The HDSP-253x is ideal for applications where displaying
eight or more characters of dot matrix information in an
aesthetically pleasing manner is required. These devices
are eight-digit, 5 x 7 dot matrix, alphanumeric displays.
The 5.0 mm (0.2 inch) high characters are packaged in a
0.300 inch (7.62 mm) 30 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 RAM. Seven brightness
levels provide versatility in adjusting the display intensity
and power consumption. The HDSP-253x is designed for
standard microprocessor interface techniques. The display
and special features are accessed through a bidirectional
eight-bit data bus.
Features
•
XY stackable
•
128 character ASCII decoder
•
Programmable functions
•
16 user definable characters
•
Multi-level dimming and blanking
•
TTL compatible CMOS IC
•
Wave solderable
Applications
•
Avionics
•
Computer peripherals
•
Industrial instrumentation
•
Medical equipment
•
Portable data entry devices
•
Telecommunications
•
Test equipment
Device Selection Guide
AlGaAs Red
HDSP-2534
HER
HDSP-2532
Orange
HDSP-2530
Yellow
HDSP-2531
Green
HDSP-2533
ESD WARNING:
Normal CMOS handling precautions should be observed to avoid static discharge.
Package Dimensions
42.93 (1.690) MAX.
2.68 SYM.
(0.105)
5.36 TYP.
(0.211)
PIN FUNCTION ASSIGNMENT TABLE
PIN # FUNCTION
PIN #
FUNCTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
RST
FL
A0
A1
A2
A3
NO PIN
NO PIN
NO PIN
A4
CLS
CLK
WR
CE
V
DD
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
GND (SUPPLY)
THERMAL TEST
GND (LOGIC)
RD
D0
D1
NO PIN
NO PIN
NO PIN
D2
D3
D4
D5
D6
D7
4.57 TYP.
(0.180)
0
1
2
3
4
5
6
7
2.29 SYM.
(0.090)
11.43 MAX.
(0.450)
PIN #1 IDENTIFIER
2.54 TYP.
(0.100)
DATE CODE (YEAR, WEEK)
LUMINOUS INTENSITY CATEGORY
COLOR BIN (3)
[4]
HDSP-253x X Z
YYWW
5.31
(0.209)
PART NUMBER
0.25
(0.010)
1.52 REF.
(0.060)
4.01 TYP.
(0.158)
PIN # 15
3.81 SYM.
(0.150)
7.62
(0.300)
PIN # 16
PIN #1
5.08 SYM.
(0.200)
PIN #15
0.46 0.13 TYP.
(0.018 0.005)
2.54 0.13 TYP.
(0.100 0.005)
(TOL. NON ACCUM.)
10.16
(0.400)
Notes:
1. Dimensions are in mm (inches).
2. Unless otherwise specified, tolerance on dimensions is ±0.25 mm (0.010 inch).
3. For yellow and green displays only.
4. Marking is on side opposite pin 1.
Absolute Maximum Ratings
Supply Voltage, V
DD
to Ground
[1]
Operating Voltage, V
DD
to Ground
[2]
Input Voltage, Any Pin to Ground
Free Air Operating Temperature Range, T
A[3 ]
Relative Humidity (Noncondensing)
Storage Temperature Range, T
S
Soldering Temperature [1.59 mm (0.063 in.) Below Body]
Solder Dipping
Wave Soldering
ESD Protection @ 1.5 kΩ, 100 pF
-0.3 V to 7.0 V
5.5 V
-0.3 V to V
DD
+0.3 V
-40°C to + 85°C
85%
-55°C to 100°C
260°C for 5 secs
250°C for 3 secs
4 kV (each pin)
Notes:
1. Maximum voltage is with no LEDs illuminated.
2. 20 dots ON in all locations at full brightness.
3. See Thermal Considerations section for information about operation in high temperature
ambients.
2
ASCII Character Set
D7
D6
BIT
S
D5
0
0
D4
D3 D2 D1 D0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
COLUMN
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
0
0
0
0
0
1
0
0
1
1
2
0
0
0
1
3
0
1
1
0
4
0
1
0
0
5
0
1
1
1
6
0
1
0
1
7
1
X
1
X
8–F
16
U
S
E
R
D
E
F
I
N
E
D
C
H
A
R
A
C
T
E
R
S
X
ROW
Optical Characteristics at 25°C
[1]
V
DD
= 5.0 V at Full Brightness
Luminous Intensity Peak
Character Average (#)
I
V
(mcd)
Min.
Typ.
