LCD Driver. PT6552 Datasheet

PT6552 Driver. Datasheet pdf. Equivalent

Part PT6552
Description 1/2 Duty LCD Driver
Feature DESCRIPTION The PT6552 is ½ duty dynamic LCD display driver. In addition to being able to directly D.
Manufacture PTC
Datasheet
Download PT6552 Datasheet



PT6552
DESCRIPTION
The PT6552 is ½ duty dynamic LCD display driver. In
addition to being able to directly Drive LCD panels with
up to 90 segments, it can also control up to 4 general
purpose output ports. This product also includes a key
scan circuit that allows it to accept input from keypads
with up to 30 keys. This allows the end product front
panel wiring to be simplified.
APPLICATIONS
Cellular phone
Data bank, organizer
Electronic dictionary/translator
P.D.A.
P.O.S.
Information appliance
Caller ID
Pager
Electronic equipment with LCD display
BLOCK DIAGRAM
PT6552
½ Duty LCD Driver with On-Chip Key
Input Function
FEATURES
Up to 4 general purpose output ports
Up to 90 segments outputs
Up to 30 key inputs (Key scan is only performed
when a key is pressed)
½ duty - ½ bias (up to 90 segments)
Serial data control sleep mode and the all
segments off function
Serial data controlled segment output
port/general-purpose output port usage
Serial data I/O supports CCB format
communication with the system controller
High generality since display data is displayed
directly without decoder intervention
Reset pin that can establish the initial state
Available in 64 pin QFP and 64 pin LQFP package
Tel: 886-66296288Fax: 886-29174598http://www.princeton.com.tw2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan



PT6552
APPLICATION CIRCUIT
PT6552
Note:
* Since DO is an open-drain output, a pull-up resistor is required. Select a value (between 1k and 10K) that is appropriate for the capacitance of the
external wiring so that the waveforms are not distorted.
V1.3
2 July 2010





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