UPD16641 Datasheet | NEC

DATA SHEET MOS INTEGRATED CIRCUIT µPD16641 SOURCE DRIVER FOR 240-OUTPUT TFT-LCD (64 GRAY SCALES) DESCRIPTION The µPD16641 is a source driver for TFT-LCD 64 gray scale displays. Its logic circuit operates at 3.3 V and the driver circuit operates at 3.3 or 5.0 V (selectable). The input data is digital data at 6 bits × 3 dots, and 260,000 colors can be displayed in 64-value outputs γ-corrected by the internal D/A converter and 11 external power supplies. Because the clock frequency is 33 MHz MIN, the µPD16641 can be used in TFT-LCD panels conforming to the VGA standards. Features - Precharge-less output buffer - 64-value output by 11 external power supplies and internal D/A converter - Level of γ-corrected power supply can be inverted - Output voltage range: 2.8 VP-PMAX. (at supply voltage VDD2 of driver circuit = 3.0 V) 4.3 VP-PMAX. (at supply voltage VDD2 of driver circuit = 4.5 V) - CMOS level input - 6 bit (gray scale data) × 3 dot input - High-speed data transfer: fmax. = 33 MHz MIN. (internal data transfer rate at supply voltage VDD1 of logic circuit = 3.0 V) - 240 outputs - Supply voltage of driver circuit selectable (Vsel = H: 3.3 V, Vsel = L: 5.0 V) - Slim TCP ORDERING INFORMATION Part No. Package TCP (TAB package) µPD16641N-××× The TCP is custom-made. For details, consult NEC Document No. S10565EJ1V0DS00 (1st edition) Date Published May 1998 N CP(K) Printed in Japan © µPD16641 1. BLOCK DIAGRAM STHR R/L CLK C1 C2 STHL VDD1 (3.3 V) VSS1 C79 C80 80-bit bidirectional shift register D00 to 05 D10 to 15 D20 to 25 Data...