HDLU-1414 [AGILENT]
Four Character Smart Alphanumeric Displays; 四个字符字母数字智能显示器
| 型号： | HDLU-1414 |
| 厂家： | 
AGILENT TECHNOLOGIES, LTD. |
| 描述： | Four Character Smart Alphanumeric Displays |
| 文件： | 总10页 (文件大小：102K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Four Character Smart
Alphanumeric Displays
Technical Data
HDLX-1414 Series
Features
Description
• Dot Matrix Replacement of
HPDL-1414
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
• 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
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
microprocessors.
• Wide Viewing Angle
(50˚ Typical)
The address and data inputs can
be directly connected to
microprocessor address and data
buses.
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.
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.
Devices
AlGaAs Red
High Efficiency Red
HDLO-1414
Orange
Yellow
Green
HDLS-1414 (sun. view.)
HDLU-1414 (low power)
HDLA-1414
HDLY-1414
HDLG-1414
ESD Warning: Standard CMOS Handling Precautions should be observed with
the HDLX-1414.
2
Package Dimensions
17.66
(0.695)
4.45
(0.175)
TYP.
0.25 ± 0.13
(0.010 ± 0.005)
TYP.
0.39
(0.015)
(2X)TYP.
15.30
(0.600)
9.14
(0.360)
20.12
(0.792)
PIN 1 IDENTIFIER
PART NUMBER
LUMINOUS INTENSITY
COLOR BIN [3]
DATE CODE (YEAR, WEEK)
HDLX-1414
PIN NO.
FUNCTION
PIN NO.
FUNCTION
GROUND
1
2
3
4
5
6
D
D
DATA INPUT
DATA INPUT
7
8
5
6.10
(0.240)
YYWW
X
Z
D
D
D
D
D
DATA INPUT
DATA INPUT
DATA INPUT
DATA INPUT
DATA INPUT
4
0
1
2
3
6
WR WRITE
9
A
A
DIGIT SELECT
DIGIT SELECT
10
11
12
1
4.10
(0.160)
0
PIN 1
V
DD
0.51 ± 0.13
(0.020 ± 0.005)
2.54
TYP.
TYP.
(0.100)
DIMENSIONS ARE IN MILLIMETERS (INCHES).
Absolute Maximum Ratings
[1]
Supply Voltage, V to Ground ................................. –0.5 V to 7.0 V
DD
Input Voltage, Any Pin to Ground ........................ –0.5 V to V +0.5 V
DD
Free Air Operating Temperature Range, T ................ –40˚C to +85˚C
A
Storage Temperature, T .......................................... –40˚C to +100˚C
S
CMOS IC Junction Temperature ...............................................+150˚C
Relative Humidity (non-condensing) at +65˚C .............................. 85%
Wave Solder Temperature,
1.59 mm (0.063 in.) below Body ............................ 250˚C for 3 secs
ESD Classification, R = 1.5 kΩ, C = 100 pF ....... Class 1 (0 – 1999 V)
Note:
1. Maximum Voltage is with no LEDs illuminated.
3
Character Set
D0
D1
D2
D3
0
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
ASCII
CODE
D6 D5 D4 HEX
0
0
0
0
1
0
0
1
0
0
1
1
0
1
2
3
1
1
0
0
0
1
4
5
1
1
1
1
0
1
6
7
NOTES: 1 = HIGH LEVEL
0 = LOW LEVEL
4
Recommended Operating Conditions
Parameter
Symbol
Min.
Typ.
Max.
Units
Supply Voltage
V
4.5
5.0
5.5
V
DD
Electrical/Optical Characteristics over Operating Temperature Range
4.5 < V < 5.5 V (unless otherwise specified).
DD
[1]
25˚C
Typ.
Parameter
Blank Current
Symbol
(blnk)
Min.
Max.
Max. Units
Test Conditions
I
1.0
4.0
10
mA
All Digits Blanked
DD
Input Current
I
–40
µA
V
V
= 0 V to V
= 5.0 V
I
IN
DD
DD
Input Voltage High
Input Voltage Low
V
2.0
V
V
V
IH
DD
V
GND
0.8
IL
I
4 Digits
I
(#)
110
130
160
mA
“#” ON in all four
locations
DD
DD
[2,3]
20 dots/character
Notes:
1. V = 5.0 V.
DD
2. Average I measured at full brightness. Peak I = 28/15 x Average I (#).
DD
DD
DD
3. I (#) max. = 130 mA, 150˚C IC junction temperature and V = 5.5 V.
DD
DD
[1]
Optical Characteristics at 25˚C
V
= 5.0 V at Full Brightness
DD
AlGaAs Red HDLS-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
Intensity per digit,
Character Average
I
4.0
12.7
mcd
“*” illuminated in all four digits.
19 dots ON per digit.
