SCF5740 Datasheet, PDF (1/12 Pages) Siemens Semiconductor Group – 0.270” 4-Character, 5x7 Dot Matrix Serial Input Dot Addressable Intelligent Display

STANDARD RED SCF5740
HIGH EFFICIENCY RED SCF5742
HIGH EFFICIENCY GREEN SCF5744
0.270” 4-Character, 5x7 Dot Matrix
Serial Input Dot Addressable Intelligent Display™
Package Dimensions in Inches (mm)
.157 –.007
(3.99 –.18)
.325
(8.26)
.175
(4.45)
.790 –.010
(20.07 –.25)
.270
(6.86)
.600 –.020
(15.25 –.51)
FEATURES
• Four 0.270” (6.85 mm) 5 x 7 Dot Matrix Characters
in Red, High Efficiency Red, High Efficiency Green
• Optimum Display Surface Efficiency (display area
to package ratio)
• High Speed Data Input Rate: 5 MHz
• ROMless Serial Input, Dot Addressable Display
Ideal for User Defined Characters
• Built-in Decoders, Multiplexers and LED Drivers
• Readable from 6 Feet (1.8 meters)
• Wide Viewing Angle, X Axis ±55°, Y Axis ±55°
• Attributes
– 140 Bit RAM for User Defined Characters
– Eight Dimming Levels
– Power Down Model (<250 µW)
– Hardware/Software Clear Functions
– Internal or External Clock
Pin 1
Indicator
1.300 max.
(33.02)
EIA Date Code
Luminous Intensity Code
SCF574X
SIEMENS
Z _{.276 max.}
YYWW _{(7.0) max.}
.100 –.015
(2.54 –.38)
.145 –.015
(3.68 –.38)
.160 –.020
(4.06) –.51)
.018 X .012
(.46 X .30)
(Leads 22 plcs.)
DESCRIPTION
The SCF574X is a four digit, dot addressable 5x7 dot matrix,
serial input, alphanumeric Intelligent Display. The four digits are
packaged in a rugged, high quality, optically transparent, plastic
22 pin DIP with 0.1” pin spacing.
The on-board CMOS has a 140 bit RAM, one bit associated with
one LED, each to generate User Defined Characters. In Power
Down Mode, quiescent current is <50 µA.
The SCF574X is designed for work with the serial port of most
common microprocessors. Data is transferred into the display
through the Serial Data Input (DATA), clocked by the Serial Data
Clock (SDCLK), and enabled by the Load Input (LOAD).
The Clock I/O (CLK I/O) and Clock Select (CLK SEL) pins offer
the user the capability to supply a high speed external multiplex
clock. This feature can minimize audio in-band interference for
portable communication equipment or eliminate the visual
sychronization effects found in high vibration environments such
as avionic equipment.
2–200