DLO2416 [INFINEON]
4-Character 5x7 Dot Matrix Alphanumeric IntelligentDisplay with Memory/Decoder/Driver; 4个字符的5x7点阵字母数字IntelligentDisplay带记忆/解码器/驱动器
| 型号： | DLO2416 |
| 厂家： | 
Infineon |
| 描述： | 4-Character 5x7 Dot Matrix Alphanumeric IntelligentDisplay with Memory/Decoder/Driver |
| 文件： | 总7页 (文件大小：218K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RED DLR2416
HIGH EFFICIENCY RED DLO2416
GREEN DLG2416
.200” 4-Character 5x7 Dot Matrix
®
Alphanumeric IntelligentDisplay with Memory/Decoder/Driver
Package Dimensions in inches (mm)
.250
(6.35)
.260
(6.60) ref.
.031
(.79)
.136
(3.45)
.031
(.79)
.800
(20.32)
max.
.600±.020
(15.24 ±.51)
.198
(5.03)
.012 (.30)
±.002 (.05)
18 pl.
.1.00 max.
(25.4)
.Pin 1
Indicator
Part No.
EIA Date Code
.070 (1.78) ±.003 (.08)
.010 (.25) 8 pl.
.050 4 pl.
(1.27)
DLX2416
SIEMENS YYWW
Z
.260 (6.60)
.160 ±.020
(4.06 ±.51)
Luminous
Intensity Code
FEATURES
.100 16 pl.
.095
(2.41)
ref.
.018
(.46)
• Dot Matrix Replacement for DL2416T
• 0.200" 5 x 7 Dot Matrix Characters
• 128 Special ASCII Characters for English, German,
Italian, Swedish, Danish, and Norwegian
Languages
(2.54) at Seating Plane
±.002 (.05) 18 pl.
TOLERANCE: XXX±.01 (.25)
DESCRIPTION
• Wide Viewing Angle: X Axis 50° Maximum,
Y Axis ±75° Maximum
• Close Multi-line Spacing, 0.8" Centers
• Fast Access Time, 110 ns at 25°C
• Full Size Display for Stationary Equipment
• Built-in Memory
• Built-in Character Generator
• Built-in Multiplex and LED Drive Circuitry
• Direct Access to Each Digit Independently
• and Asynchronously
• Independent Cursor Function
• Memory Function: Clears Character and Cursor
Memory Simultaneously
The DLR/DLO/DLG2416 is a four digit 5x7 dot matrix display module
with a built-in CMOS integrated circuit. This display is X/Y stackable.
The integrated circuit contains memory, ASCII ROM decoder, multi-
plexing circuitry and drivers. Data entry is asynchronous and can be
random. A display system can be built using any number of DLX2416s
since each digit can be addressed independently and will continue to
display the character last stored until replaced by another.
System interconnection is very straightforward. The least significant
two address bits (A0, A1) are normally connected to the like-named
inputs of all displays in the system. With two chip enables (CE1 and
CE2) four displays (16 characters) can easily be interconnected with-
out a decoder.
Data lines are connected to all DLX2416s directly and in parallel, as is
the write line (WR). The display will then behave as a write-only mem-
ory.
• True Blanking for Intensity Dimming Applications
• End-Stackable, 4-Character Package
• Intensity Coded for Display Uniformity
• Extended Operating Temperature Range:
–40°C to +85°C
The cursor function causes all dots of a digit position to illuminate at
half brightness. The cursor is not a character, and when removed the
previously displayed character will reappear.
• Superior ESD Immunity
The DLX2416 has several features superior to competitive devices.
True “blanking” allows the designer to dim the display for more flexibil-
ity of display presentation. Finally the CLR clear function will clear the
cursor RAM and the ASCII character RAM simultaneously.
• Wave Solderable
• TTL Compatible over Operating Temperature
Range
• Interdigit Blanking
The character set consists of 128 special ASCII characters for English,
German, Italian, Swedish, Danish, and Norwegian.
All products are subjected to out-going AQL’s of 0.25% for brightness
matching, visual alignment and dimensions, 0.065% for electrical and
functional.
