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ST7637 Arkusz danych(PDF) 1 Page - Sitronix Technology Co., Ltd. |
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ST7637 Arkusz danych(HTML) 1 Page - Sitronix Technology Co., Ltd. |
1 / 210 page ST Sitronix ST7637 65K 132x132 Color Dot Matrix LCD Controller/Driver Ver 1.6 1/210 2009/03 1. INTRODUCTION The ST7637 is a driver & controller LSI for 65K color graphic dot-matrix liquid crystal display systems. It generates 396 Segment and 132 Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral Interface (SPI) or 8-bit/16-bit parallel display data and stores in an on-chip display data RAM. 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. 2. FEATURES Driver Output Circuits ♦ 396 segment outputs / 132 common outputs Applicable Duty Ratios ♦ Various partial display ♦ Partial window moving & data scrolling Gray-Scale Display ♦ 4FRC & 31 PWM function circuit to display 64 gray-scale display ♦ Support 8 color mode (Idle mode) On-chip Display Data RAM ♦ Capacity: 132 x 132 x 16 =278,784 bits Color support by Interface ♦ 256 colors (RGB)=(332) mode ♦ 4k colors (RGB)=(444) mode ♦ 65K colors (RGB)=(565) mode ♦ Truncated 262K colors (RGB)=(666) mode ♦ Truncated 16M colors (RGB)=(888) mode Microprocessor Interface ♦ 8/16-bit parallel bi-directional interface with 6800-series or 8080-series ♦ 4-line serial interface ♦ 3-line (9-bits) serial interface On-chip Low Power Analog Circuit ♦ On-chip oscillator circuit ♦ Voltage converter (x2~x8) with internal capacitors. ♦ Extremely Few Outsider Components. (3 Capacitors) ♦ On-chip Voltage Regulator ♦ On-chip electronic contrast control function ♦ Voltage follower (LCD bias: 1/5~1/12) Operating Voltage Range ♦ Supply Digital Voltage (VDD, VDD1): 1.65 to 3.0V ♦ Supply Analog Voltage (VDD2~VDD5): 2.4 to 3.3V ♦ LCD driving voltage (VOP = V0 - VSS): Max: 18V LCD Driving Voltage (OTP) ♦ Contrast Adjustment Value is stored in the Built-In OTP-ROM for better display quality. LCD Driving setting suggestion ♦ VOP = 14V, BIAS=1/9. (VDD=2.8V) ♦ VOP=15.5V,BIAS=1/10. (VDD=2.8V) Package Type ♦ Application for COG ST7637 6800, 8080, 4-Line, 3-Line interface Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice. |
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