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Features
On-Board Low Power
CMOS IC
Integrated Shift Register with
Constant Current LED Drivers
Wide Operating
Temperature Range
-55°C to +100°C
Compact Glass Ceramic 4
Character Package
HCMS-201X Series X-Stackable
HCMS-231X/-235X
Series X-Y Stackable
HCMS-235X Series are
Sunlight Viewable
Five Colors
Standard Red
High Efficiency Red
Orange
Yellow
High Performance Green
5 x 7 LED Matrix Displays
Full ASCII Set
Two Character Heights
3.8 mm (0.15 inch)
5.0 mm (0.20 inch)
Wide Viewing Angle
X Axis = ±50°
Y Axis = ±65°
Long Viewing Distance
HCMS-201X Series to 2.6
Meters (8.6 Feet)
HCMS-231X/-235X Series to
3.5 Meters (11.5 Feet)
Categorized for Luminous
Intensity
HCMS-2011/2013
HCMS-2311/-2313/-2314
HCMS-2351/-2353/-2354
Useable in Night Vision
Lighting Applications
HCMS-2011/-2013,
HCMS-2311/-2313 and
HCMS-2351/-2353:
Categorized for Color
Typical Applications
Avionics
Communications Systems
Radar Systems
Fire Control Systems
Description
The HCMS-201X, HCMS-231X
and the sunlight viewable HCMS-
235X series are 5 x 7 LED four
character displays contained in
12 pin dual-in-line packages
designed for displaying alphanu-
meric information. The character
height for the HCMS-201X series
displays is 3.8 mm (0.15 inch),
and for the HCMS-231X and
HCMS-235X series displays the
character height is 5.0 mm (0.20
inch). The HCMS-201X series
displays are available in four LED
colors: standard red, high
efficiency red, yellow and high
performance green. The HCMS-
231X series are available in all
ESD WARNING: STANDARD CMOS HANDLING PRECAUTIONS SHOULD BE OBSERVED.
CMOS Extended Temperature
Range 5 x 7
Alphanumeric Displays
HCMS-201X Series
HCMS-231X
HCMS-235X Series
Technical Data
H
5964-6388E
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five LED colors. The HCMS-235X
series displays are available in
four LED colors: high efficiency
red, orange, yellow and high
performance green. The HCMS-
201X series displays are end
stackable. The HCMS-231X and
HCMS-235X series displays are
end/row stackable.
These displays are designed with
on-board CMOS integrated
circuits for use in applications
where conservation of power is
important. The two CMOS ICs
form an on-board 28-bit serial-in-
parallel-out shift register with
constant current output LED row
drivers. Decoded column data is
clocked into the on-board shift
register for each refresh cycle.
Full character display is achieved
with external column strobing.
Compatibility with
HDSP-201X/-231X/-235X
TTL IC Series Displays
The HCMS-201X, HCMS-231X
and HCMS-235X CMOS IC
displays are “drop-in” replace-
ments for the equivalent HDSP-
201X, HDSP-231X and HDSP-
235X TTL IC displays. The 12 pin
glass/ceramic package configura-
tion, four digit character matrix
and pin functions are identical.
Display Selection Table
Part Number Character Size LED Color
HCMS-2010 3.8 mm (0.15 inch) Standard Red
HCMS-2011 3.8 mm (0.15 inch) Yellow
HCMS-2012 3.8 mm (0.15 inch) High-Efficiency Red
HCMS-2013 3.8 mm (0.15 inch) High-Performance Green
HCMS-2310 5.0 mm (0.20 inch) Standard Red
HCMS-2311 5.0 mm (0.20 inch) Yellow
HCMS-2312 5.0 mm (0.20 inch) High-Efficiency Red
HCMS-2313 5.0 mm (0.20 inch) High-Performance Green
HCMS-2314 5.0 mm (0.20 inch) Orange
Sunlight Viewable Displays
HCMS-2351 5.0 mm (0.20 inch) Yellow
HCMS-2352 5.0 mm (0.20 inch) High-Efficiency Red
HCMS-2353 5.0 mm (0.20 inch) High-Performance Green
HCMS-2354 5.0 mm (0.20 inch) Orange