5–1
Maximum Ratings
Pins and Functions
DC Supply Voltage ........................................–0.5 V to +7.0 Vdc
Input Voltage, Respect to GND
Pin
Function
Pin
Function
(all inputs) .......................................... –0.5 V to V +0.5 Vdc
CC
1
2
3
CE1 Chip Enable
CE2 Chip Enable
CLR Clear
10
11
12
GND
Operating Temperature ..................................... –40°C to +85°C
Storage Temperature ....................................... –40°C to +100°C
Relative Humidity at 85°C.................................................... 85%
Maximum Solder Temperature, 0.063" (1.59 mm)
D0 Data Input
D1 Data Input
below Seating Plane, t<5 sec ...................................... 260 °C
CUE Cursor En-
able
4
13
D2 Data Input
Optical Characteristics
5
6
7
8
9
CU Cursor Select
WR Write
14
15
16
17
18
D3 Data Input
D6 Data Input
D5 Data Input
D4 Data Input
BL Display Blank
Spectral Peak Wavelength
Red ...................................................................... 660 nm typ.
HER ..................................................................... 630 nm typ.
Green .................................................................. 565 nm typ.
Character Height ............................................. 0.200" (5.08 mm)
Time Averaged Luminous Intensity at V =5 V
Red................................................................ 60 µcd/LED typ.
HER............................................................. 100 µcd/LED typ.
Green .......................................................... 120 µcd/LED typ.
A1 Digit Select
A0 Digit Select
(1)
CC
V
CC
Figure 2. Timing characteristics —Write Cycle waveforms
LED to LED Intensity Matching at V =5 V.............1.8:1.0 max.
CC
LED to LED Hue Matching (Green only)
2.0 V
0.8 V
CE1, CE2
CU, CLR
at V =5 V ...........................................................±2 nm max.
CC
T
CUS
T
CEH
CES
T
Viewing Angle (off normal axis)
Horizontal ...............................................................±50° max.
Vertical . .................................................................±75° max.
T
CUH
T
CLRD
2.0 V
0.8 V
A0, A1
D0-D6
WR
Note 1: Peak luminous intensity values can be calculated by multiply-
ing these values by 7.
T
T
AH
AS
Figure 1. Top View
2.0 V
0.8 V
18 17 16 15 14 13 12 11 10
T
DS
T
DH
2.0 V
0.8 V
digit 3 digit 2 digit 1 digit 0
T
W
T
ACC
1
2
3
4
5
6
7
8
9
Note: These waveforms are not edge triggered.
DC Characteristics
Parameter
–40°C
+25°C
+85°C
Units
Condition
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
I
80 dots on
135
160
135
4.0
110
130
100
3.0
95
115
100
2.5
80
mA
mA
mA
µA
V
V
=5 V
=5 V
CC
CC
I
Cursor all dots at 50%
Blank
V
CC
CC
I
2.8
60
2.3
50
2.0
40
V =5 V, BL=0.8 V
CC
CC
I
(all inputs)
30
120
25
100
20
V =0.8 V, V =5 V
IN CC
IL
V
(all inputs)
2.0
2.0
2.0
V
=5 V ±0.5 V
IH
CC
V
(all inputs)
0.8
5.5
0.8
5.5
0.8
5.5
V
V
=5 V ±0.5 V
IL
CC
V
4.5
5.0
4.5
5.0
4.5
5.0
V
CC
DLR/DLO/DLG2416
5–2
AC Characteristics Guaranteed Minimum Timing, Parameters at V =5.0 V ±0.5 V
CC
Parameter
Symbol
–40°C
+25°C
+85°C
Unit
Chip Enable Set Up Time
Address Set Up Time
Cursor Set Up Time
Chip Enable Hold Time
Address Hold Time
Cursor Hold Time
Clear Disable Time
Write Time
T
0
0
0
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
µs
ns
CES
T
10
10
0
10
10
0
10
10
0
AS
T
CUS
T
CEH
T
20
20
1
30
30
1
40
40
1
AH
T
CUH
T
CLRD
T
60
20
20
1
70
30
30
1
90
50
40
1
W
Data Set Up Time
Data Hold Time
T
DS
T
DH
Clear Time
T
CLR
Access Time
T
90
110
140
ACC
Note: T
ACC
=Set Up Time + Write Time + Hold Time.
