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1.0
GENERAL INFORMAT ION
1.1
Introduction
This specification describes the parallel interface Daystar Nova model 03858–21–0105, 4–line supertwist liquid
crystal display (LCD) with 40 characters per line.
Model Number Designation System
03858
Transflective STN
LCD w/EL Backlight
* Parallel standard, Serial optional
1.2
Application
Daystar Nova modules provide alphanumeric information which is easily readable in high ambient light or in
darkness with optional backlight. The low power requirements of the modules make them suitable for portable
battery operated equipment. The wide operating temperature range (–30° to +80°C) is ideal for most outdoor
applications. The choice of a preferential viewing hemisphere is not necessary because of the excellent wide
angle viewing characteristics of the new Super Bi–refringent Effect (SBE) liquid crystal cell used in this display.
For applications where the display is remotely located up to 50 feet from the host processor, the serial data
input option should be used. The serial model is described in IEE specification S3858–21–205.
1.3
Description
The Daystar Nova module is a self–contained 1/16 multiplexed unit. A simple parallel interface is provided and
can be configured as either 4 or 8 bits. The on–board microprocessor controls the display, multiplexing and
character decoding. The temperature compensation circuitry guarantees that the viewing characteristics are
optimized for all temperatures.
The SBE liquid crystal cell used in this display has a golden–green background with dark blue–black
characters.
The on–board character generator ROM generates 192 types of alphanumeric, numeric, katakana characters
and symbols. In addition, a character generator RAM allows the user to define eight additional characters.
A variety of high level functions allow the programmer to operate the display with simple and straightforward
software routines. One such feature automatically increments the character display position after each
character is written.
A single +5 Volt nominal power supply is required for operation of the LCD module. The unit operates from 4.50
Volts to 5.50 Volts. The typical power requirement for the module is 75mW.
The module weighs 8.9 oz. (252 grams).
Industrial Electronic Engineers, Inc.
Van Nuys, California
–
21
–
4x40 Format
Reserved
0
1
1 =
Parallel Data Input
2 = Serial Data Input
SIZE
CODE IDENT NO.
A
05464
Scale: NONE
0
*
0 = External
Backlight Power
S03858–21–0105
Rev
B
Sheet 5
5
5 = Aviation
Green Color
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