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Package Dimensions
HCMS-231X/-235X Series
HCMS-201X Series
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Recommended Operating Conditions
Over Operating Temperature Range (-55°C to +100°C)
Parameter Symbol Min. Typ. Max. Units
Supply Voltage VDD 4.75 5.00 5.25 V
Data Out Current, Low State IOL 1.6 mA
Data Out Current, High State IOH -0.5 mA
Column Input Voltage VCOL 2.75 3.0 3.5 V
Setup Time tSETUP 10 ns
Hold Time tHOLD 25 ns
Clock Pulse Width High tWH(CLOCK) 50 ns
Clock Pulse Width Low tWL(CLOCK) 50 ns
Clock High to Low Transition tTHL 200 ns
Clock Frequency fCLOCK 5 MHz
Absolute Maximum Ratings
Supply Voltage VDD to Ground.........................................0.3 V to 7.0 V
Data Input, Data Output, VB.............................................. 0.3 V to VDD
Column Input Voltage,VCOL ............................................... 0.3 V to VDD
Free Air Operating Temperature Range, TA................. 55°C to +100°C
Storage Temperature Range, TS................................... 65°C to +125°C
HCMS-2310/-2311/-2312/-2314
HCMS-2351/-2352/-2354
Storage Temperature Range, TS................................... 55°C to +100°C
HCMS-2010/-2011/-2012/-2013
HCMS-2313
HCMS-2353
Maximum Allowable Package Power Dissipation, PD[1,2]
HCMS-2010/-2011/-2012/-2013 at TA = 83°C ..................... 0.79 Watts
HCMS-2310/-2311/-2312/-2313/-2314 at TA = 88°C ........... 0.92 Watts
HCMS-2351/-2352/-2353/-2354 at TA = 71°C ..................... 1.31 Watts
Maximum Solder Temperature
1.59 mm (0.063") Below Seating Plane, t 5 sec ..................... .260°C
ESD Protection @ 1.5 k, 100 pf .......................... VZ = 4 kV (each pin)
Notes:
1. Maximum allowable power dissipation is derived from V
DD = 5.25 V, VB = 2.4 V,
V
COL = 3.5 V, 20 LEDs ON per character, 20% DF.
2. The power dissipation for these displays should be derated as follows:
HCMS-201X series derate above 83°C at 17 mW/°C, RθJ-A = 60°C/W
HCMS-231X series derate above 88°C at 22 mW/°C, RθJ-A = 45°C/W
HCMS-235X series derate above 71°C at 23 mW/°C, RθJ-A = 45°C/W.
Deratings based on RθPC-A = 35°C/W per display for printed circuit board assembly.
See Figure 1 for power derating based on lower RθJ-A values.
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Electrical Characteristics
over Operating Temperature Range (-55°C to +100°C)
Parameter Symbol Test Conditions Min. Typ.* Max. Units
Supply Current, Dynamic[1] IDDD fCLOCK = 5 MHz 6.2 7.8 mA
Supply Current, Static[2] IDDSoff VB = 0.4 V 1.8 2.6 mA
IDDSon VB = 2.4 V 2.2 6.0
Column Input Current VB = 0.4 V 10 µA
HCMS-2010/-2011/-2012/-2013 ICOL VB = 2.4 V 310 384 mA
HCMS-2310/-2311/-2312/-2313/-2314 VB = 2.4 V 360 451 mA
HCMS-2351/-2352/-2353/-2354 VB = 2.4 V 500 650 mA
Input Logic High Data, VB, Clock VIH VDD = 4.75 V 2.0 V
Input Logic Low Data, VB, Clock VIL VDD = 5.25 V 0.8 V
Input Current VDD = 5.25 V
Data, Clock II0 VI 5.25 V -10 +10 µA
VB0 VB 5.25 V -40 0
Data Out Voltage VDD = 4.75 V 2.4 4.2
VOH IOH = -0.5 mA V
ICOL = 0 mA
VDD = 5.25 V 0.2 0.4
VOL IOL = 1.6 mA V
ICOL = 0 mA
Power Dissipation Per Package[3] VDD = 5.0 V
HCMS-2010/-2011/-2012/-2013 VCOL = 3.5 V 414
HCMS-2310/-2311/-2312/-2313/-2314 PD17.5% DF 481 mW
HCMS-2351/-2352/-2353/-2354 VB = 2.4 V 668
15 LEDs ON
per Character
Thermal Resistance
IC Junction-to-Pin[4]
HCMS-2010/-2011/-2012/-2013 RθJ-PIN 25
HCMS-2310/-2311/-2312/-2313/-2314 10 °C/W
HCMS-2351/-2352/-2353/-2354 10
Leak Rate 5x10-8 cc/sec
*All typical values specified at V
DD = 5.0V and TA = 25°C.