V
Peak Wavelength
Dominant
Wavelength
λ
645
637
nm
nm
PEAK
λ
D
[2]
AlGaAs Red HDLU-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
Intensity per digit,
Character Average
I
1.2
3.1
mcd
“*” illuminated in all four digits.
19 dots ON per digit.
V
Peak Wavelength
Dominant
Wavelength
λ
645
637
nm
nm
PEAK
λ
D
[2]
5
High Efficiency Red HDLO-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
Intensity per digit,
Character Average
I
1.2
3.5
mcd
“*” illuminated in all four digits.
19 dots ON per digit.
V
Peak Wavelength
Dominant
Wavelength
λ
635
626
nm
nm
PEAK
λ
D
[2]
Orange HDLA-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
Intensity per digit,
Character Average
I
1.2
3.5
mcd
“*” illuminated in all four digits.
19 dots ON per digit.
V
Peak Wavelength
λ
600
602
nm
nm
PEAK
Dominant
λ
D
[2]
Wavelength
Yellow HDLY-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
Intensity per digit,
Character Average
I
1.2
3.7
mcd
“*” illuminated in all four digits.
19 dots ON per digit.
V
Peak Wavelength
Dominant
Wavelength
λ
583
585
nm
nm
PEAK
λ
D
[2]
Green HDLG-1414
Parameter
Symbol
Min.
Typ.
Units
Test Conditions
Average Luminous
Intensity per digit,
Character Average
I
1.2
5.6
mcd
“*” illuminated in all four digits.
19 dots ON per digit.
V
Peak Wavelength
Dominant
Wavelength
λ
568
574
nm
nm
PEAK
λ
D
[2]
Notes:
1. Refers to the initial case temperature of the device immediately prior to the light measurement.
2. Dominant wavelength, λ , is derived from the CIE chromaticity diagram, and represents the single wavelength which defines the
D
color of the device.
6
AC Timing Characteristics over Operating
Temperature Range at V = 4.5 V
DD
Symbol
Parameter
Address Setup
Min.
10
Units
ns
t
AS
Address Hold
Data Setup
Data Hold
t
40
ns
AH
t
50
ns
DS
t
40
ns
DH
Write Time
t
75
ns
W
Timing Diagram
Enlarged Character Font
2.29 (0.090)
TYP.
2.0 V
0.8 V
A
0
– A
1
t
t
AH
0.56 (0.022)
AS
TYP.
2.0 V
0.8 V
WR
3.61 (0.142)
TYP.
t
W
2.0 V
0.8 V
D
0
– D
6
0.25 (0.010)
TYP.
t
t
DH
DS
0.51 (0.020)
TYP.
NOTES:
1. UNLESS OTHERWISE SPECIFIED, THE
TOLERANCE ON ALL DIMENSIONS
IS ± 0.254 mm (0.010").
2. DIMENSIONS ARE IN MILLIMETERS (INCHES).
7
Electrical Description
Mechanical and Electrical
Considerations
Pin Function
Description
The HDLX-1414 is a 12-pin DIP
package that can be stacked to
create a character array of any
size. The display is designed to
operate reliably in –40˚C to
+85˚C ambient temperatures.
\Write
(\WR, pin 3)
WR must be logic 0 to store data in the
display.
Address Inputs
A and A select a specific location in the
0 1
(A and A , pins
4 and 5)
display memory. Address 00 accesses the far
right character, and address 11 accesses the
far left position.
1
0
The HDLX-1414 is assembled by
die attaching and wire bonding
140 LEDs and a CMOS IC to a
high temperature printed circuit
board. A polycarbonate lens is
placed over the PC board,
creating a protective air gap over
the LED wire bonds. Backfill
epoxy environmentally seals the
display package. This package
construction makes the display
highly tolerant to temperature
cycling and allows wave
V
V
is the positive power supply input.
DD
DD
(pin 6)
Ground
(GND, pin 7)
Ground is the display ground.
Data Inputs
(D0–D6, pins 1,
2, 8-12)
D0–D6 are used to specify the input data
for the display.
\WR A1 A0 D6 D5 D4 D3 D2 D1 D0
Function
1
0
X
0
X
0
X
X
X
X
X
X
X
No Change
soldering.
Digit 0 ASCII Data (Right Most
Character)
ESD and Latchup
Protection
The inputs to the CMOS IC are
protected against static discharge
and input current latchup.
Write to
Character
RAM
0
0
0
0
1
1
1
0
1
Digit 1 ASCII Data
Digit 2 ASCII Data
Digit 3 ASCII Data (Left Most
Character)
However, for best results,
standard CMOS handling
Figure 1. Display Truth Table
0 = Logic 0; 1 = Logic 1; X = Do Not Care.
precautions should be used. Prior
to use, the HDLX-1414 should be
stored in antistatic tubes or
conductive material. During
assembly a grounded conductive
work area should be used, and
assembly personnel should wear
conductive wrist straps. Lab
coats made of synthetic material
should be avoided since they are
prone to static charge build-up.
