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ST7568 Fiches technique(PDF) 1 Page - Sitronix Technology Co., Ltd.

No de pièce ST7568
Description  68 x 102 Dot Matrix LCD Controller/Driver
Download  73 Pages
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Fabricant  SITRONIX [Sitronix Technology Co., Ltd.]
Site Internet  http://www.sitronix.com.tw
Logo SITRONIX - Sitronix Technology Co., Ltd.

ST7568 Fiches technique(HTML) 1 Page - Sitronix Technology Co., Ltd.

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Sitronix
ST7568
68 x 102 Dot Matrix LCD Controller/Driver
Ver 2.2
1/73
2008/01/04
1. INTERODUCTION
The ST7568 is a driver & controller LSI for 4-level gray scale graphic dot-matrix liquid crystal display systems. It contains 102 segment
and 68 common driver circuits. This chip is connected directly to a microprocessor, accepts. 4-line serial interface(SPI) or 8-bit parallel
interface or IIC serial interface, display data can stores in an on-chip display data RAM of 68 x 102 x 2 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 for 4 GRAY SCALE STN LCD
4-level (White, Light Gray, Dark Gray, Black) Gray Scale Display with PWM and FRC Methods
DDRAM data [2n: 2n+1]
00
01
10
11
Gray scale
White
Light gray
Dark gray
Dark
(Accessible column address=0,1,2
…99,100,101)
Driver Output Circuits
102 segment outputs / 68 common outputs
On-chip Display Data ram
-
Capacity: 68X102X2=13,872 bits
Microprocessor Interface
-
8-bit parallel bi-directional interface with 6800-series or
8080-series
-
4-line SPI (serial peripheral interface) available (only
write operation)
-
IIC serial interface (only write operation)
On-chip Low Power Analog Circuit
-
Generation of LCD supply voltage (externally Vout
voltage supply is possible)
-
Generation of intermediate LCD bias voltages
-
Oscillator requires no external components (external
clock also possible)
-
Voltage converter (x2, x3, x4, x5)
-
Voltage regulator
-
Voltage follower
-
On-chip electronic contrast control function (128 steps)
External RESB (reset) pin
Supply Voltage Range
-
Digital (VDD
–VSS): 1.8V to 3.3V
-
Analog (VDD2-VSS2): 2.4 to 3.3V
Temperature range: -30 to +85 degree
ST7568
6800 , 8080 ,
4-Line Interface (without IIC interface)
ST7568i
IIC interface
Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice.


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