Notes:
1. IDD Dynamic is the IC current while clocking column data through the on-board shift register at a clock frequency of 5MHz,
the display is not illuminated.
2. IDD Static is the IC current after column data is loaded and not being clocked through the on-board shift register.
3. Four characters are illuminated with a typical ASCII character composed of 15 dots per character.
4. IC junction temperature TJ(IC) = (PD)(RθJ-PIN + RθPC-A) + TA.
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Optical Characteristics at TA = 25°C
Standard Red HCMS-2010/-2310
Description Symbol Test Condition Min. Typ. Max. Units
Peak Luminous VDD = 5.0 V
Intensity per HCMS-2010 V
COL = 3.5 V 105 200 µcd
LED[5,9] HCMS-2310 IvPEAK VB = 2.4 V 220 370
(Character Average) Ti = 25°C[7]
Dominant Wavelength[8] λd639 nm
Peak Wavelength λPEAK 655 nm
Yellow HCMS-2011/-2311/-2351
Description Symbol Test Condition Min. Typ. Max. Units
Peak Luminous VDD = 5.0 V
Intensity per HCMS-2011 V
COL = 3.5 V 400 750
LED[5,9] HCMS-2311 IvPEAK VB = 2.4 V 650 1140 µcd
(Character HCMS-2351 Ti = 25°C[7] 2400 3400
Average)
Dominant Wavelength[6,8] λd585 nm
Peak Wavelength λPEAK 583 nm
High Efficiency Red HCMS-2012/-2312/-2352
Description Symbol Test Condition Min. Typ. Max. Units
Peak Luminous VDD = 5.0 V
Intensity per HCMS-2012 V
COL = 3.5 V 400 1430
LED[5,9] HCMS-2312 IvPEAK VB = 2.4 V 650 1430 µcd
(Character HCMS-2352 Ti = 25°C[7] 1920 2850
Average)
Dominant Wavelength[8] λd625 nm
Peak Wavelength λPEAK 635 nm
High Performance Green HCMS-2013/-2313/-2353
Description Symbol Test Condition Min. Typ. Max. Units
Peak Luminous VDD = 5.0 V
Intensity per HCMS-2013 V
COL = 3.5 V 850 1550
LED[5,9] HCMS-2313 IvPEAK VB = 2.4 V 1280 2410 µcd
(Character HCMS-2353 Ti = 25°C[7] 2400 3000
Average)
Dominant Wavelength[6,8] λd574 nm
Peak Wavelength λPEAK 568 nm
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Orange HCMS-2314/-2354
Description Symbol Test Condition Min. Typ. Max. Units
Peak Luminous VDD = 5.0 V
Intensity per V
COL = 3.5 V
LED[5,9] HCMS-2314 IvPEAK VB = 2.4 V 650 1430 µcd
(Character HCMS-2354 Ti = 25°C[7] 1920 2850
Average)
Dominant Wavelength[8] λd602 nm
Peak Wavelength λPEAK 600 nm
All typical values specified at VDD = 5.0 V and TA = 25°C unless otherwise noted.
Notes:
5. These LED displays are categorized for luminous intensity, with the intensity category designated by a letter code on the
back of the package.
6. The HCMS-2011/-2311/-2351 and HCMS-2013/-2313/-2353 are categorized for color with the color category designated by a
number on the back of the package.
7. Ti refers to the initial case temperature of the display immediately prior to the light measurement.
8. Dominant wavelength, λd, is derived from the CIE Chromaticity Diagram, and represents the single wavelength which
defines the color of the device.
9. The luminous sterance of the individual LED pixels may be calculated using the following equations:
Lv(cd/m2) = lv(Candela)*DF/A(Metre)2
Lv(Footlamberts) = πIv(Candela)*DF/A(Foot)2
Where: A = LED pixel area = 5.3 x 10-8M2 or 5.8 x 10-7ft2
DF = LED on-time duty factor
Parameter Condition Typ. Max. Units
fclock CLOCK Rate 5 MHz
tPLH, tPHL CL = 15 pF 105 ns
Propagation Delay RL = 2.4 k
CLOCK to DATA
OUT
tOFF
VB (0.4 V) to
Display OFF 4 5
tON µs
VB (2.4 V) to
Display ON 1 2
Switching Characteristics, TA = 55°C to +100°C
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Figure 3. Peak Column Current vs
Column Voltage.
Figure 2. Relative Luminous Intensity
vs Ambient Temperature.
