LASCAR OEM4-LED User Manual

OEM 4-LED 4 Digit LED Data Display Module

PRODUCT DESCRIPTION

This low cost sub-miniature LED module is ideally suited for high volume data display applications. It features
an exceptionally large display in a miniature package and includes 4 digits and 3 decimal points. The module
accepts aclocked serialbitstream which corresponds with the segments tobe displayed, and a data enable input
to latch the dataonto theLEDs and up to 4 external LEDs. The use of low current displaytechnology means this
LED product can be considered for battery poweredapplications. TheOEM 4-LED is dimensionally compatible
with other displaysin the OEM family. Connection tothe module is viatwo rows ofpins 0.1“ (x 0.5”)pitch.

FEATURES

•8

mm (0.31") Digit Height

• 20mA (typ) @ +5V d.c. Power Supply

• Serial Data Input

• All Segments Addressable

• User Selectable Decimal Points

• Drives up to 4 External LEDs

• DIL Pin Connection 0.1" Pitch

Module shown actual size

This datasheet should be read in conjunction
with thePS035 device datasheet. A link to this
is available at on
the OEM 4-LEDproduct information page.

TYPICAL APPLICATIONS

• High Volume, Low Cost Systems

• Handheld Indication

• Panel-Mount Indication

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ORDERING INFORMATION

Stock Number

Standard Display OEM 4-LED

ELECTRICAL SPECIFICATIONS

Specification Min. Typ. Max. Unit

Supply voltage 4 5 9 V d.c.
Supply current 20 mA
Operating temperature range -10 60 °C
Storage temperature range -10 60 °C

LED

V 3 V d.c.
Clock input frequency 500 kHz

Unless otherwise noted,specifications apply atT =25°C, V =5Vd.c.

A supply

SAFETY

To comply with the Low Voltage Directive(LVD 93/68/EEC), input voltages to the module’s pins must not exceed
60Vdc. The usermustensurethat the incorporation of thepanel meter into theuser ’s equipmentconforms tothe
relevant sections of BS EN 61010 (Safety Requirements for Electrical Equipment for Measuring, Control and
Laboratory Use).

LASCAR ELECTRONICS LTD.
MODULE HOUSE
WHITEPARISH
WILTSHIRE SP5 2SJ
UK
TEL: [phone]
FAX: [phone]
E-mail: [e-mail]

Specifications liable to change without prior warning OEM 4-LED Issue 1 September/2004 M.C. Applies to OEM 4-LED/1

LASCAR ELECTRONICS INC.
3750 West 26th Street
Erie
PA 16506
USA
TEL: [phone]
FAX: [phone]
E-mail: [e-mail]

LASCAR ELECTRONICS (HK) LIMITED
FLAT C, 5/FL., LUCKY FTY. BLDG.
63-65 HUNG TO ROAD
KWUN TONG KOWLOON
HONG KONG
TEL: [phone]
FAX: [phone]
E-mail: [e-mail]

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OEM 4-LED 4 Digit LED Data Display Module

DIMENSIONS

All dimensions in mm (inches)

0.5mm (0.02)

23.4 (0.92)

5.4 (0.21)

square post

6.35

(0.25)

1.27 (0.05)

8.0 (0.31)

Digit Height

16.4 (0.65)

18.6 (0.73)

Width of digits

FUNCTIONAL BLOCK DIAGRAM

V+ VLED

B

......

35 Output Buffers

E

D

Ck

......

35 Latches

......

35 Bit Shift Register

0V

RESET

LOAD

Power On

Reset

5.5 (0.22)

LED1
LED2
LED3
LED4

R

2.54 (0.10)

PIN CONFIGURATION (rear view)

7

6

(Module viewed from the rear)

LED2

LED1

B

E

LED3

V

LED

Ck

D

12

R

LED4

V+

0V

1

Pin 1 identifier dot on
bottom side of module

12.7 (0.50)

PIN FUNCTIONS

1. 0V Negative power supply to the display.

2. V+ Positive powersupply to the display.

3. D Serial data input.

4. Ck Clockinput.

5. E Data enable input (actively held low).

6. B Brightnesscontrol (see Applications).

7. LED1 Drive pin for external LED (Bit33).

8. LED2 Drive pin for external LED (Bit34).

9. LED3 Drive pin for external LED (Bit32).

10. V Displaydrive voltage.

11. LED4 Drive pin for external LED (Bit35).

12. R Reset - take high to reset.

Specifications liable to change without prior warning OEM 4-LED Issue 1 September/2004 M.C. Applies to OEM 4-LED/1

LED

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