5. Pin Description
PIN Name
I/O
SEG[42:1]
O
COM [3:1]
O
VCL[2:1]
I
OSC
I/O
KS[6:1]
O
KIN[5:1]
I
CE
I
SCK
I
SO
O
SI
I
TEST
I
P[4:1]
O
VDD
I
VSS
I
HL14203
Pin Number
42
3
2
1
6
5
1
1
1
1
1
4
1
1
Contents
LCD SEG Pins share P1,P2,P3 and P4
LCD Common Pins
LCD Bias Pins
Oscillator Input Pin
Key Scan Output Pins
Key Scan Input Pins
Serial I/O Control Pin
Serial I/O Clock Pin
Serial I/O Data Output Pin
Serial I/O Data Input Pin
Test Pin. “1” Test mode , “0” Normal Mode
Output Port share SEG[4:1]
Power Supply Pin
Ground Pin
6
Preliminary