UPD16772 Datasheet, PDF (1/20 Pages) NEC – 480-OUTPUT TFT-LCD SOURCE DRIVER COMPATIBLE WITH 64-GRAY SCALES

DATA SHEET
MOS INTEGRATED CIRCUIT
µ PD16772
480-OUTPUT TFT-LCD SOURCE DRIVER
(COMPATIBLE WITH 64-GRAY SCALES)
DESCRIPTION
The µ PD16772 is a source driver for TFT-LCDs capable of dealing with displays with 64-gray scales. Data input is
based on digital input configured as 6 bits by 6 dots (2 pixels), which can realize a full-color display of 260,000 colors
by output of 64 values γ -corrected by an internal D/A converter and 5-by-2 external power modules. Because the
output dynamic range is as large as VSS2 + 0.1 V to VDD2 – 0.1 V, level inversion operation of the LCD’s common
electrode is rendered unnecessary. Also, to be able to deal with dot-line inversion, n-line inversion and column line
inversion when mounted on a single side, this source driver is equipped with a built-in 6-bit D/A converter circuit
whose odd output pins and even output pins respectively output gray scale voltages of differing polarity. Assuring a
clock frequency of 45 MHz when driving at 2.3 V, this driver is applicable to UXGA-standard TFT-LCD panels.
FEATURES
• CMOS level input (2.3 to 3.6 V)
• 480 outputs
• Input of 6 bits (gradation data) by 6 dots
• Capable of outputting 64 values by means of 5-by-2 external power modules (10 units) and a D/A converter (R-
DAC)
• Output dynamic range : VSS2 + 0.1 V to VDD2 – 0.1 V
• High-speed data transfer : fCLK = 45 MHz (internal data transfer speed when operating at VDD1 = 2.3 V)
• Apply for dot-line inversion, n-line inversion and column line inversion
• Output voltage polarity inversion function (POL)
• Display data inversion function (POL21/22)
• Current consumption reduction function (LPC, Bcont)
• Logic power supply voltage (VDD1) : 2.3 to 3.6 V
• Driver power supply voltage (VDD2) : 8.5 V ± 0.5 V
ORDERING INFORMATION
Part Number
µ PD16772N-xxx
Package
TCP (TAB package)
Remark The TCP’s external shape is customized. To order the required shape, so please contact one of our
sales representatives.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S14416EJ1V0DS00 (1st edition)
The mark • shows major revised points.
Date Published August 2000 NS CP (K)
©
Printed in Japan
1999, 2000