Sitronix
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INTRODUCTION
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ST7588T
81 x 132 Dot Matrix LCD Controller/Driver
ST7588T is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 132-segment,
80-common and 1-icon driver circuits. ST7588T can be connected directly to a microprocessor which accepts parallel
interface (8-bit), serial peripheral interface (3-line or 4-line SPI), I C interface. Display data stores in an on-chip display data
RAM (DDRAM) of 81 x 132 bits. It performs display data RAM read/write operation without external operating clock to
minimize the 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.
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FEATURES
Single-chip LCD controller & driver
Driver Output Circuits
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132-segment / 81-common (1/81 duty)
Optional display duty
1/49, 1/65 and 1/81 (selected by MODE[1:0] pin)
Partial display mode: 1/33 duty and 1/17 duty
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Capacity: 81X132=10,692 bits
8-bit parallel bi-directional interface supports
6800-series or 8080-series MPU
4-line A mode SPI (write only)
4-line B mode SPI (write only)
3-line 8-bit A mode SPI (write only)
3-line 8-bit B mode SPI (write only)
3 line 9-bit SPI (write only)
I C (Inter-Integrated Circuit) Interface (write only)
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On-chip Low Power Analog Circuit
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Built-in Voltage Booster (x2, x3, x4, x5, x6)
Support external booster supply (V
OUT
)
Built-in Voltage Regulator
With 255-step electronic contrast control
(temperature gradient -0.12%/°C)
Built-in Voltage Follower (with 1/4 ~ 1/11 bias)
Supports external power supply circuits
On-chip Display Data RAM
Microprocessor Interface
External RESB (hardware reset) Pin
Built-in Oscillation Circuit
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Oscillator requires no external components
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DD1
: 1.8V to 3.3V (typ.)
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DD2
: 2.4V to 3.3V (typ.)
Recommend LCD Vop: 9.5V ~ 10.5V
(1/10 Bias, 1/81 Duty)
Temperature Range: -30 to +85
°C
Wide Voltage Range
ST7588T
6800, 8080, 4-Line, 3-Line interface
(without I
2
C interface)
I
2
C interface
ST7588Ti
Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice.
Ver 1.3
1/61
2007/09/20
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
