ST Sitronix ST7549T 68 x 102 Dot Matrix LCD Controller/Driver 1. INTRODUCTION The ST7549T is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 102 segment and 67 common with 1 ICON driver circuits. This chip is connected directly to a microprocessor, accepts 3-line or 4-line serial peripheral interface (SPI), I2C interface or 8-bit parallel interface, display data can stores in an on-chip display data RAM of 68 x 102 bits. It performs display data RAM read/write operation with no external operating clock to minimize power consumption. In addition, because it contains power supply circuits to drive liquid crystal, it is possible to make a display system with the fewest components. 2. FEATURES Single-chip LCD controller & driver voltage supply is possible) Driver Output Circuits n Generation of intermediate LCD bias voltages 102 segment / 67 common+1 ICON common (1/68 duty) n Oscillator without external components 102 segment / 32 common+1 ICON common (1/33 duty) (external clock also possible) 102 segment / 16 common+1 ICON common (1/17 duty) n Voltage Booster (X2,X3,X4,X5) (1/33 duty and 1/17 duty are under partial screen mode) n Voltage Regulator On-chip Display Data Ram (temperature gradient -0.11%/C) n Capacity: 68X102=6,936 bits n Voltage Follower Microprocessor Interface n On-chip electronic contrast control function (255 n 8-bit parallel bi-directional interface with steps) 6800-series or 8080-series External RESB (reset) pin n 4-line SPI (serial peripheral interface) available Supply voltage range (only write operation) n VDD1 -VSS : 1.7 to 3.3V n 3-line SPI (serial peripheral interface) available n VDD2 -VSS : 2.4 to 3.3V 2 n I C (Inter-Integrated Circuit) Interface n VOUT -VSS : 13.5V (Max.) On-chip Low Power Analog Circuit Temperature range: -30 to +85 degree n Generation of LCD supply voltage (externally V Package Type: COG OUT 6800, 8080, ST7549T-G2 4-Line, 3-Line interface 2 (without I C interface) 2 ST7549Ti-G2 I C interface Ver 1.3 1/52 2005/12/06 ST7549T 3. ST7549T-G2 Pad Arrangement (COG) Chip Size: 8,200 um 1020 um Bump Pitch: PAD NO 1 ~ 11 , 12 ~ 147 , 207 ~ 230 : 55 um PAD NO 11 ~ 12 : 56 um PAD NO 148 ~ 216 : max : 175 um , min : 72 um Bump Size: PAD NO 188 ~ 193 : 45 (x)um 60 (y) um PAD NO 148 ~ 187 , 194 ~ 206 : 55 (x) um 60 (y) um PAD NO 124 ~ 137 , 217 ~ 230: 96 (x) um 37 (y) um PAD NO 1 ~ 123 , 138 ~ 147 , 207 ~ 216 : 37 (x) um 96 (y) um Bump Height: 17 um Chip Thickness: 480 um Ver 1.3 2/52 2005/12/06