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IC,uPD789405AGK-A12-9EU
Pin No.
Pin Name
1
VDD
2
BIAS
3 ~ 5
VLC0 ~ 2
6
VSS1
7 ~ 10
COM0 ~ 3
11 ~ 27
SEG0 ~ 16
28 ~ 30
NC
31
DSL1
32
DSL2
33
STBY
34
BEEP-ON
35
CS
36
B-FULL
37
B-MID
38
B-EMP
39
AVDD
40
AVREF
41
K-PSB
42
K-FUNC1
43
K-FUNC2
44
BATT-LEVEL
45
HOLD/OFF
46
REMO-IN
47
TU-SEL
48
AVSS
49
DATA-IN
50
DATA-OUT
51
DISP-CS
52
SK
53
BEEP
54
DISP-DATA
55
NC
56
DISP-CLK
57
AM-STEP
58
K-PLAY
59
K-STOP
60
K-OP/CL
61
CD-CONT
62
P-OFF
63
A-MUTE
I/O
-
+3 V power supply.
-
LCD driver power supply.
-
LCD driver power voltage.
-
GND.
O
LCD common output.
O
LCD segment output.
-
Not connected.
O
"H" when DSL1 output.
O
"H" when DSL2 output.
O
"H" when STBY output.
O
"H" output when CD BEEP is "ON".
2
O
E
P-ROM chip select.
O
"L" when "battery level LED-FULL" is illumenated.
O
"L" when "battery level LED-MID" is illumenated.
O
"L" when "battery level LED-EMP" is illumenated.
-
AD converter analogue power.
-
AD converter reference power.
I
PLAY, STOP, BAND keys input.
I
KEY input 1.
I
KEY input 2.
I
BATT level input for battery level indication.
I
"L" input when in HOLD mode.
I
Remote control AD figure input.
I
Japan or oversea settings input. "H" = Japan, "L" = oversea.
-
GND for AD converter.
2
I
E
P ROM data input.
2
O
E
P ROM data output.
I
Chip selection input for CD indication data.
2
O
E
P ROM clock output.
O
BEEP output (it is fixed due to square-wave output.
I
CD detection data input.
O
Not connected.
I
Clock input for CD detection data.
I
AM STEP (9K/10K) switch input.
O
"H" output when PLAY key is pressed.
O
"H" output when STOP key is pressed.
I
Cover detection. "L" input when the cover is OPEN.
O
"L" output when CD is ON.
O
"L" output when power is off.
O
MUTE output.
Description
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