Four Character Smart

Alphanumeric Displays

HDLX-1414 Series

Technical Data

Features

• Dot Matrix Replacement of

HPDL-1414

• Smart Alphanumeric Display

Built-in RAM, ASCII

Decoder, and LED Drive

Circuitry

• 128 ASCII Character Set

• End Stackable

• Categorized for Luminous

Intensity; Yellow and Green

Categorized for Color

• Low Power and Sunlight

Viewable AlGaAs Versions

• Wide Viewing Angle

(50˚ Typical)

Description

These are 3.7 mm (0.145 inch)

four character 5 x 7 dot matrix

displays driven by an on-board

CMOS IC. These displays are pin

for pin compatible with the

HPDL-1414. The IC stores and

decodes 7-bit ASCII data and

displays it in an easy to read

5 x 7 font. Multiplexing and LED

drive circuitry is also included in

the display, and fast setup and

hold times allow it to interface

easily with common

microprocessors.

The address and data inputs can

be directly connected to

microprocessor address and data

buses.

The HDLX-1414 offers a larger

character set than the

HPDL-1414. Lower case letters

and special symbols are now

offered, made possible by the

5 x 7 dot matrix character layout.

The difference between the

sunlight viewable HDLS-1414 and

the low power HDLU-1414 lies in

the brightness level. The sunlight

viewable version is internally set

to provide high intensity

characters. The low power

version uses the same bright LED

technology, but reduces the

current through each LED to a

much lower level, and maintains

an intensity comparable to the

HDLO-1414.

ESD Warning: Standard CMOS Handling Precautions should be observed with

the HDLX-1414.

Devices

AlGaAs Red

High Efficiency Red

Orange

Yellow

Green

HDLS-1414 (sun. view.)

HDLO-1414

HDLA-1414

HDLY-1414

HDLG-1414

HDLU-1414 (low power)