Loading Data Table
Control
CE1 CE2 CUE CU
Address
Data
Display Digit
BL
H
H
H
H
H
H
H
L
WR CLR A1 A0 D6 D5 D4 D3 D2 D1 D0
3
2
1
0
X
H
X
L
L
L
L
X
L
X
L
X
X
H
L
L
L
L
X
L
X
L
L
L
L
L
L
L
L
X
L
L
L
X
X
X
H
H
H
H
X
H
X
H
H
X
X
L
L
L
L
H
L
H
L
H
H
H
H
H
H
H
H
H
L
previously loaded display
G
G
G
G
G
G
B
R
R
R
R
R
L
L
E
E
E
E
U
U
U
Y
Y
Y
E
E
E
E
X
X
L
X
X
L
X
X
H
H
H
H
X
X
L
L
L
L
X
X
L
H
L
L
X
X
L
L
H
L
X
X
H
H
H
L
X
X
L
L
L
H
X
X
H
H
L
L
H
L
H
H
X
H
X
X
H
X
H
X
X
L
blank display
H
H
H
H
L
L
L
H
H
H
G
L
U
E
clears character displays
see character code
L
see character set
X=don’t care
Loading Cursor Table
Digit
BL
H
H
H
H
H
H
H
H
H
H
CE1
X
CE2
X
CE3 CE4 CUE CU
WR CLR A1 A0 D6 D5 D4 D3 D2 D1 D0
3
2
1
0
X
X
L
L
L
L
L
X
L
X
X
X
L
L
L
L
L
X
L
X
L
X
X
L
L
L
L
L
X
L
H
H
H
L
L
L
L
L
H
L
X
H
H
H
H
H
H
H
H
H
H
previously loaded display
B
B
B
B
B
■
■
B
B
B
E
A
R
X
X
H
H
H
H
H
H
L
display previously stored cursors
E
A
R
H
H
L
L
H
L
H
L
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
H
H
H
H
L
E
A
■
■
■
■
■
R
H
H
L
E
■
■
■
■
A
H
H
H
H
H
■
■
E
H
H
H
H
X
X
disable cursor display
E
H
H
L
H
H
X
X
X
X
X
X
L
E
A
R
X
X
H
display stored cursors
E
■
■
X=don’t care ■= all dots on
DLR/DLO/DLG2416
5–3
Loading Data
Figure 3. DLX2416—Flashing circuit using a 555
and Flashing (Blanking) timing
Setting the chip enable (CE1, CE2) to their true state will enable
data loading. The desired data code (D0-D6) and digit address
(A0, A1) must be held stable during the write cycle for storing
new data.
V
CC
=5.0 V
Data entry may be asynchronous and random. Digit 0 is
defined as right hand digit with A1=A2=0.`
R1
4.7 KΩ
8
7
6
5
1
2
3
4
To clear the entire internal four-digit memory hold the clear
(CLR) low for 1 µs. All illuminated dots will be turned off within
one complete display multiplex cycle, 1 msec minimum. The
clear function will clear both the ASCII RAM and the cursor
RAM.
555
Timer
R2
100 KΩ
To BL
Pin on
Display
C3
10 µF
Setting the chip enables (CE1, CE2) and cursor select (CU) to
their true state will enable cursor loading. A write (WR) pulse
will now store or remove a cursor into the digit location
addressed by A0, A1, as defined in data entry. A cursor will be
stored if D0=1 and will removed if D0=0. The cursor (CU) pulse
width should not be less than the write (WR) pulse or erroneous
data may appear in the display.
C4
0.01 µF
1
0
Blanking Pulse Width
If the cursor is not required, the cursor enable signal (CUE)
may be tied low to disable the cursor function. For a flashing
cursor, simply pulse CUE. If the cursor has been loaded to any
or all positions in the display, then CUE will control whether the
cursor(s) or the characters will appear. CUE does not affect the
contents of cursor memory.
≈50% Duty Factor
~
500 ms
~
~
2 Hz Blanking Frequency
~
Figure 4. DLX2416Dimming circuit using a 556
and Dimming (Blanking) timing
Loading Cursor
V
=5.0 V
R3
CC
Setting the chip enables (CE1, CE2) and cursor select (CU) to
their true state will enable cursor loading. A write (WR) pulse
will now store or remove a cursor into the digit location
addressed by A0, A1, as defined in data entry. A cursor will be
stored if D0=1 and will removed if D0=0. The cursor (CU) pulse
width should not be less than the write (WR) pulse or erroneous
data may appear in the display.
Dimming (Blanking)
R2
47 KΩ
Control
14
13
12
11
10
9
1
2
3
4
5
6
7
500 KΩ
R1
200Ω
C2
0.01 µF
C3
1000 pF
556
Dual Timer
If the cursor is not required, the cursor enable signal (CUE)
may be tied low to disable the cursor function. For a flashing
cursor, simply pulse CUE. If the cursor has been loaded to any
or all positions in the display, then CUE will control whether the
cursor(s) or the characters will appear. CUE does not affect the
contents of cursor memory.
