Datasheet for the Sitronix ST7026, a single-chip LCD controller and driver supporting 3-Line SPI or I2C interfaces with built-in voltage boosters and LED…
The ST7026 is a single-chip LCD controller and driver designed for graphic dot-matrix liquid crystal display systems. It features 48 segment and 4 common driver circuits and can be connected directly to a microprocessor via a 3-Line serial peripheral interface (3-SPI) or an I2C compatible interface. The device includes an on-chip Display Data RAM (DDRAM) of 48 x 4 bits to minimize power consumption by eliminating the need for an external clock during write operations.
| Digital Power Voltage Range | 3.0V~5.0V |
|---|---|
| Analog Power Voltage Range | 3.0V~5.0V |
| LCD Driving Voltage Range | 4V to 18V |
| Maximum LCD Frame Frequency | 320Hz |
| PWM Frequency Range | 50~14.4K Hz |
| Operation Temperature | -30 ~85°C |
| Package Type | COG |
The ST7026 supports a 3-Line serial peripheral interface (3-SPI) or an I2C compatible interface.
No, the device has a built-in oscillator that requires no external component.
The maximum LCD frame frequency is 320Hz.
It uses a built-in LED backlight control circuit with a PWM signal synchronized to the LCD frame.