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參數(shù)資料
| 型號(hào)： | ISD2010 |
| 元件分類： | 顯示用LED |
| 英文描述： | 5X7 DOT MATRIX DISPLAY, RED, 3.7 mm |
| 封裝： | ROHS COMPLIANT, HERMETIC SEALED, DIP-12 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大小： | 612K |
| 代理商： | ISD2010 |
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4-Character 5 x 7 Dot Matrix / RoHS Compliant - By Exemption (see page 1)
Serial Input Alphanumeric Industrial Display
Sunlight Viewable: ISD235X
2006-04-04
1
ISD201X, ISD231X, ISD235X
ISD201X
ISD231X
ISD235X
RoHS Compliant - By ExemptionDESCRIPTION
The ISD201X/231X/235X are four digit 5 x 7 dot matrix serial input
alphanumeric displays. The displays are available in red, yellow,
high efficiency red, or high efficiency green. The package is a
standard twelve-pin hermetic DIP with glass lens. The display can
be stacked horizontally or vertically to form messages of any
length.
These displays have two fourteen-bit CMOS shift registers with
built-in row drivers. These shift registers drive twenty-eight rows
and enable the design of customized fonts. Cascading multiple
displays is possible because of the Data In and Data Out pins. Data
In and Out are easily input with the clock signal and displayed in
parallel on the row drivers. Data Out represents the output of the
7th bit of digit number four shift register. The shift register is level
triggered. The like columns of each character in a display cluster
are tied to a single pin (see Block Diagram). High true data in the
shift register enables the output current mirror driver stage
associated with each row of LEDs in the 5 x 7 diode array.
The TTL compatible V
B input may either be tied to VCC for maximum
display intensity or pulse width modulated to achieve intensity
control and reduce power consumption.
In the normal mode of operation, input data for digit four, column
one is loaded into the seven on-board shift register locations one
through seven. Column one data for digits 3, 2 and 1 is shifted into
the display shift register locations. Then column one input is
enabled for an appropriate period of time, T. A similar process is
repeated for columns 2, 3, 4 and 5. If the decode time and load data
time into the shift register is t, then with five columns, each column
of the display is operating at a duty factor of:
T+t, allotted to each display column, is generally chosen to provide
the maximum duty factor consistent with the minimum refresh rate
necessary to achieve a flicker free display. For most strobed
display systems, each column of the display should be refreshed
(turned on) at a minimum rate of 100 times per second.
With columns to be addressed, this refresh rate then gives a value
for the time T+t of: 1
[5 x (100)]=2.0 msec. If the device is operated
at 5.0 MHz clock rate maximum, it is possible to maintain t<T. For
short display strings, the duty factor will then approach 20%.
See Appnote 44 for application information and Appnotes 18, 19,
22, 23 at www.osram-os.com
DF
T
5T
1
+
()
---------------------
=
FEATURES
Four Dot Matrix Characters
Character Height
ISD201X— 3.81 mm (0.150")
ISD231X— 5.08 mm (0.200")
ISD235X— 5.08 mm (0.200")
Built-in CMOS Shift Registers with Constant Current
LED Row Drivers
Wide Viewing Angle
Shift Registers Allow Custom Fonts
Easily Cascaded for Multiple Displays
TTL Compatible
End Stackable
Operating Temperature Range:
–55°C to +100°C
Categorized for Luminous Intensity
Ceramic Package, Hermetically Sealed Flat Glass
Window
RoHS Compliance
The ISD201X, ISD231X, ISD235X Intelligent Displays
TM are her-
metically sealed displays using a ceramic and glass construction.
These components are not lead (Pb) free but are RoHS Compliant
based on the RoHS Compliance Directive's Annex, paragraphs 5
and 7. These exemptions allow for lead (Pb) in glass and ceramic
electronic components. Refer to the following excerpts from the
RoHS Compliance Directive Annex:
Applications of lead, mercury, cadmium and hexavalent chromium,
which are exempted from the requirements of Article 4(1)
5. Lead in glass of cathode ray tubes, electronic components and
fluorescent tubes.
7. Lead in electronic ceramic parts (e.g. piezoelectronic devices). .
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