28
Pin No.
Pin Name
I/O
Description
1
VDD
-
+3 V power supply.
2
BIAS
-
LCD driver power supply.
3 ~ 5
VLC0 ~ 2
-
LCD driver power voltage.
6
VSS1
-
GND.
7 ~ 10
COM0 ~ 3
O
LCD common output.
11 ~ 27
SEG0 ~ 16
O
LCD segment output.
28 ~ 30 SEG17 ~ 19
O
LCD segment output.
31
DSL1
O
“H” when DSL1 output.
32
DSL2
O
“H” when DSL2 output.
33
STBY
O
“H” when STBY output.
34
BEEP-ON
O
“H” output when CD BEEP is “ON”.
35
CS
O
E
2
P-ROM chip select.
36 VOL -LAT
O
37 VOL-DATA
O
38 VOL-CLK
O
39
AVDD
-
AD converter analogue power.
40
AVREF
-
AD converter reference power.
41
K-PSB
I
PLAY, STOP, BAND keys input.
42
K-FUNC1
I
KEY input 1.
43
K-FUNC2
I
KEY input 2.
44
BATT-LEVEL
I
BATT level input for battery level indication.
45
HOLD/OFF
I
“L” input when in HOLD mode.
46
REMO-IN
I
Remote control AD figure input.
47 AC-IN
I
“H” input when AC adapter connected.
48
AVSS
-
GND for AD converter.
49
DATA-IN
I
E
2
P ROM data input.
50
DATA-OUT
O
E
2
P ROM data output.
51
DISP-CS
I
Chip selection input for CD indication data.
E
2
P ROM clock output.
BEEP output (it is fixed due to square-wave output.
I
CD detection data input.
I
Clock input for CD detection data.
AM STEP (9K/10K) switch input.
“H” output when PLAY key is pressed.
59
K-STOP
O
“H” output when STOP key is pressed.
60
K-OP/CL
I
Cover detection. “L” input when the cover is CLOSE.
61
CD-CONT
O
“L” output when CD is ON.
62
P-OFF
O
“L” output when power is off.
63
A-MUTE
O
MUTE output.
Volume-Latch
Volume-Data
Volume control (DSL dummy)
Volume-Clock
31(DSL 1)
32(DSL 2)
DSL OFF
L
L
DSL 1
H
L
DSL 2
L
H
Pin(name)
MODE
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