Figure 1. Maximum Allowable Power
Dissipation vs Ambient Temperature
as a Function of Thermal Resistance
Junction-to-Ambient, RθJ-A. Derated
Operation Assumes RθPC-A = 35°C/W
per Display for Printed Circuit Board.
TJ (IC) MAX = 130°C.
RθJ-A (TA = 100°C)
= 22°C/W for HCMS-235X Series
= 32°C/W for HCMS-231X Series
= 38°C/W for HCMS-201X Series.
Electrical Description
Each display device contains four
5 x 7 LED dot matrix characters
and two CMOS integrated
circuits, as shown in Figure 4.
The two CMOS integrated circuits
form an on-board 28 bit serial-in-
parallel-out shift register that will
accept standard TTL logic levels.
The Data Input, pin 12, is
connected to bit position 1 and
the Data Output, pin 7, is
connected to bit position 28. The
shift register outputs control
constant current sinking LED row
drivers. The nominal current sink
per LED driver is 11 mA for the
HCMS-201X displays, 13 mA for
the HCMS-231X displays and
18 mA for the HCMS-235X
displays. A logic 1 stored in the
shift register enables the
corresponding LED row driver
and a logic 0 stored in the shift
register disables the
corresponding LED row driver.
The electrical configuration of
these CMOS IC alphanumeric
displays allows for an effective
interface to a display controller
circuit that supplies decoded
character information. The row
data for a given column (one 7 bit
byte per character) is loaded (bit
serial) into the on-board 28 bit
shift register with high to low
transitions of the Clock input. To
load decoded character informa-
tion into the display, column data
for character 4 is loaded first and
the column data for character 1 is
loaded last in the following
manner. The 7 data bits for
column 1, character 4, are loaded
into the on-board shift register.
Next, the 7 data bits for column
1, character 3, are loaded into the
shift register, shifting the charac-
ter 4 data over one character
position. This process is repeated
for the other two characters until
all 28 bits of column data (four 7
bit bytes of character column
data) are loaded into the on-
board shift register. Then the
column 1 input, VCOL pin 1, is
energized to illuminate column 1
in all four characters. This
process is repeated for columns
2, 3, 4 and 5. All VCOL inputs
should be at logic low to insure
the display is off when loading
data. The display will be blanked
when the blanking input VB, pin
8, is at logic low regardless of the
outputs of the shift register or
whether one of the VCOL inputs is
energized.
Refer to Application Note 1016
for drive circuit information.
ESD Susceptibility
The HCMS-201X/-231X/-235X
series displays have an ESD
susceptibility ratings of CLASS 3
per DOD-STD-1686 and CLASS B
per MIL-STD-883C. It is
recommended that normal CMOS
handling precautions be observed
with these devices.
Soldering and Post Solder
Cleaning
These displays may be soldered
with a standard wave solder
process using either an RMA flux
and solvent cleaning or an OA
flux and aqueous cleaning. For
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Figure 4. Block Diagram of an HCMS-2XXX Series LED Alphanumeric Display.
optimum soldering, the solder
wave temperature should be
245°C and the dwell time for any
display lead passing through the
wave should be 11/2 to 2 seconds.
For more detailed information,
refer to Application Note 1027
Soldering LED Components.
Contrast Enhancement
When used with the proper
contrast enhancement filters, the
HCMS-235X series displays are
readable in sunlight and the
HCMS-201X/231X series displays
are readable in daylight ambients.
Refer to Application Note 1029
Luminous Contrast and
Sunlight Readability of the
HDSP-235X Series Alphanu-
meric Displays for Military
Applications for information on
contrast enhancement for sun-
light and daylight ambients. Refer
to Application Note 1015
Contrast Enhancement Tech-
niques for LED Displays for
information on contrast enhance-
ment in moderate ambients.
Night Vision Lighting
When used with the proper NVG/
DV filters, the HCMS-2311/-2351
and HCMS-2133/-2353 displays
may be used in night vision
lighting applications. The HCMS-
2311/-2351 (yellow) displays are
used as master caution and
warning indicators. The HCMS-
2313/-2353 (high performance
green) displays are used for
general instrumentation. For a
list of NVG/DV filters and a
discussion on night vision
lighting technology, refer to
Application Note 1030 LED
Displays and Indicators and
Night Vision Imaging System
Lighting.
Controller Circuits,
Power Calculations and
Display Dimming
Refer to Application Note 1016
Using the HDSP-2000
Alphanumeric Display Family
for information on controller
circuits to drive these displays,
how to do power calculations and
a technique for display dimming.