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ST7549T 数据表(PDF) 1 Page - Sitronix Technology Co., Ltd.

部件名 ST7549T
功能描述  68 x 102 Dot Matrix LCD Controller/Driver
Download  52 Pages
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制造商  SITRONIX [Sitronix Technology Co., Ltd.]
网页  http://www.sitronix.com.tw
标志 SITRONIX - Sitronix Technology Co., Ltd.

ST7549T 数据表(HTML) 1 Page - Sitronix Technology Co., Ltd.

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ST
Sitronix
ST7549T
68 x 102 Dot Matrix LCD Controller/Driver
Ver 1.3
1/52
2005/12/06
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
Driver Output Circuits
102 segment / 67 common+1 ICON common (1/68 duty)
102 segment / 32 common+1 ICON common (1/33 duty)
102 segment / 16 common+1 ICON common (1/17 duty)
(1/33 duty and 1/17 duty are under partial screen mode)
On-chip Display Data Ram
n
Capacity: 68X102=6,936 bits
Microprocessor Interface
n
8-bit
parallel
bi-directional
interface
with
6800-series or 8080-series
n
4-line SPI (serial peripheral interface) available
(only write operation)
n
3-line SPI (serial peripheral interface) available
n
I2C (Inter-Integrated Circuit) Interface
On-chip Low Power Analog Circuit
n
Generation of LCD supply voltage (externally VOUT
voltage supply is possible)
n
Generation of intermediate LCD bias voltages
n
Oscillator without external components
(external clock also possible)
n
Voltage Booster (X2,X3,X4,X5)
n
Voltage Regulator
(temperature gradient -0.11%/°C)
n
Voltage Follower
n
On-chip electronic contrast control function (255
steps)
External RESB (reset) pin
Supply voltage range
n
VDD1 -VSS : 1.7 to 3.3V
n
VDD2 -VSS : 2.4 to 3.3V
n
VOUT -VSS : 13.5V (Max.)
Temperature range: -30 to +85 degree
Package Type: COG
ST7549T-G2
6800, 8080,
4-Line, 3-Line interface
(without I2C interface)
ST7549Ti-G2
I2C interface


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