PT6554
LCD Driver IC
DESCRIPTION
PT6554 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. PT6554
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.
FEATURES
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CMOS technology
Up to 164 segment drivers (4 Com x 41 Seg)
Up to 4 general purpose output ports
Key input function
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
Available in 64 pins, QFP or LQFP package
APPLICATION
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Electronic equipment with LCD display
BLOCK DIAGRAM
Tel: 886-66296288
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Fax: 886-29174598
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http://www.princeton.com.tw
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2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
PTC [ PRINCETON TECHNOLOGY CORP ]
