0.180’’ 4-Character 5x7 Dot Matrix Serial Input
Dot Addressable Intelligent Display® Devices
Lead (Pb) Free Product / RoHS Compliant
SCE574x
SCE574xP-SIP
SCE574xQ-SIP with right angle bends
Standard Red SCE5740
Green
SCE5743
DESCRIPTION
Yellow SCE5741
High Efficiency Green SCE5744
Super-red SCE5742
Orange SCE5745
The SCE574x is a four digit, dot addressable 5 x 7 dot
matrix, serial input, alphanumeric Intelligent Display
device. The four digits are packaged in a rugged, high
quality, optically transparent, plastic 14 pin DIP with
2.54 mm (0.1") pin spacing.
The SCE574xP is a SIP version of SCE574x. The
SCE574xQ is also a SIP version of the SCE574x but the
leads are at right angles to the package so that the part
can be mounted vertically. The SIP version parts have
only 7 pins. The SIP parts do not have the option of using
an external clock. All the electrical descriptions for the
SCE574x apply to the SIP versions except the allusions
to the external clock.
The on-Board CMOS has a 140 bit RAM, one bit associ-
ated with one LED, each to generate User Defined Char-
acters. In Power Down Mode, quiescent current
is < 50 µA.
The SCE574x 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 SCE574x 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 synchronization effects
found in high vibration environments such as avionic
equipment.
A divide by 16 prescalar is built into the part and can be
accessed by software to reduce the multiplex frequency if
a high speed external clock is used.
ALSO AVAILABLE WITH OPTIONS
(see
page 8)
• SCE574xP-SIP
• SCE574xQ-SIP with right angle bends
FEATURES
• Four 4.57 mm (0.180") 5 x 7 Dot Matrix Characters in
Red, Yellow, Super-red, Green, High Efficiency Green,
Orange
• Optimum Display Surface Efficiency
(display area to package ratio)
• High Speed Data Input Rate: 5.0 MHz
• ROMless Serial Input, Dot Addressable Display
Ideal for User Defined Characters
• Built-in Decoders, Multiplexers and LED Drivers
• Wide Viewing Angle, X Axis ± 55°, Y Axis ± 55°
ATTRIBUTES
– 140 Bit RAM for User Defined Characters
– Eight Dimming Levels plus eight fine dimming lev-
els.
– Power Down Model (< 250 mW)
– Hardware/Software Clear Functions
– External Clock-SCE574x only
2006-03-30
1
SCE5740, SCE5741, SCE5742, SCE5743, SCE5744, SCE5745
Maximum Ratings
Parameter
Operating temperature range
Storage temperature range
DC Supply Voltage
Input Voltage Levels Relative to GND
Solder Temperature
1.59 mm (0.063“) below seating plane, t < 5.0 s
Relative Humidity
ESD (100 pF, 1.5 kΩ)
Input Current
Maximum Number of LEDs on at 100% Brightness
Maximum Power Dissipation
V
Z
T
S
Symbol
T
op
T
stg
V
CC
Value
– 40 … + 85
– 40 … + 100
-0.5 to + 7.0
-0.5 to
V
CC
+0.5
260
85
2.0
130
64
0.6
W
Unit
°C
°C
V
V
°C
%
kV
mA
Optical Characteristics at 25°C
(V
CC
=5.0 V at 100% brightness level, viewing angle: X axis ± 55°, Y axis ± 65°)
Description
Symbol
Values
High Efficiency Green
SCE5744
Unit
Super-red
SCE5742
Red
SCE5740
Yellow
SCE5741
Green
SCE5743
Luminous Intensity
Peak Wavelength
Dominant Wavelength
(min.)
I
V
(typ.)
(typ.)
λ
peak
(typ.)
λ
dom
30
60
655
639
60
150
583
585
60
150
630
620
60
150
565
573
80
180
568
574
60
150
605
610
Orange
SCE5745
µcd/dot
µcd/dot
nm
nm
Notes:
1. Dot to dot intensity matching at 100% brightness is 1.8:1.
2. Displays within a given intensity category have an intensity matching of 1.5:1 (max.).
2006-03-30
3
SCE5740, SCE5741, SCE5742, SCE5743, SCE5744, SCE5745
Electrical Characteristics
(over operating temperature)
Parameter
V
CC
I
CC
(Power Down)
1) 2)
3)
Min.
4.5
—
90
—
—
Typ.
5.0
—
115
—
—
—
—
768
—
Max.
5.5
50
130
–10
10
—
1.5
1086
45
Units
V
µA
mA
µA
µA
V
V
Hz
°C/W
Conditions
—
V
CC
=5.0 V, all inputs=0 V or
V
CC
V
CC
=5.0 V, “#” displayed in all 4 digits
at 100% brightness at 25°C
V
CC
=5.0 V,
V
IN
=0 (all inputs)
V
CC
=V
IN
=5.0 V (all inputs)
V
CC
=4.5 V to 5.5 V
V
CC
=4.5 V to 5.5 V
—
—
I
CC
4 digits 20 dots/character
I
IL
Input current
I
IH
Input current
V
IH
V
IL
Row Multiplex Rate
θ
JC-pin
3.5
—
375
—
Notes:
1)
Unused inputs must be tied high.
2)
External oscillator must be stopped.
3)
Peak current
5
/
3
x
I
CC.
Electrical Characteristics for SCE574x only
Parameter
I
OH
(CLK I/O)
I
OL
(CLK I/O)
F
ext
External Clock Input
Frequency
F
osc
Internal Clock Input
Frequency
Clock I/O Bus Loading
Clock Out Rise Time
Clock Out Fall Time
Min.
—
—
120
120
—
—
—
Typ.
–28
23
—
—
—
—
—
Max.
—
—
3
347
240
500
500
Units
mA
mA
MHz
kHz
pF
ns
ns
Conditions
V
CC
=4.5 V,
V
OH
=2.4 V
V
CC
=4.5 V,
V
OL
=0.4 V
V
CC
=5.0 V, CLKSEL=0
V
CC
=5.0 V, CLKSEL=1
—
V
CC
=4.5 V,
V
OH
=2.4 V
V
CC
=4.5 V,
V
OH
=0.4 V
Input/Output Circuits
Figures „Inputs“ and „Clock I/O“ show the input and output resis-
tor/diode networks used for ESD protection and to eliminate sub-
strate latch-up caused by input voltage over/under shoot.
Inputs
Clock I/O (SCE574X only)
V
CC
1 k
Ω
V
CC
input/output
Input
1 KΩ
GND
IDCD5021
GND
4
2006-03-30
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