C4
0.01 µF
C1
To BL Pin
on Display
4700 pF
8
Display Blanking
Blanking the display may be accomplished by loading a blank
or space into each digit of the display or by using the (BL) dis-
play blank input.
1
0
Setting the (BL) input low does not affect the contents of either
data or cursor memory.
Blanking Pulse Width
4 µs min., 196 µs max.
~
200 µs
~
A flashing circuit can easily be constructed using a 555 astable
multivibrator. Figure 3 illustrates a circuit in which varying R2
(100K~10K) will have a flash rate of 1 Hz~10 Hz.
~
5 KHz Blanking Frequency
~
The display can be dimmed by pulse width modulating the
(BL) at a frequency sufficiently fast to not interfere with the
internal clock. The dimming signal frequency should be 2.5
KHz or higher. Dimming the display also reduces power con-
sumption.
An example of a simple dimming circuit using a 556 is illus-
trated in Figure 4. Adjusting potentiometer R3 will dim the dis-
play by changing the blanking pulse duty cycle.
DLR/DLO/DLG2416
5–4
Figure 5. Internal block diagram
Display
Rows 0 to 6
3
2
1
0
BL
Columns 0 to 19
Row Control Logic
&
Row Drivers
Timing and Control Logic
÷ 7
128
÷
OSC
Counter
Counter
Row Decoder
ROM
128 X 35 Bit
ASCII
RAM Read Logic
Column Enable
Latches and
Column Drivers
D6
D5
D4
D3
D2
D1
D0
7 Bit ASCII Code
Column Data
RAM
Memory
Character
Decode
Cursor
Memory
4 X 1 bit
4480 bits
4 X 7 bit
Address Lines
Cursor Memory Bits 0 to 3
WR
A0
A1
Write
Address
Decoder
CUE
Figure 6.Typica schematic—16-character system
+5
GND
D15
D12 D11
D8 D7
D4 D3
D0
BL
D0-D6
7
2
14
CLR
WR
CU
CUE
A0A
1
CE2
CE2
CE1
CE2
CE1
CE1
DLR/DLO/DLG2416
5–5
Design Considerations
For further information refer to Siemens Appnotes 18 and 19.
For details on design and applications of the DLX2416 using
standard bus configurations in multiple display systems, or
parallel I/O devices, such as the 8255 with an 8080 or memory
mapped addressing on processors such as the 8080, Z80,
6502, or 6800, refer to Appnote 15 in the current Siemens
Optoelectronics Data Book.
An alternative to soldering and cleaning the display modules
is to use sockets. Standard pin DIP sockets .600" wide with
0.100" centers work well for single displays. Multiple display
assemblies are best handled by longer SIP sockets or DIP
sockets when available for uniform package alignment.
Socket manufacturers are Aries Electronics, Inc., French-
town, NJ; Garry Manufacturing, New Brunswich, NJ; Robin-
son-Nugent, New Albany, IN; and Samtec Electronic
Hardware, New Albany, IN.
Electrical and Mechanical Considerations
Voltage Transient Suppression
We recommend that the same power supply be used for the
display and the components that interface with the display to
For further information refer to Siemens Appnote 22.
avoid logic inputs higher than V . Additionally, the LEDs may
Optical Considerations
CC
cause transients in the power supply line while they change
display states. The common practice is to place .01 mF capac-
itors close to the displays across VCC and GND, one for each
display, and one 10 mF capacitor for every second display.
The 0.200" high characters of the DLX2416 gives readability
up to eight feet. Proper filter selection enhances readability
over this distance.
Filters enhance the contrast ratio between a lit LED and the
character background intensifying the discrimination of differ-
ent characters. The only limitation is cost. Take into consider-
ation the ambient lighting environment for the best cost/
benefit ratio for filters.
ESD Protection
The silicon gate CMOS IC of the DLX2416 is quite resistant to
ESD damage and capable of withstanding discharges greater
than 2 KV. However, take all the standard precautions, normal
for CMOS components. These include properly grounding per-
sonnel, tools, tables, and transport carriers that come in con-
tact with unshielded parts. If these conditions are not, or
cannot be met, keep the leads of the device shorted together
or the parts in anti-static packaging.
