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)
2
Absolute Maximum Ratings
Supply Voltage, V
DD
to Ground
[1]
................................. 0.5 V to 7.0 V
Input Voltage, Any Pin to Ground ........................ 0.5 V to V
DD
+0.5 V
Free Air Operating Temperature Range, T
A
................ 40C to +85C
Storage Temperature, T
S
.......................................... 40C to +100C
CMOS IC Junction Temperature ............................................... +150C
Relative Humidity (non-condensing) at +65C .............................. 85%
Wave Solder Temperature,
1.59 mm (0.063 in.) below Body ............................ 250C for 3 secs
ESD Classification, R = 1.5 k
, C = 100 pF ....... Class 1 (0 1999 V)
Note:
1. Maximum Voltage is with no LEDs illuminated.
Package Dimensions
PIN NO.
FUNCTION
PIN NO.
FUNCTION
1
2
3
4
5
6
7
8
9
10
11
12
GROUND
D0 DATA INPUT
D1 DATA INPUT
D2 DATA INPUT
D3 DATA INPUT
D6 DATA INPUT
D5 DATA INPUT
D4 DATA INPUT
WR WRITE
A1 DIGIT SELECT
A0 DIGIT SELECT
VDD
17.66
(0.695)
4.45
(0.175)
20.12
(0.792)
9.14
(0.360)
0.51 0.13
(0.020 0.005)TYP.
6.10
(0.240)
2.54
(0.100)
TYP.
15.30
(0.600)
0.25 0.13
(0.010 0.005)
TYP.
DIMENSIONS ARE IN MILLIMETERS (INCHES).
PIN 1 IDENTIFIER
4.10
(0.160)
HDLX-1414
YYWW X Z
PART NUMBER
LUMINOUS INTENSITY
COLOR BIN [3]
DATE CODE (YEAR, WEEK)
0.39
(0.015)
TYP.
(2X)
PIN 1
TYP.
3
Character Set
ASCII
CODE
D0
D1
D2
D3
HEX
0
0
0
0
0
D6
D5
D4
1
0
0
0
1
0
1
0
0
2
1
1
0
0
3
0
0
1
0
4
1
0
1
0
5
0
1
1
0
6
1
1
1
0
7
0
0
0
1
8
1
0
0
1
9
0
1
0
1
A
1
1
0
1
B
0
0
1
1
C
1
0
1
1
D
0
1
1
1
E
1
1
1
1
F
0
0
0
0
0
0
1
1
0
1
0
2
0
1
1
3
1
0
0
4
1
0
1
5
1
1
0
6
1
1
1
7
NOTES: 1 = HIGH LEVEL
0 = LOW LEVEL
4
Recommended Operating Conditions
Parameter
Symbol
Min.
Typ.
Max.
Units
Supply Voltage
V
DD
4.5
5.0
5.5
V
AlGaAs Red HDLU-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
I
V
1.2
3.1
mcd
"*" illuminated in all four digits.
Intensity per digit,
19 dots ON per digit.
Character Average
Peak Wavelength
PEAK
645
nm
Dominant
D
637
nm
Wavelength
[2]
Electrical/Optical Characteristics over Operating Temperature Range
4.5 < V
DD
< 5.5 V (unless otherwise specified).
25C
[1]
Parameter
Symbol
Min.
Typ.
Max.
Max.
Units
Test Conditions
Blank Current
I
DD
(blnk)
1.0
4.0
mA
All Digits Blanked
Input Current
I
I
40
10
A
V
IN
= 0 V to V
DD
V
DD
= 5.0 V
Input Voltage High
V
IH
2.0
V
DD
V
Input Voltage Low
V
IL
GND
0.8
V
I
DD
4 Digits
I
DD
(#)
110
130
160
mA
"#" ON in all four
20 dots/character
[2,3]
locations
Notes:
1. V
DD
= 5.0 V.
2. Average I
DD
measured at full brightness. Peak I
DD
= 28/15 x Average I
DD
(#).
3. I
DD
(#) max. = 130 mA, 150C IC junction temperature and V
DD
= 5.5 V.
Optical Characteristics at 25C
[1]
V
DD
= 5.0 V at Full Brightness
AlGaAs Red HDLS-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
I
V
4.0
12.7
mcd
"*" illuminated in all four digits.
Intensity per digit,
19 dots ON per digit.
Character Average
Peak Wavelength
PEAK
645
nm
Dominant
D
637
nm
Wavelength
[2]
5
High Efficiency Red HDLO-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
I
V
1.2
3.5
mcd
"*" illuminated in all four digits.
Intensity per digit,
19 dots ON per digit.
Character Average
Peak Wavelength
PEAK
635
nm
Dominant
D
626
nm
Wavelength
[2]
Orange HDLA-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
I
V
1.2
3.5
mcd
"*" illuminated in all four digits.
Intensity per digit,
19 dots ON per digit.
Character Average
Peak Wavelength
PEAK
600
nm
Dominant
D
602
nm
Wavelength
[2]
Yellow HDLY-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
I
V
1.2
3.7
mcd
"*" illuminated in all four digits.
Intensity per digit,
19 dots ON per digit.
Character Average
Peak Wavelength
PEAK
583
nm
Dominant
D
585
nm
Wavelength
[2]
Green HDLG-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
I
V
1.2
5.6
mcd
"*" illuminated in all four digits.
Intensity per digit,
19 dots ON per digit.
Character Average
Peak Wavelength
PEAK
568
nm
Dominant
D
574
nm
Wavelength
[2]
Notes:
1. Refers to the initial case temperature of the device immediately prior to the light measurement.
2. Dominant wavelength,
D
, is derived from the CIE chromaticity diagram, and represents the single wavelength which defines the
color of the device.
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