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Description
The SED1278F0B is a CMOS low-power dot matrix liquid crystal graphic display controller. It is designed to store display data sent by an 8-bit microcomputer in external RAM and generate all the signals required by the LCD drivers. The controller has an internal character generator ROM that supports user-defined characters, and it also supports an external CGROM. The SED1278F0B can be interfaced with high-speed microprocessors like the Intel and Motorola families. It offers a set of rich commands to create a layered display of characters and graphics. Additionally, it functions as a pipeline buffer between the MPU and display memory, allowing the use of low-cost, medium-speed SRAM.
Specifications and features
- CMOS low-power graphic and character display controller
- Selectable MPU interface compatible with Intel and Motorola families
- 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) in standby
- Logic power supply: 4.5 to 5.5V
- Packaging: Plastic QFP5-60 pin (FBA), Plastic QFP6-60 pin (FBB)
Application Scenarios
The SED1278F0B controller is widely used in electronic devices that require a dot matrix liquid crystal graphic display. Some possible application scenarios include digital meters, industrial control panels, medical equipment, and consumer electronics.
Comparison
Advantages- CMOS low-power design for energy efficiency
- Supports both Intel and Motorola families for compatibility
- Rich commands for creating layered displays
- Allows mixing of ROM and RAM character sets
- Supports external character generator ROM
Disadvantages- Requires external RAM for display data storage
- May not be suitable for applications requiring high-speed SRAM
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download SED1278F0B
- Chipdatas Part: CD94-SED1278F0B
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/30 08:11 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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