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PDF HDSP-211X Data sheet ( Hoja de datos )
| Número de pieza | HDSP-211X | |
| Descripción | (HDSP-2xxX) Eight Character 5 mm and 7 mm Smart Alphanumeric Displays | |
| Fabricantes | Agilent | |
| Logotipo |  |
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Eight Character 5 mm and 7 mm
Smart Alphanumeric Displays
Technical Data
HDSP-210X Series
HDSP-211X Series
HDSP-250X Series
Features
• X Stackable (HDSP-21XX)
• XY Stackable (HDSP-250X)
• 128 Character ASCII
Decoder
• Programmable Functions
• 16 User Definable
Characters
• Multi-Level Dimming and
Blanking
• TTL Compatible CMOS IC
• Wave Solderable
Applications
• Computer Peripherals
• Industrial Instrumentation
• Medical Equipment
• Portable Data Entry Devices
• Cellular Phones
• Telecommunications
Equipment
• Test Equipment
Description
The HDSP-210X/-211X/-250X
series of products is ideal for
applications where displaying
eight or more characters of dot
matrix information in an
aesthetically pleasing manner is
required. These devices are
8-digit, 5 x 7 dot matrix, alpha-
numeric displays and are all
packaged in a standard 15.24 mm
(0.6 inch) 28 pin DIP. The on-
board CMOS IC has the ability to
decode 128 ASCII characters
which are permanently stored in
ROM. In addition, 16 program-
mable symbols may be stored in
on-board ROM, allowing consider-
able flexibility for displaying
additional symbols and icons.
Seven brightness levels provide
versatility in adjusting the display
intensity and power consumption.
The HDSP-210X/-211X/-250X
products are designed for
standard microprocessor interface
techniques. The display and
special features are accessed
through a bidirectional 8-bit data
bus.
Device Selection Guide
Font Height
0.2 inches
AlGaAs
Red
HDSP-2107
0.27 inches
HDSP-2504
High Efficiency
Red
HDSP-2112
HDSP-2502
Orange
HDSP-2110
HDSP-2500
Yellow
HDSP-2111
HDSP-2501
Green
HDSP-2113
HDSP-2503
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Electrical Characteristics Over Operating Temperature Range (-45°C to +85°C)
4.5 V < VDD < 5.5 V, unless otherwise specified
Parameter
Symbol
TA = 25°C
VDD = 5.0 V
Typ.
Max.
-45°C < TA < + 85°C
4.5 V < VDD < 5.5 V
Min.
Max.
Units
Test Conditions
Input Leakage
(Input without pullup)
IIH
IIL
Input Current
(Input with pullup)
IIPL -11
-18
1.0 µA VIN = 0 to VDD,
-1.0 pins CLK, D0-D7,
A0-A4
-30 µA VIN = 0 to VDD,
pins CLS, RST,
WR, RD, CE, FL
IDD Blank
IDD (BLK)
0.5
3.0
4.0 mA VIN = VDD
IDD 8 digits
12 dots/character[1,2]
IDD 8 digits
20 dots/character[1,2,3,4]
Input Voltage High
Input Voltage Low
Output Voltage High
Output Voltage Low
D0-D7
Output Voltage Low
CLK
High Level Output
Current
Low Level Output
Current
Thermal Resistance
IC Junction-to-Case
IDD(V)
IDD(#)
VIH
VIL
VOH
VOL
VOL
IOH
IOL
RθJ-C
200
300
15
255 330 mA “V” on in all 8
locations
370 430 mA “#” on in all
locations
2.0 VDD V
+0.3
GND
-0.3 V
0.8
V
2.4 V VDD = 4.5 V,
IOH = -40 µA
0.4 V VDD = 4.5 V,
IOL = 1.6 mA
0.4 V VDD = 4.5 V,
IOL = 40 µA
-60 mA VDD = 5.0 V
50 mA VDD = 5.0 V
°C/W
Notes:
1. Average IDD measured at full brightness. See Table 2 in Control Word Section for IDD at lower brightness levels. Peak
IDD = 28/15 x IDD (#).
2. Maximum IDD occurs at -55°C.
3. Maximum IDD(#) = 355 mA at VDD = 5.25 V and IC TJ = 150°C.
4. Maximum IDD(#) = 375 mA at VDD = 5.5 V and IC TJ = 150°C.
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Display Internal Block
Diagram
Figure 1 shows the internal block
diagram of the HDSP-210X/
-211X/-250X displays. 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 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-210X/-211X/-250X
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 A0-A2 are used to
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 D7 is used
to differentiate between the ASCII
character and a UDC RAM
address. D7 = 0 enables the ASCII
decoder and D7 = 1 enables the
UDC RAM. D0-D6 are used to
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-211X.PDF ] | |
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