5.1
2.5
2.5
2.5
2.5
25
7.5
7.5
7.5
7.5
LED Color
AlGaAs Red
High Efficiency Red
Orange
Yellow
Green
Part Number
HDSP-2534
HDSP-2532
HDSP-2530
HDSP-2531
HDSP-2533
Dominant
Wavelength
l
PEAK
(nm)
Typ.
645
635
600
583
568
Wavelength
[2]
l
d
(nm)
Typ.
637
626
602
585
574
Notes:
1. Refers to the initial case temperature of the device immediately prior to measurement.
2. Dominant wavelength,
l
d
, is derived from the CIE chromaticity diagram, and represents the single wavelength which defines the color of the device.
3
Recommended Operating Conditions
Parameter
Supply Voltage
Symbol
V
DD
Minimum
4.5
Nominal
5.0
Maximum
5.5
Units
V
Electrical Characteristics over Operating Temperature Range
4.5 < V
DD
< 5.5 unless otherwise specified
Parameter
Input Leakage
(Input without Pull-up)
Input Current
(Input with Pull-up)
I
DD
Blank
I
DD
8 Digits 12 Dots/Char
[2,3,4]
(AlGaAs)
I
DD
8 Digits 20 Dots/Char
[2,3,4]
(AlGaAs)
I
DD
8 Digits 12 Dots/Char
[2,3,4]
(All Colors Except AlGaAs)
I
DD
8 Digits 20 Dots/Char
[2,3,4]
(All Colors Except AlGaAs)
Input Voltage High
Input Voltage Low
Output Voltage High
Output Voltage Low D
0
-D
7
Output Voltage Low CLK
Thermal Resistance IC
Junction-to-PIN
Symbol
I
I
I
IP
I
DD
(BL)
I
DD
(V)
I
DD
(#)
I
DD
(V)
I
DD
(#)
V
IH
V
IL
V
OH
V
OL
V
OL
Rq
J-PIN
Min.
-1.0
-30
2.0
GND
-0.3 V
2.4
25°C
Typ.
[1]
-11
0.5
230
330
200
300
16
25°C
Max.
[1]
-18
3.0
295
410
255
370
Max.
1.0
0
4.0
390
480
330
430
V
DD
+0.3 V
0.8
0.4
0.4
Units
mA
mA
mA
mA
mA
mA
mA
V
V
V
V
V
°C/W
Test Conditions
V
IN
= 0 to V
DD
, Pins CLK,
D
0
-D
7
, A
0
-A
4
V
IN
= 0 to V
DD
, Pins CLS,
RST, WR, RD, CE, FL
V
IN
= V
DD
“V” On in All 8 Locations
“#” On in All 8 Locations
“V” On in All 8 Locations
“#” On in All 8 Locations
V
DD
= 4.5 V, I
OH
= -40 µA
V
DD
= 4.5 V, I
OL
= 1.6 mA
V
DD
= 4.5 V, I
OL
= 40 µA
Measured at Pin 17
Notes:
1. V
DD
= 5.0 V.
2. See Thermal Considerations Section for information about operation in high temperature ambients.
3. Average I
DD
measured at full brightness. See Table 2 in Control Word Section for I
DD
at lower brightness levels. Peak I
DD
= 28/15 x I
DD
(#).
4. Maximum I
DD
occurs at -55°C.
4
AC Timing Characteristics over Temperature Range
V
DD
= 4.5 to 5.5 V unless otherwise specified.
Reference
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
Symbol
t
ACC
t
ACS
t
CE
t
ACH
t
CER
t
CES
t
CEH
t
W
t
WD
t
DH
t
R
t
RD
t
DF
t
RC
Description
Display Access Time
Write
Read
Address Setup Time to Chip Enable
Chip Enable Active Time
[2, 3]
Write
Read
Address Hold Time to Chip Enable
Chip Enable Recovery Time
Chip Enable Active Prior to Rising Edge of
[2, 3]
Write
Read
Chip Enable Hold Time to Rising Edge of Read/Write Signal
[2,3]
Write Active Time
Data Valid Prior to Rising Edge of Write Signal
Data Write Hold Time
Chip Enable Active Prior to Valid Data
Read Active Prior to Valid Data
Read Data Float Delay
Reset Active Time
[4]
Min.
[1]
210
230
10
140
160
20
60
140
160
0
100
50
20
160
75
10
300
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes:
1. Worst case values occur at an IC junction temperature of 125°C.
2. For designers who do not need to read from the display, the Read line can be tied to V
DD
and the Write and Chip Enable lines can be tied
together.
3. Changing the logic levels of the Address lines when CE = “0” may cause erroneous data to be entered into the Character RAM, regardless of the
logic levels of the WR and RD lines.
4. The display must not be accessed until after 3 clock pulses (110 µs min. using the internal refresh clock) after the rising edge of the reset line.
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