SCDQ5541P/Q/R, SCDQ5542P/Q/R, SCDQ5543P/Q/R, SCDQ5544P/Q/R

2010-04-13

7

Dot Matrix Format

Suggested Display Mounting

SIP PAckage

Operation of the SCDQ554XX

The SCDQ554XX display consists of a CMOS IC containing con-

trol logic and drivers for four 5 x 5 characters. These components

are assembled in a compact plastic package.

Individual LED dot addressablity allows the user great freedom in

creating special characters or mini-icons. The User Definable

Character Set examples illustrate 200 different character and sym-

bol possibilities. Each example has the hexadecimal code required

to display characters in a horizontal or vertical format. See Figures

above, Suggested Display Mounting, for the display positioning.

Generally, the contacts should be on the right side of the display

for the vertical format and on the top of the display for the horizon-

tal format.

Character Address, Row, & Column Data Map

1. Viewed from the LED side of the display with the display in a

horizontal position.

2. The row address and column data are typical for all character posi-

tions. The LED is on when the data bit = 1 and off when the data

bit = 0.

Suggested Display Mounting

90° SIP Connector / Header Packages

The serial data interface provides a highly efficient interconnection

between the display and the mother board. The SCDQ554XX

requires only three input lines as compared to 15 for an equivalent

four character parallel input part.

The on-board CMOS IC is the electronic heart of the display. The

IC accepts decoded serial data, which is stored in the internal

RAM. Asynchronously the RAM is read by the character multi-

plexer at a strobe rate that results in a flicker free display. shows

the three functional areas of the IC. These include: the input serial

data register and control logic, a 100 bits two port RAM, and an

internal multiplexer/display driver.

IDOD5012

3.4 (0.134)

0.79 (0.031)

IDPA5101

PCB

at the top of the display

Pins/Conector located

Pins/Conector located

at the top of the display

SIP Package

IDPA5106

Char

0

Char

1

Char

2

Char

3

Pins/Conector located

at the top of the display

Col3(D3)

Col4(D4)

Col2(D2)

Col1(D1)

Col0(D0)

Rw3

Rw2

Rw1

Rw0

Rw4

IDPA5102

PCB

PCB

90˚ SIP Connector/Header Packages