SED1520F0A

■ DESCRIPTION

The SED1330 is a CMOS low-power dot matrix liquid crystal graphic display controller. The device stores in external RAM display data sent by an 8-bit microcomputer, and generates all the signals required by the LCD drivers. The LSI incorporates an internal character generator ROM which supports user- defined characters (also an external CGROM can be supported).
The SED1330 can be interfaced to high-speed microprocessors such as the Intel family or Motorola family. The controller supports a set of rich commands that will allow the user to create a layered display of characters and graphics.
Also, the controller functions as a pipeline buffer between the MPU and display memory so that low-cost, medium-speed SRAM can be used.

■ FEATURES

• CMOS low-power graphic and character display controller
• Selectable MPU interface is compatible with both the Intel family and the Motorola family
• Smooth scrolling support:
Horizontal and vertical scroll
Scrolling of selected areas of the display
• Multimode display:
2 layers of overlapping character and graphics
3 layers of overlapping graphics
• Selectable display synthesis:
Inverse video
Flashing display, cursor on/off/blink
Under and bar cursor, block cursor
Simple animation
• Programmable cursor
• Internal character generator ROM
• Supports external character generator ROM:
8 × 8 or 8 × 16 pixel characters
Allows mixing of ROM and RAM character sets
• Supports 64K bytes of memory: 2 of 32K × 8 100ns SRAM or 8 of 8K × 8 100ns SRAM
• Display duty .................................. 1/2 to 1/256
• Low power dissipation ................ 5mA (typical)
0.05µA (typical), standby
• Logic power supply ........................ 4.5 to 5.5V
• Package ................Plastic QFP5-60 pin (FBA)
Plastic QFP6-60 pin (FBB)