Datasheet

PT16580
General Purpose LCD Driver IC
DESCRIPTION
PT16580 is an LCD Driver IC which can drive up to 200
segments. It can be used for frequency display in
microprocessor-controlled radio receiver and in other
display applications. PT16580 supports both 1/3 duty,
and 1/4 duty drive. Pin assignment and application
circuit are optimized for easy PCB layout and cost
saving advantages.
APPLICATION
 Electronic equipment with LCD display
FEATURES
 CMOS technology
 Up to 153 segments for 1/3 duty and 200 segments
for 1/4 duty drive can be displayed
 1/3 Duty - 1/2 Bias and 1/3 Duty - 1/3 Bias drive
techniques
 1/4 Duty - 1/2 Bias and 1/4 Duty - 1/3 Bias drive
techniques
 Power saving mode and all segments OFF function
 Direct display of display data without using a
decoder
 RC oscillation circuit
 Power supply voltage: 4.5V to 6V
 CMOS/TTL compatible logic input pins
 LCD drive bias voltage can be provided internally
or externally
 On-Chip voltage detection type reset circuit
 Programmable PWM signal output pins
 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
PT16580
APPLICATION CIRCUIT 1
1/2 BIAS (FOR NORMAL PANEL)
Notes:
1. 10K  R 1K
2. *=Please select the suitable transistor
1/3 BIAS (FOR NORMAL PANELS)
Notes:
1. 10K  R 1K
2. *=Please select the suitable transistor
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August 2013
PT16580
APPLICATION CIRCUIT 2
1/2 BIAS (FOR NORMAL PANEL)
Notes:
1. 10K  R 1K
2. *=Please select the suitable transistor
1/3 BIAS (FOR NORMAL PANELS)
Notes:
1. 10K  R 1K
2. *=Please select the suitable transistor
V1.1
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PT16580
ORDER INFORMATION
Valid Part Number
Package Type
Top Code
PT16580-LQ
64 Pins, LQFP
PT16580-LQ
PIN CONFIGURATION
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August 2013