PT6579
PIN DESCRIPTION
Pin Name
SG1 to SG50
COM4/SG51
COM3 to COM1
VDD
VDD1
I/O
O
O
-
I
Active
-
-
-
-
Segment output pins
Description
Pin No.
1 to 50
Common driver output pins
51 to 54
The COM4/ SG51 pin can be used as a segment output in 1/3 duty
Power supply
55
Supply voltage in the range 4.5 to 6.0V
Used for the 2/3 Bias Voltage when the Bias Voltage is provided
externally.
56
Connect to VDD2 when 1/2 bias is used
Used for the 1/3 Bias Voltage when the Bias Voltage is provided
externally.
57
Connect to VDD1 when 1/2 Bias is used
Ground
Chip enable pin
Synchronization clock pin
-
H
Transfer data input pin
PWM output pins
58
59
60
61
62 to 64
VDD2
VSS
CE
CLK
DI
P1 to P3
I
-
I
I
I
O
-
-
H
V1.1
5
September, 2009
PTC [ PRINCETON TECHNOLOGY CORP ]
