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- Pin Functions (PD6294A)
Pin No.
Pin Name
1
VSS
2
X1
3
X0
4
NC
5,6
MOD1,0
7
DIMMER
8
KYDT
9
DPDT
10
REMIN
11
GRN
12
AMB
13–16
KD4–1
17-22
KST6–1
23
VDD
24-73
SEG49–0
74–77
COM3–0
78
VLCD
79,80
V2,1
*PD6294A
80
1
20
21
BP5250
CONTROL CIRCUIT
TRIANGLE OSCILATOR
Fosc = 190kHz
DRIVE
CIRCUIT
7
6
5
ADJ
IS
GND
VOUT
I/O
Function and Operation
GND
Crystal oscillator connection pin
Crystal oscillator connection pin
Not used
I
Connect to GND
O
Dimmer select output
O
Key data output
I
Display data input
I
Remote control pulse input
Dual Illumination (Green)
Dual Illumination (Amber)
I
Key data input
O
Key strobe output
VDD
O
LCD segment output
O
LCD common output
I
LCD voltage input
Power supply terminal
61
60
41
40
OVER CURRENT
DETECTION
CIRCUIT
4
3
2
1
VIN
CTL
SW
*S-80827ANUP-EDQ
1
GND
DEH-P3370XM
VREF
2
3
VDD
VSS
93
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