PT6552 데이터 시트보기 (PDF) - Princeton Technology

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PT6552

1/2 Duty LCD Driver with On-Chip Key Input Function

Princeton Technology 

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: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan

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