-14-
1
2
3-6
7-10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33-44
45-48
49-52
53
54
55
56
57
58
59
60
61
62
63
64
Pin No.
Pin Name
I/O
Description
IC DESCRIPTION-1/1 (LC72341G)-1/1
XOUT
TEST2
PA3-PA0
PB3-PB0
PC3
PC2
PC1
PC0
PD3
PD2
PD1
INT/PD0
PE1
BEEP/PE0
PF2
AD11/PF1
AD11/PF0
VSS1
PG3/S20
PG2/S19
PG1/S18
PG0/S17
PH3/S16
PH2/S15
PH1/S14
PH0/S13
S12-S1
COM4-COM1
DBR4-DBR1
RES
HCTR
VDD
FMIN
AMIN
VSS2
EO
AIN
AOUT
AGND
TEST1
XIN
O
I
I
O
O
O
O
O
O
O
I
I
—
O
I
I
I
—
I
I
—
—
—
—
—
—
O
O
—
I
—
—
—
—
—
—
—
—
—
I
I
Terminal to which external 75 kHz crystal oscillator is connected.
Test terminal. GND connection.(Pull down)
Key input. (Not connected) (Pull down)
Key output.
Dimmer: H output when back light is ON. Or L output.
Light: H output when back light is ON.
ATTN1: Buzzer attenuation output 1.
ATTN2: Buzzer attenuation output 2.
Mute. High output at mute.
Radio: High output at radio power is ON. L output at radio power is OFF.
AC: High input when AC adapter is used. L input when battery is used.(Pull down)
Back up: L input at backup mode. Normally H. (Pull up)
Not used.
Beep: Buzzer sound output.
AD input.(Pull down)
AD input. (For voltage detection) (Pull down)
Power terminal. GND connection.
12/24: 24 hours display at H input. 12 hours display at L input.(Pull down)
KT: H input when kitchen timer function is disabled.(Pull up)
Not used.
LCD segment.
LCD common.
Not used.
Reset. Reset terminal. Forced reset when L is input. (Pull up)
Not used.
Power terminal. VDD connection.
Not used.
Power terminal. GND connection.
Not used.
Test terminal. GND connection.(Pull down)
Terminal to which external 75 kHz crystal oscillator is connected.(Pull down)