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Description
The SED9421COB is a electronic component model that falls under the category of IC Chips. It is a color/monochrome LCD graphics controller with an embedded 40K Byte SRAM display buffer. This model offers high integration, low cost, and low power consumption, making it an ideal choice for embedded markets such as Office Automation equipment, Mobile Communications devices, and Hand-Held PCs where board size and battery life are major concerns.
Specifications and features
- Memory Interface: Embedded 40K byte SRAM display buffer
- CPU Interface: Direct support of the following interfaces: Hitachi SH-3, Hitachi SH-4, Motorola M68K, MPU bus interface with programmable READY. It also allows direct memory mapping of internal registers and has a CPU write buffer.
- Display Support: It supports 4/8-bit monochrome LCD interface, 4/8-bit color LCD interface, and 16-bit color LCD interface with minimal external circuitry. It can drive single-panel, single-drive passive displays, dual-panel, dual-drive passive displays, and also supports Active Matrix TFT / TFD interface. Some example resolutions include 640x480 at a color depth of 1 bpp, 640x240 at a color depth of 2 bpp, 320x240 at a color depth of 4 bpp, and 240x160 at a color depth of 8 bpp.
- Clock Source: It has a single clock input for both pixel and memory clocks. The SED9421COB's clock source can be internally divided down for a higher frequency clock input. It also supports dynamic switching of memory clocks in portrait mode.
- Display Modes: The SED9421COB offers hardware portrait mode for direct hardware rotation of display image for portrait mode display. It supports 1/2/4 bit-per-pixel (bpp) and 2/4/16-level grayscale display, as well as 1/2/4/8 bit-per-pixel and 2/4/16/256-level color display. It can provide up to 16 shades of gray by FRM on monochrome passive LCD panels and 256 simultaneous of 4096 colors on color passive and active matrix LCD panels. The split screen display allows two different images to be simultaneously displayed, and it also supports virtual display (displays images larger than the panel size through the use of panning).
- Power Down Modes: The SED9421COB has hardware and software Suspend modes, along with LCD power-down sequencing.
- General Purpose IO Pins: There are five General Purpose Input / Output pins available on this model.
- Operating Voltage: The operating voltage range for the SED9421COB is 2.7 volts to 5.5 volts.
- Package: This electronic component model comes in an 80-pin QFP14 surface mount package.
Application Scenarios
The SED9421COB is designed to be used in various embedded markets such as Office Automation equipment, Mobile Communications devices, and Hand-Held PCs. Its low power consumption and small board size make it a suitable choice for these applications.
Comparison
Advantages- High integration, providing a low cost, low power, single chip solution
- Supports various display interfaces and resolutions
- Offers hardware portrait mode and split screen display
- Provides power down modes for power saving
- Compatible with multiple CPU interfaces
- Wide operating voltage range
- Small package size for space-constrained applications
Disadvantages- Not suitable for applications that require complex graphics processing
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Datasheet
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Shopping guide
Delivery period:
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Popular parts of the same kind
- Datasheet: Download SED9421COB
- Chipdatas Part: CD94-SED9421COB
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/02 11:46 +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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The fee is charged according to the rule of PayPal.
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