DESCRIPTION APPLICATION FEATURES BLOCK DIAGRAM

PT16527
1/3, 1/4 Duty General Purpose
LCD Driver IC
DESCRIPTION
PT16527 is a General Purpose LCD Driver IC utilizing
CMOS Technology specially designed for electronic
tuners controlled by microcontroller. It can drive up to a
maximum of 204 segment outputs and can control up
to 12 general purpose output ports. Pin assignments
and application circuit are optimized for easy PCB
layout and cost saving advantages.
APPLICATION
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Electronic Dictionary / Translator
P.O.S.
Caller ID
Pager
Mini Compo
Electronic Equipment with LCD Display
FEATURES
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Up to 204 Segments Outputs
1/3 duty and 1/4 duty drive schemes can be
controlled from serial data.
1/2 bias and 1/3 bias drive schemes can be
controlled from serial data.
Power Saving Mode and all Segments OFF
Function
Direct Display of Display Data without using a
Decoder
RC Oscillation Circuit
Power Supply Voltage: 4.5 to 6V
CMOS/TTL compatible logic input pins
LCD Drive Bias Voltage can be provided
internally or externally
Available in 64 pins LQFP
BLOCK DIAGRAM
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, No. 233-1, Baociao Rd., Sindian Dist., New Taipei City 23145, Taiwan
PT16527
APPLICATION CIRCUIT
Notes:
1. 39KΩ  R1  10KΩ
2. C  0.047µF
3. 10KΩ  R  1KΩ
V1.2
2
March 2015
PT16527
ORDER INFORMATION
Valid Part Number
PT16527-LQ
Package Type
64-Pin, LQFP
Top Code
PT16527-LQ
PIN CONFIGURATION
V1.2
3
March 2015
PT16527
PIN DESCRIPTION
Pin Name
SG1/P1 ~ SG12/P12
SG13 ~ SG51
COM1 ~ COM3
COM4/SG52
VDD
I/O
O
O
O
O
-
VDD1
-
VDD2
-
VSS
OSC
I/O
/INH
I
CE
CLK
DI
I
I
I
V1.2
Description
Segment Driver Output/General Purpose Output Ports
Segment Driver Output Pins
Common Driver Output Pins
The COM4/SG52 pin can be used as a segment output in 1/3 duty.
Power Supply
Power Supply
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
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.
Ground
Oscillation Input / Output Pin
Display OFF Control Pin
If this pin is set to “LOW” (VSS), the display is forced to turn OFF.
Output driver pins -- SG1/P1 to SG12/P12, SG13 to SG51, COM1 to
COM4/SG52 are set to “LOW”.
If this pin is set to “HIGH” (VDD), the display is turned ON. (see Note)
Chip Enable Pin
Clock Input Pin
Data Input Pin
4
Pin No.
1 ~ 12
13 ~ 51
52 ~54
55
56
58
59
60
61
57
62
63
64
March 2015
PT16527
IMPORTANT NOTICE
Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements,
improvements, and other changes to its products and to discontinue any product without notice at any time.
PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No
circuit patent licenses are implied.
Princeton Technology Corp.
2F, 233-1, Baociao Road,
Sindian Dist., New Taipei City 23145, Taiwan
Tel: 886-2-66296288
Fax: 886-2-29174598
http://www.princeton.com.tw
V1.2
23
March 2015