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PDF HDSP-2107 Data sheet ( Hoja de datos )
| Número de pieza | HDSP-2107 | |
| Descripción | (HDSP-250x/-211x Series) Amart Alphanumeric Displays | |
| Fabricantes | Avago Technologies | |
| Logotipo |  |
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www.DataSheet4U.comASDmagtiaalerSnt htAeElpeighthatnCuhmaerraiccteDUris5p.mlacmysoanmd 7 mmHDSP-210x Series, HDSP-211x Series, HDSP-250x Series
t4Description
The HDSP-210x/-211x/-250x
eseries of products is ideal for
eapplications where displaying
eight or more characters of dot
hmatrix information in an
aesthetically pleasing manner is
Srequired. These devices are
8-digit, 5 x 7 dot matrix, alpha-
tanumeric displays and are all
packaged in a standard 15.24
amm (0.6 inch) 28 pin DIP. The
on-board CMOS IC has the
.Dability to decode 128 ASCII
characters which are
permanently stored in ROM. In
addition, 16 programmable
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 micro-
processor interface techniques.
The display and special features
are accessed through a bidirec-
tional 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
wwDevice Selection Guide
w omFont Height
AlGaAs
Red
.c0.2 inches
HDSP-2107
www.DataSheet4U0.27 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
1 page  
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
Typ. Max.
-45°C < TA < + 85°C
4.5 V < VDD < 5.5 V
Min. Max.
Input Leakage
(Input without pullup)
IIH
IIL
1.0
-1.0
Input Current
(Input with pullup)
IIPL
-11 -18
-30
IDD Blank
IDD 8 digits
12 dots/character[1,2]
IDD 8 digits
20 dots/character[1,2,3,4]
Input Voltage High
IDD (BLK)
IDD(V)
IDD(#)
VIH
Input Voltage Low
VIL
Output Voltage High
VOH
0.5 3.0
200 255
300 370
2.0
GND
-0.3 V
2.4
4.0
330
430
VDD
+0.3
0.8
Output Voltage Low
D0-D7
Output Voltage Low
CLK
High Level Output
Current
Low Level Output
Current
Thermal Resistance
IC Junction-to-Case
VOL
VOL
IOH
IOL
RqJ-C
15
0.4
0.4
-60
50
Units
µA
µA
mA
mA
mA
V
V
V
V
V
mA
mA
°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
5 Page 
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 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 WRITE TO DISPLAY
1 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-2107.PDF ] | |
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