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PDF HDSP-2132 Data sheet ( Hoja de datos )
| Número de pieza | HDSP-2132 | |
| Descripción | (HDSP-21xx) Eight Character 5.0 mm (0.2 inch) Glass/Ceramic Intelligent 5 X 7 Alphanumeric Displays | |
| Fabricantes | Agilent | |
| Logotipo |  |
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Eight Character 5.0 mm
(0.2 inch) Glass/Ceramic Intelligent
5 x 7 Alphanumeric Displays
for Military Applications
Technical Data
HDSP-2131
HDSP-2132
HDSP-2133
HDSP-2179
Features
• Wide Operating Tempera-
ture Range -55°C to +85°C
• Smart Alphanumeric Display
On-Board CMOS IC
Built-In RAM
ASCII Decoder
LED Drive Circuitry
• 128 ASCII Character Set
• 16 User Definable
Characters
• Programmable Features
Individual Character Flashing
Full Display Blinking
Multi-Level Dimming and
Blanking
Self Test
Clear Function
• Read/Write Capability
• Full TTL Compatibility
• HDSP-2131/-2133/-2179
Useable in Night Vision
Lighting Applications
• Categorized for Luminous
Intensity
• HDSP-2131/2133 Categor-
ized for Color
• Excellent ESD Protection
• Wave Solderable
• X-Y Stackable
Description
The HDSP-2131 (yellow), HDSP-
2179 (orange), HDSP-2132 (high
efficiency red) and the HDSP-
2133 (green) are eight-digit, 5 x 7
dot matrix, alphanumeric
displays. The 5.0 mm (0.2 inch)
high characters are packaged in a
standard 7.64 mm (0.30 inch) 32
pin DIP. The on-board CMOS IC
has the ability to decode 128
ASCII characters, which are
permanently stored in ROM. In
addition, 16 programmable
symbols may be stored in an on-
board RAM. Seven brightness
levels provide versatility in
adjusting the display intensity and
power consumption. The HDSP-
213X is designed for standard
microprocessor interface tech-
niques. The display and special
features are accessed through a
bidirectional eight-bit data bus.
These features make the HDSP-
213X ideally suited for applica-
tions where a hermetic, low power
alphanumeric display is required.
Devices
Yellow
HDSP-2131
High Efficiency Red
HDSP-2132
High Performance Green
HDSP-2133
Orange
HDSP-2179
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Optical Characteristics at 25°C[4]
VDD = 5.0 V at Full Brightness
High Efficiency Red HDSP-2132
Description
Luminous Intensity Character Average (#)
Peak Wavelength
Dominant Wavelength
Symbol
IV
λPEAK
λd
Minimum
2.5
Typical
7.5
635
626
Units
mcd
nm
nm
Orange HDSP-2179
Description
Luminous Intensity Character Average (#)
Peak Wavelength
Dominant Wavelength
Symbol
IV
λPEAK
λd
Minimum
2.5
Typical
7.5
600
602
Units
mcd
nm
nm
Yellow HDSP-2131
Description
Luminous Intensity Character Average (#)
Peak Wavelength
Dominant Wavelength
Symbol
IV
λPEAK
λd
Minimum
2.5
Typical
7.5
583
585
Units
mcd
nm
nm
High Performance Green HDSP-2133
Description
Luminous Intensity Character Average (#)
Peak Wavelength
Dominant Wavelength
Symbol
IV
λPEAK
λd
Minimum
2.5
Note:
4. Refers to the initial case temperature of the device immediately prior to the light measurement.
Typical
7.5
568
574
Units
mcd
nm
nm
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Display Internal Block
Diagram
Figure 1 shows the internal block
diagram of the HDSP-213X/-2179
display. The CMOS IC consists of
an 8 byte Character RAM, an 8 bit
Flash RAM, a 128 character ASCII
decoder, a 16 character UDC
RAM, a UDC Address Register, a
Control Word Register, and the
refresh circuitry necessary to
synchronize the decoding and
driving of eight 5 x 7 dot matrix
characters. The major user
accessible portions of the display
are listed below:
Character RAM
Flash RAM
User-Defined Character
RAM (UDC RAM)
User-defined Character
Address Register
(UDC Address Register)
Control Word Register
This RAM stores either ASCII character data or a UDC RAM address.
This is a 1 x 8 RAM which stores Flash data.
This RAM stores the dot pattern for custom characters.
This register is used to provide the address to the UDC RAM when
the user is writing or reading a custom character.
This register allows the user to adjust the display brightness, flash
individual characters, blink, self test or clear the display.
Character Ram
Figure 2 shows the logic levels
needed to access the
HDSP-213X Character RAM.
During a normal access the CE =
"0" and either RD = "0" or WR =
"0". However, erroneous data may
be written into the Character RAM
if the Address lines are unstable
when CE = "0" regardless of the
logic levels of the RD or WR lines.
Address lines A -A are used to
02
select the location in the Charac-
ter RAM. Two types of data can
be stored in each Character RAM
location: an ASCII code or a UDC
RAM address. Data bit D is used
7
to differentiate between an ASCII
character and a UDC RAM
address. D = 0 enables the ASCII
7
decoder and D7 = 1 enables the
UDC RAM. D -D are used to
06
input ASCII data and D0-D3 are
used to input a UDC address.
Figure 2. Logic Levels to Access the Character RAM.
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet HDSP-2132.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HDSP-2131 | (HDSP-21xx) Eight Character 5.0 mm (0.2 inch) Glass/Ceramic Intelligent 5 X 7 Alphanumeric Displays | Agilent |
| HDSP-2132 | (HDSP-21xx) Eight Character 5.0 mm (0.2 inch) Glass/Ceramic Intelligent 5 X 7 Alphanumeric Displays | Agilent |
| HDSP-2133 | (HDSP-21xx) Eight Character 5.0 mm (0.2 inch) Glass/Ceramic Intelligent 5 X 7 Alphanumeric Displays | Agilent |
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