SED1354 Datasheet, PDF (19/472 Pages) Epson Company – Color Graphics LCD/CRT Controller

Epson Research and Development
Vancouver Design Center
Page 11
1 Introduction
1.1 Scope
This is the Functional Specification for the SED1354 Series Color Graphics LCD/CRT Controller
Chip. Included in this document are timing diagrams, AC and DC characteristics, register descrip-
tions, and power management descriptions. This document is intended for two audiences: Video
Subsystem Designers and Software Developers.
1.2 Overview Description
The SED1354 is a low cost, low power color/monochrome LCD/CRT controller interfacing to a
wide range of CPUs and LCDs. The SED1354 architecture is designed to meet the requirements of
embedded markets such as Office Automation equipment, Mobile Communications devices and
Hand-Held PCs where Windows CE may serve as a primary operating system.
The SED1354 supports LCD interfaces with data widths up to 16 bits. Using Frame Rate Modulation
(FRM), it can display 16 shades of gray on monochrome LCD panels, up to 4096 colors on passive
color LCDs, and 64K colors on active matrix TFT LCD panels. CRT support is handled through the
use of an external RAMDAC interface allowing simultaneous display of both the CRT and LCD
panel. A 16-bit memory interface supports up to 2M bytes of FPM-DRAM or EDO-DRAM. Flexible
operating voltages from 2.7V to 5.5V provide for very low power consumption.
Hardware Functional Specification
Issue Date: 99/05/18
SED1354
X19A-A-002-16