PT6555-LQ 查看數據表（PDF） - Princeton Technology

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PT6555-LQ

LCD Driver IC with Key Input Function

Princeton Technology 

DESCRIPTION

PT6555 is a high performance Liquid Crystal Display

(LCD) Driver IC utilizing CMOS Technology specially

designed with Key Input Function. It can drive up to a

maximum of 164 segments and control up to 4 general

purpose output ports. It includes a Key Scan Circuit

that can support up to 30 key inputs and provides

On-Chip Voltage Detection Type Reset Circuit which

prevents incorrect display. Display Data can be

directly displayed without using any decoder. PT6555

also supports both 1/4 duty-1/2 bias and 1/4 duty-1/3

bias drive techniques. Pin assignments and

application circuit are optimized for easy PCB Layout

and cost saving advantages.

APPLICATIONS

• Electronic Equipment with LCD Display

BLOCK DIAGRAM

PT6555

LCD Driver IC

FEATURES

• CMOS Technology

• PT6555: 48-pin, up to 140 Segment Drivers (4

Com x 35 Seg)

• PT6555-LQ: 64-pin, up to 164 Segment Drivers (4

Com x 41 Seg)

• Up to 4 General Purpose Output Ports

• Key Input Function (Only PT6555-LQ)

• 1/4 Duty-1/2 Bias and 1/4 Duty-1/3 Bias Drive

Techniques

• Sleep Mode & All Segment OFF Function

• On-Chip Voltage Detection Type Reset Circuit

• RC Oscillation Circuit

• Power supply voltage: 4.5 to 6V

• COMS/TTL compatible logic input pins

• Available in 64 pins LQFP; 48 pins LQFP Package

Note: *= Only PT6555-LQ has KI1~KI5, SG36~SG39, KS1~KS6, DO pins.

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

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