Input current latchup can be
caused when the CMOS inputs
are subjected either to a voltage
Display Internal Block
Diagram
Data Entry
Figure 1 shows a truth table for
the HDLX-1414 display. Address
Figure 2 shows the HDLX-1414
display internal block diagram.
The CMOS IC consists of a 4 x 7
Character RAM, a 128-character
ASCII decoder and the refresh
circuitry necessary to
inputs A and A are used to
0
1
select the digit location in the
display. When A and A are both
logic low, data is loaded into the
right most character.
0
1
synchronize the decoding and
driving of four 5 x 7 dot matrix
characters.
Data inputs D –D are used to
0
6
load information into the display.
Data is latched into the given
character address on the rising
edge of the \WR signal. Data and
Address inputs must be held
stable during the write cycle to
ensure that correct data is stored
in the display.
Four 7-bit ASCII words are stored
in the Character RAM. The IC
reads the ASCII data and decodes
it vita the 128-character ASCII
decoder. This decoder includes
the 64-character set of the HPDL-
1414, 32 lower case ASCII
symbols, and 32 foreign language
symbols.
below ground (V < ground) or
in
higher than V (V > V ) and
DD
in
DD
when a high current is forced into
the input. To prevent input
current latchup and ESD damage,
unused inputs should be
connected either to ground or to
V
. Voltages should not be
DD
8
CHARACTER RAM
ASCII DECODER
2
7
7
WRITE
ADDRESS
DATA
OUT
CHARACTER
SELECT
A
D
– A
– D
0
1
5
COLUMN
DATA
DATA IN
0
6
WRITE
WR
(4 x 7)
3
ROW
SELECT
COLUMN
DRIVERS
ROW
DRIVERS
ROW
SELECT
OSC
+ 32
+ 7
DISPLAY
Figure 2. Display Internal Block Diagram.
applied to the inputs until V
For further information on
soldering and post-solder
cleaning, see Application Note
1027, Soldering LED
Components.
For further information on
contrast enhancement, see
Application Note 1015, Contrast
Enhancement Techniques for
LED Displays.
DD
has been turned on, and high
transient input voltages should be
eliminated.
Soldering Instructions
The HDLX-1414 is compatible
with hand- and wave-solder
processes. The use of a no-clean
flux is recommended.
Contrast Enhancement
The objective of contrast
enhancement is to provide good
readability in the end user’s
ambient lighting conditions. By
using both luminance
(brightness) and chrominance
(color) contrast techniques, the
ON dots of the display can be
made to stand out against a dark
background.
The polycarbonate lens on these
displays is incompatible with
some fluxes and cleaning
solutions. It is not recommended
for use with heated Terpene, or
solutions of propylene glycol
monomethyl ether and
monoethanolamine.
9
Intensity Bin Limits for HDLS-1414
Intensity Range (mcd)
Bin
E
Min.
3.97
Max.
6.79
F
5.55
9.50
G
H
I
7.78
13.30
18.62
26.07
36.49
10.88
15.24
21.33
J
Note:
Test conditions as specified in Optical Characteristic table.
Intensity Bin Limits for HDLX-1414
Intensity Range (mcd)
Bin
A
B
C
D
E
F
G
Min.
1.20
1.45
2.02
2.83
3.97
5.55
7.78
Max.
1.77
2.47
3.46
4.85
6.79
9.50
13.30
Note:
Test conditions as specified in Optical Characteristic table.
Color Bin Limits
Color Range (nm)
Color
Green
Bin
1
2
3
4
3
4
5
6
Min.
576.0
573.0
570.0
567.0
581.5
584.0
586.5
589.0
Max.
580.0
577.0
574.0
571.5
585.0
587.5
590.0
592.5
Yellow
Note:
Test conditions as specified in Optical Characteristic table.
www.agilent.com/semiconductors
For product information and a complete list of
distributors, please go to our web site.
For technical assistance call:
Americas/Canada: +1 (800) 235-0312 or
(916) 788-6763
Europe: +49 (0) 6441 92460
China: 10800 650 0017
Hong Kong: (+65) 6756 2394
India, Australia, New Zealand: (+65) 6755 1939
Japan: (+81 3) 3335-8152 (Domestic/Interna-
tional), or 0120-61-1280 (Domestic Only)
Korea: (+65) 6755 1989
Singapore, Malaysia, Vietnam, Thailand,
Philippines, Indonesia: (+65) 6755 2044
Taiwan: (+65) 6755 1843
Data subject to change.
Copyright © 2004 Agilent Technologies, Inc.
Obsoletes 5988-2802EN
July 14, 2004
5988-3270EN
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