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ST7577 Scheda tecnica(PDF) 1 Page - Sitronix Technology Co., Ltd.

Il numero della parte ST7577
Spiegazioni elettronici  132 x 39 Dot Matrix LCD Controller/Driver
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Produttore elettronici  SITRONIX [Sitronix Technology Co., Ltd.]
Homepage  http://www.sitronix.com.tw
Logo SITRONIX - Sitronix Technology Co., Ltd.

ST7577 Scheda tecnica(HTML) 1 Page - Sitronix Technology Co., Ltd.

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ST
Sitronix
ST7577
132 x 39 Dot Matrix LCD Controller/Driver
Ver 1.0a
1/48
2008/02/14
1. INTRODUCTION
ST7577 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. ST7577 contains 132 segment and
39 common driver circuits. This chip is connected directly to a microprocessor, accepts 3-line, 4-line serial peripheral
interface (SPI) or 8-bit parallel interface, display data can stores in an on-chip Display Data RAM (DDRAM) of 132 x 39 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
l
132 segments / 39 commons (DTY=
”L”)
l
132 segments / 12 commons (DTY=
”H”)
On-chip Display Data RAM (DDRAM)
l
Capacity: 132X39=5148 bits
Microprocessor Interface
l
8-bit parallel bi-directional interface with 6800-series
or 8080-series
l
4-line SPI (serial peripheral interface) available (only
write operation)
l
3-line SPI (serial peripheral interface) available
On-chip Low Power Analog Circuit
l
Embedded Boosters with voltage regulation function
that generates high-accuracy voltage (externally V0I
/ XV0I voltage supply is also supported).
l
Voltage regulation temperature gradient -0.07%/
°C
l
Programmable Booster stages: X3,X4.
l
On-chip electronic contrast control function
l
Built-in
Voltage
Follower
generates
LCD
bias
voltages (1/4 to 1/7).
Built-in oscillator
l
Built-in oscillator requires no external components
(external clock input is also supported)
External RESB (reset) pin
Supply voltage range
l
VDD - VSS (Digital): 2.4 to 3.3V (typical);
l
VDD2 - VSS (Analog): 2.4 to 3.3V (typical).
Display supply voltage (V0-VSS) range: 3.0V~8.31V
Temperature range: -30 to +85 degree
Support LCD Module Size up to 1.4
ST7577
6800 , 8080 , 4-Line , 3-Line interface


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