PT6526 Datasheet, PDF (7/24 Pages) Princeton Technology Corp – LCD Driver IC

PT6526
PIN DESCRIPTION
Pin Name
I/O
Description
SG1/P1 ~ SG12/P12
O Segment Driver Output/General Purpose Output Ports
SG13 ~ SG51
O Segment Driver Output Pins
COM1 ~ COM4
O Common Driver Output Pins
VDD
-
Power Supply
Power Supply
VDD1
-
This pin is used to apply a 2/3 LCD Drive Bias Voltage.
If the ½ Bias Drive Technique is used, this pin must be short to
VDD2.
Power Supply
VDD2
-
This pin is used to apply a 1/3 LCD Drive Bias Voltage.
If the ½ Bias Drive Technique is used, this pin must be short to
VDD1.
VSS
-
Ground
OSC
I/O Oscillation Input / Output Pin
Display OFF Control Pin
If this pin is set to “LOW” (VSS), the display is forced to turn OFF.
/INH
I
Output driver pins -- SG1/P1 to SG12/P12, SG13 to SG51, COM1 to
COM4 are set to “LOW”.
If this pin is set to “HIGH” (VDD), the display is turned ON. (see Note)
CE
I
Chip Enable Pin
CLK
I
Clock Input Pin
DI
I
Data Input Pin
Note: It must be noted that when the display is forcibly turned OFF, the serial data transfers can still be performed.
Pin No.
1 ~ 12
13 ~ 51
52 ~55
56
57
58
59
60
61
62
63
64
V1.1
7
November 2009