UPD16715A

DATA SHEET MOS INTEGRATED CIRCUIT µ PD16715A 384-OUTPUT TFT-LCD SOURCE DRIVER (COMPATIBLE WITH 64-GRAY SCALES) DESCRIPTION The µPD16715A 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 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 maximum clock frequency of 55 MHz when driving at 3.0 V, this driver is applicable to XGA/SXGA-standard TFT-LCD panels. FEATURES CMOS level input 384 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 Logic power supply (VDD1): 3.3 V ± 0.3 V +2.5 V Driver power supply (VDD2): 11.0 V – 2.0 High-speed data transfer: f CLK = 55 MHz (internal data transfer speed when operating at 3.0 V) Output dynamic range VSS2 + 0.1 V to VDD2 – 0.1 V Apply for only dot-line inversion Single ban...