sed1374 ETC-unknow, sed1374 Datasheet - Page 7

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sed1374

Manufacturer Part Number
sed1374
Description
Sed1374 Embedded Memory Color Lcd Controller
Manufacturer
ETC-unknow
Datasheet

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SED1374 EMBEDDED MEMORY COLOR LCD CONTROLLER
Memory Interface
CPU Interface
Display Support
Clock Source
X26A-C-001-05
DESCRIPTION
The SED1374 is a color/monochrome LCD graphics controller with an embedded 40K Byte SRAM display buffer.
The high integration of the SED1374 provides a low cost, low power, single chip solution to meet the requirements
of embedded markets such as Office Automation equipment, Mobile Communications devices, and Hand-Held
PCs where board size and battery life are major concerns.
Products requiring a “Portrait” display can take advantage of the Hardware Portrait Mode feature of the SED1374.
Virtual and Split Screen are just some of the display modes supported. The above features, combined with the
Operating System independence of the SED1374, make it the ideal solution for a wide variety of applications.
FEATURES
divided down for a higher frequency clock input.
mode.
4/8-bit monochrome LCD interface.
4/8-bit color LCD interface.
16-bit color LCD interface with minimal external
curcuitry.
Single-panel, single-drive passive displays.
Dual-panel, dual-drive passive displays.
Active Matrix TFT / TFD interface.
Example resolutions:
Embedded 40K byte SRAM display buffer.
Direct support of the following interfaces:
Direct memory mapping of internal registers.
CPU write buffer.
Single clock input for both pixel and memory clocks.
The SED1374 clock source can be internally
Dynamic switching of memory clocks in portrait
Hitachi SH-3.
Hitachi SH-4.
Motorola M68K.
MPU bus interface with programmable READY.
640x480 at a color depth of 1 bpp
640x240 at a color depth of 2 bpp
320x240 at a color depth of 4 bpp
240x160 at a color depth of 8 bpp
S AV I N G
ENERGY
EPSON
Display Modes
Power Down Modes
General Purpose IO Pins
Operating Voltage
Package
display.
different images to be simultaneously displayed.
than the panel size through the use of panning).
available.
Up to 16 shades of gray by FRM on monochrome
passive LCD panels.
256 simultaneous of 4096 colors on color passive
and active matrix LCD panels.
of display image for portrait mode display.
Hardware Portrait Mode: direct hardware rotation
1/2/4 bit-per-pixel (bpp), 2/4/16-level grayscale
1/2/4/8 bit-per-pixel, 2/4/16/256-level color display.
Split screen display for all panel modes allows two
Virtual display support (displays images larger
Hardware and software Suspend modes.
LCD power-down sequencing.
Five General Purpose Input / Output pins are
2.7 volts to 5.5 volts.
80-pin QFP14 surface mount package.
GRAPHICS
SED1374
October 1998
1

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