LCD Driver IC with Key Input Function

PT6553

Princeton Technology Corp.

Tel : 886-2-29162151

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

PT6553 v 1.0

1

Updated November 2000

DESCRIPTION

PT6553 is an LCD Driver IC providing key scan circuitry which can accept up to a maximum of 30 keys,

thereby, reducing printed circuit board wiring. It can drive up to 126 segments and is capable of control-

ling up to 4 general purpose output ports. The reset circuit provides on-chip voltage detection making it

possible to prevent incorrect displays. Pin assignments and application circuit are optimized for easy PCB

layout and cost saving advantages.

FEATURES

• Up to 126 Segments Outputs

• Up to 4 General Purpose Output Ports

• Key Input Function (up to 30 Keys)

• 1/3 Duty - 1/2 Bias and 1/3 Duty - 1/3 Bias Drive Techniques

• Sleep Mode and all Segments OFF Function

• Direct Display of Display Data without using a Decoder

• On-Chip Voltage-Detection Type Reset Circuit

• RC Oscillation Circuit

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