Industrial Electronic Engineers, Inc.
SIZE
A
CODE IDENT NO.
05464
SL530-X4X0
Van Nuys, California
SCALE N/A
REV
C
SHEET 3 of 21
05/01/02
1.0
GENERAL DESCRIPTION
1.1
Introduction
This specification describes the interface requirements and features of a 4 line Liquid Crystal Display (LCD) ,
40 characters wide. The characters are formed using a 5x8 dot matrix.
1.2
Application
This unit may be used as a console display which provides alphanumeric information that is easily readable in
high ambient light. It is ideal for point-of-sale terminals, office computers, and a wide range of business and
industrial equipment.
1.3
Special Features
Minimum depth
4 User defined characters
Power and data on same connector
ASCII + 7 additional character sets
5.0VDC
±
5%
EIA-232C data interface
Low cost
EIA-422A data interface
Shielded I/O Connector standard
Software selectable blink
Wide operating temperatures (-20 to +70
°
)
Software self test
1.4
Description
This LCD is a self-contained multiplexed unit which provides a simple interface to a microprocessor system.
The display is available with one I/O connector and a choice of EIA-232C/EIA-422A interfacing.
This unit consists of a liquid crystal display cell and a minimal amount of electronic hardware. All display
characters and control codes can be accessed in a 8-bit format. Primary complexity is contained within the
microprocessor software, which controls all display functions.
A single 5VDC
±
5% power supply is required for operation. At +5.0VDC, total power is approximately .30
watts and current is about 60mA.
Data is entered serially at 9600 Baud at rates determined by execution times.
The large characters are easily readable, even in direct sunlight and provide comfortable short or long-term
viewing.
Figures 3 through 10 depict character sets used in this module.
