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PDF HDSP-210X Data sheet ( Hoja de datos )
| Número de pieza | HDSP-210X | |
| Descripción | Eight Character 5 mm and 7 mm Smart Alphanumeric Displays | |
| Fabricantes | AVAGO TECHNOLOGIES | |
| Logotipo |  |
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HDSP-210x Series
Eight Character 5 mm and 7 mm Smart
wwAwl.pDahtaaSnhuemet4eUr.iccomDisplays
Data Sheet
HDSP-210x Series, HDSP-211x Series, HDSP-250x Series
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 aes-
thetically pleasing manner is required. These devices are
8‑digit, 5 x 7 dot matrix, alphanumeric 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 programmable symbols may be stored in
on- board ROM, allowing considerable flexibility for dis-
playing 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.
Features
• X stackable (HDSP-21xx)
• XY stackable (HDSP-250x)
• 128 sharacter 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
Device Selection Guide
Font Height
0.2 inches
0.27 inches
AlGaAs
Red
HDSP-2107
HDSP-2504
High Efficiency
Red
HDSP-2112
HDSP-2502
Orange
HDSP-2110
HDSP-2500
Yellow
HDSP-2111
HDSP-2501
Green
HDSP-2113
HDSP-2503
1 page  
Electrical Characteristics Over Operating Temperature Range (-45°C to +85°C)
ww4w.5.DVat<aSVhDeDet<4U5..c5omV, unless otherwise specified
Parameter
Symbol
TA = 25°C
VDD = 5.0
Typ. Max.
-45°C < TA < + 85°C
4.5 V < VDD < 5.5 V
Min. Max.
Units
Input Leakage
IIH
1.0 µA
(Input without pullup) IIL
-1.0
Input Current
IIPL -11 -18
-30 µA
(Input with pullup)
IDD Blank
IDD (BLK) 0.5 3.0
4.0 mA
IDD 8 digits
IDD(V)
200 255
330 mA
12 dots/character[1,2]
IDD 8 digits
IDD(#)
300 370
430 mA
20 dots/character[1,2,3,4]
Input Voltage High
VIH
2.0
VDD
V
+0.3
Input Voltage Low
VIL
GND
-0.3 V
0.8 V
Output Voltage High
VOH
2.4
V
Output Voltage Low
VOL
0.4 V
D0-D7
Output Voltage Low
VOL
0.4 V
CLK
High Level Output
Current
IOH
-60 mA
Low Level Output
Current
IOL
50 mA
Thermal Resistance
IC Junction-to-Case
RqJ-C
15
°C/W
Test Conditions
VIN = 0 to VDD,
pins CLK, D0-D
A0-A4
VIN = 0 to VDD,
pins CLS, RST,
WR, RD, CE, FL
VIN = VDD
“V” on in all 8
locations
“#” on in al
locations
VDD = 4.5 V,
IOH = -40 µA
VDD = 4.5 V,
IOL = 1.6 mA
VDD = 4.5 V,
IOL = 40 µA
VDD = 5.0 V
VDD = 5.0 V
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.
5 Page 
Display Internal Block Diagram
wwFwig.DuarteaS1hseheot4wUs.ctohme 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-acces-
sible 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
Character 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.
RST CE WR RD
0 0 UNDEFINED
1
0
0
1
1 WRITE TO DISPLAY
0 READ FROM DISPLAY
1 1 UNDEFINED
CONTROL SIGNALS
FL A4 A3 A2 A1 A0
11 1
CHARACTER
ADDRESS
CHARACTER RAM ADDRESS
000 = LEFT MOST
111 = RIGHT MOST
D7 D6 D5 D4 D3 D2 D1 D0
0 128 ASCII CODE
1XXX
CHARACTER RAM DATA FORMAT
UDC CODE
DIG0 DIG1 DIG2 DIG3 DIG4 DIG5 DIG6 DIG7
000 001 010 011 100 101 110 111
SYMBOL IS ACCESSED IN LOCATION
SPECIFIED BY THE CHARACTER ADDRESS ABOVE
DISPLAY
0 = LOGIC 0; 1 = LOGIC 1; X = DO NOT CARE
Figure 2. Logic levels to access the character RAM.
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet HDSP-210X.PDF ] | |
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