Incandescent (with almost no green) or fluorescent (with
almost no red) lights do not have the flat spectral response of
sunlight. Plastic band-pass filters are an inexpensive and
effective way to strengthen contrast ratios.
The DLR2416 is a standard red display and should be
matched with long wavelength pass filter in the 600 nm to
620 nm range. The DLO2416 is a high efficiency red display
and should be matched with a long wavelength pass filter in
the 470 nm to 590 range. The DLG2416 should be matched
with a yellow-green band-pass filter that peaks at 565 nm. For
displays of multiple colors, neutral density gray filters offer
the best compromise.
Soldering Considerations
The DLX2416 can be hand soldered with SN63 solder using a
grounded iron set to 260°C.
Wave soldering is also possible following these conditions:
Preheat that does not exceed 93°C on the solder side of the PC
board or a package surface temperature of 85°C. Water solu-
ble organic acid flux (except carboxylic acid) or resin-based
RMA flux without alcohol can be used.
Additional contrast enhancement is gained by shading the
displays. Plastic band-pass filters with built-in louvers offer
the next step up in contrast improvement. Plastic filters can
be improved further with anti-reflective coatings to reduce
glare. The trade-off is fuzzy characters. Mounting the filters
close to the display reduces this effect. Take care not to over-
heat the plastic filter by allowing for proper air flow.
Wave temperature of 245°C ±5°C with a dwell between 1.5
sec. to 3.0 sec. Exposure to the wave should not exceed tem-
peratures above 260°C for five seconds at 0.063" below the
seating plane. The packages should not be immersed in the
wave.
Post Solder Cleaning Procedures
Optimal filter enhancements are gained by using circular
polarized, anti-reflective, band-pass filters. Circular polariz-
ing further enhances contrast by reducing the light that trav-
els through the filter and relfects back off the display to less
than 1%.
The least offensive cleaning solution is hot D.I. water (60°C) for
less than 15 minutes. Addition of mild saponifiers is accept-
able. Do not use commercial dishwasher detergents.
For faster cleaning, solvents may be used. Carefully select any
solvent as some may chemically attack the nylon package.
Maximum exposure should not exceed two minutes at elevated
temperatures. Acceptable solvents are TF (trichorotribluore-
thane), TA, 111 Trichloroethane, and unheated acetone.
Several filter manufacturers supply quality filter materials.
Some of them are: Panelgraphic Corporation, W. Caldwell,
NJ; SGL Homalite, Wilmington, DE; 3M Company, Visual
Products Division, St. Paul, MN; Polaroid Corporation, Polar-
izer Division, Cambridge, MA; Marks Polarized Corporation,
Deer Park, NY, Hoya Optics, Inc., Fremont, CA.
Note:
Acceptable commercial solvents are: Basic TF, Arklone,
P. Genesolv, D. Genesolv DA, Blaco-Tron TF, Blaco-Tron TA,
and Freon TA.
One last note on mounting filters: recessing displays and
bezel assemblies is an inexpensive way to provide a shading
effect in overhead lighting situations. Several Bezel manufac-
turers are: R.M.F. Products, Batavia, IL; Nobex Components,
Griffith Plastic Corp., Burlingame, CA; Photo Chemical Prod-
ucts of California, Santa Monica, CA; .E.E.-Atlas, Van Nuys,
CA.
Unacceptable solvents contain alcohol, methanol, methylene
chloride, ethanol, TP35, TCM, TMC, TMS+, TE, or TES. Since
many commercial mixtures exist, contact a solvent vendor for
chemical composition information. Some major solvent manu-
facturers are: Allied Chemical Corportation, Specialty Chemical
Division, Morristown, NJ; Baron-Blakeslee, Chicago, IL; Dow
Chemical, Midland, MI; E.I. DuPont de Nemours & Co., Wilm-
ington, DE.
Refer to Siemens Appnote 23 for further information.
DLR/DLO/DLG2416
5–6
Character Set
D0
0
0
0
0
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
1
1
0
1
B
0
0
1
1
C
1
0
0
1
1
1
E
1
1
1
1
F
D1
D2
D3
ASCII
CODE
0
1
1
1
D6 D5 D4 HEX
A
D
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
2
3
4
5
6
7
1. High=1 level. 2. Low=0 level. 3. Upon power up, device will initialize in a random state.
DLR/DLO/DLG2416
5–7
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