LCD - ST7528_2.3v - LCD ControllerDriver

LCD - ST7528_2.3v - LCD ControllerDriver - ST Sitronix...

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Unformatted text preview: ST Sitronix ST7528 16 Gray Scale Dot Matrix LCD Controller/Driver Ver2.3 1/97 2007/1/3 INTRODUCTION The ST7528 is a driver & controller LSI for 16-level gray scale graphic dot-matrix liquid crystal display systems. It contains 2 Mode (160X100,132X128) for Segment and Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral Interface (SPI), IIC or 8-bit parallel display data and stores in an on-chip display data RAM of 160 x 129 x 4 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 necessary to drive liquid crystal, it is possible to make a display system with the fewest components. FEATURES 16-level (White Mode ~ Dark Mode) Gray Scale Display with PWM and FRC Methods DDRAM data [ 4n : 4n+3 ] 4n 4n + 1 4n + 2 4n+ 3 Gray Scale White Mode 1 Gray Level 1 1 Gray Level 2 : : : : : : : : : : 1 1 1 Gray Level 13 1 1 1 Gray Level 14 1 1 1 1 Dark (Mode0: Accessible column address, n = 0, 1, 2, , 129, 130, 131) (Mode1: Accessible column address, n = 0, 1, 2, , 157, 158, 159) Driver Output Circuits - Mode 0 : 132 segment outputs / 128+1 common outputs (16-level gray scale) - Mode 1: 160 segment outputs / 100+1 common outputs (16-level gray scale) Applicable Display Ratios- Various partial display - Partial window moving & data scrolling On-chip Display Data RAM - Capacity: 129 160 4 = 82,560 bits - 16-Gray Level display dot is illuminated by 4 bit data control ST7528 Ver2.3 2/97 2007/1/3 Microprocessor Interface - 8-bit parallel bi-directional interface with 6800-series or 8080-series - 4-line serial interface (4-line-SIF) - 3-line serial interface (3-line-SIF) - IIC serial interface On-chip Low Power Analog Circuit - On-chip oscillator circuit - Voltage converter (x3, x4, x5 or x6) - Voltage regulator (temperature coefficient: -0.125%/ C, or external input) - On-chip electronic contrast control function (64 steps X 8 ) - Voltage follower (LCD bias: 1/5 to 1/12) Operating Voltage Range - Supply voltage (VDD): 1.8 to 3.3V (VDD2): 2.4 to 3.3V - LCD driving voltage (VLCD = V0 - VSS): 3.5 to 15.0 V Package Type - Application for COG ST7528 6800 , 8080 , 4-Line , 3-Line interface (without IIC interface) ST7528i IIC interface Note1: we would like to recommend to use the external VOUT when the panel is large than 1.8 inch Note2: we would like to recommend to set lower VOP than 12 voltage, when the panel size is large like 1.6 inch ST7528 Ver2.3 3/97 2007/1/3 ST7528 Pad Arrangement (COG) Chip Size: 12,575 um 1,220 um Bump Pitch: PAD NO 1 ~ 229, 353 ~ 385: 55 um (COM/SEG), PAD NO 230 ~ 338: 75 um (I/O) ,PAD NO 339 ~ 352: 75 um (I/O) , PAD 338~339: 81um....
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LCD - ST7528_2.3v - LCD ControllerDriver - ST Sitronix...

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