ST7628 LCD display driver library

The ST7628 display controller is supported by the RAMTEX S6D0129 display driver library package.
Full GUI display driver C source code. Processor and C compiler independent.

ST7628 display controller characteristics

Below is a brief introduction to the main characteristics for the ST7628 RGB display controller (seen from a software driver design viewpoint).

For information about the ST7628 driver software support please go to the library description.

ST7628 device type

• COG RGB color display controller for use in small embedded systems with on-chip frame buffer and LCD screen driver.
• The ST7628 supports LCD screens with a size up to 98 x 70 pixels (WxH)
• On-chip LCD driver with voltage generator and software controlled contrast regulation.

Frame buffer

• RGB pixel resolution (bits per pixel): 16-bit.
• ST7628 frame buffer organization: 98 RGB pixels on scan line, 70 lines.

Processor interfaces on ST7628

• ST7628 parallel bus interface

  • Parallel bus types: 8080 bus type and 6800 bus type
  • Parallel bus size: 8-bit, 16-bit.
  • Addressing concept: Indexed bus interface (1 chip select pin + 1 address bit pin (Data/Command))

• Serial bus interfaces on ST7628

  • SPI bus: 4-wire: /CS, DC, SDIN, SCLK.
  • SPI bus: 3-wire: /CS, SDIN, SCLK. SPI-3 uses a 9 bit byte frame where first bit is DC
• The bus interfaces are all supported by the ST7628 display driver software package.

Special ST7628 hardware features:

• 0-180, 90-270 degree frame buffer rotation with hardware support. Portrait mode, landscape mode.
• Software controlled intensity regulation.
• Full driver software support.

Display controller vendor

• Sitronix Technology Corp. https://www.sitronix.com.tw