
15
CE
3
SCK
14
RECH
4
BIAS1
13
SOLCTRL
5
BIAS2
12
MOTOR
6
BIAS3
11
RMUTE
7
RECB
10
NC
8
GND
9
NC
GM71VS17400CLT5(IC390) : DRAM
1. Pin layout
VCC 1
DQO 2
DQ1 3
WE 4
RAS 5
(NC)A11 6
A10 8
A0 9
A1 10
A2 11
A3 12
VCC 13
2.Block diagram
2
SDATA
3
SCK
1
STTA
15
OUTPUT
ENABLE
Q1
2. Block diagram
Pin No.
26 VSS
1.13
25 DQ3
24 DQ2
2.3.24.25
23 CAS
22 OE
21 A9
6.8 12.
19 A8
15 19.21
18 A7
8 12.
17 A6
15 19.21
16 A5
15 A4
14.26
14 VSS
8-STAGE
SHIFT REGISTER
8-BIT
LATHES
3-STATE
OUTPUTS
Q8
PARALLEL OUTPUT
Symbol
VCC Power (+3.3V)
DQO DQ3 Data-input/Data-output
4 WE Write Enable
5
RAS Row Address Strobe
AO A11 Address Inputs
(4K Refresh Product)
AO A10 Address Inputs
(2K Refresh Product)
Ground
VSS
Output Enable
22
OE
Column Address Strobe
23
CAS
UX-F70MD/UX-F72MD
10
Q's
SERIAL
9
OUTPUT
Qs
Function
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