— 17 —
Pin No.
1 to 2
3
4
5 to 8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 to 34
35 to 49
50
51
52
53
54 to 56
I/O
—
O
O
—
O
—
I
I
I
—
O
I
I
—
O
I
I
O
—
O
I
O
—
—
—
—
O
O
I
O
I
—
Description
Not used (open)
Low when radio muting (no sound)
High when radio is turned on
Not used (open)s
Low when OFF HOLD = HI
Not used (open)
Key input
Key input
Key input
Not used (open)
High when LED is turned on
Test mode when initial high
BATT LOW = High
GND terminal
Output to the charge pump of PLL synthesizer
VCO input
VCO input form FM local oscillating circuit
2-regulator output
Power terminal
System clock output (75 kHz)
System clock input (75 kHz)
Regulator output
LCD drive power terminal
Capacitor ground terminal
2-capacitor ground terminal
LCD drive power terminal
Common signal output to LCD
Segment signal output to LCD
Low when back-up
Initial setting
Beep sound signal output
Power ON/OFF control signal “H” = ON, “L” = OFF
Not used (open)
Pin Name
NC
MUTE
TUNE ON
NC
KSI
NC
UP
ENTER
RESET
NC
LED
TEST
BATT DET
GND
EO
VCOL
VCOH
REG0
VDD
XOUT
XIN
REG1
REG LCD0
CAP LCD0
CAP LCD1
REG LCD1
COM0-3
LCD0-14
CE
INT
BEEP
POWER
NC
4-5. IC PIN FUNCTION DESCRIPTION
•
IC201 (uPD17072GB-563-1A7) SYSTEM CONTROL, LCD DRIVE