Datasheet

ManualsBrandsBROADCOM ManualsDisplaysDot matrix dislplay Red 4.83 mm No. of digits: 8

Devices

High High

Efficiency Performance

Yellow Red Green Orange

HDSP-2131 HDSP-2132 HDSP-2133 HDSP-2179

Description

The HDSP-2131 (yellow), HDSP-2179 (orange),

HDSP-2132 (high efficiency red) and the HDSP-2133

(green) are eight-digit, 5 x 7 dot matrix, alphanu-

meric displays. The 5.0 mm (0.2 inch) high characters

are packaged in a standard 7.64 mm (0.30 inch) 32

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 an on-board RAM. Seven

brightness levels provide versatility in adjusting the

display intensity and power consumption. The

HDSP-213x and HDSP-2179 are designed for stan-

dard microprocessor interface techniques. The

display and special features are accessed through a

bidirectional eight-bit data bus. These features

make the HDSP-213x and HDSP-2179 ideally suited

for applications where a hermetic, low power alpha-

numeric display is required.

Features

• Wide operating temperature range -55°C to +85°C

• Smart alphanumeric display

– On-board CMOS IC

– Built-in RAM

– ASCII decoder

– LED drive circuitry

• 128 ASCII character set

• 16 user definable characters

• Programmable features

– Individual character flashing

– Full display blinking

– Multi-level dimming and blanking

– Self test

– Clear function

• Read/write capability

• Full TTL compatibility

• HDSP-2131/-2133/-2179 useable in night vision

lighting applications

• Categorized for luminous intensity

• HDSP-2131/2133 categorized for color

• Excellent ESD protection

• Wave solderable

• X-Y stackable

• RoHS compliant

HDSP-2131, HDSP-2132, HDSP-2133, HDSP-2179

Eight Character 5.0 mm (0.2 inch) Glass/Ceramic

Intelligent 5x7 Alphanumeric Displays

for Military Applications

Data Sheet

Summary of content (16 pages)

PAGE 1
HDSP-2131, HDSP-2132, HDSP-2133, HDSP-2179 Eight Character 5.0 mm (0.2 inch) Glass/Ceramic Intelligent 5x7 Alphanumeric Displays for Military Applications Data Sheet Description The HDSP-2131 (yellow), HDSP-2179 (orange), HDSP-2132 (high efficiency red) and the HDSP-2133 (green) are eight-digit, 5 x 7 dot matrix, alphanumeric displays. The 5.0 mm (0.2 inch) high characters are packaged in a standard 7.64 mm (0.30 inch) 32 pin DIP.
PAGE 2
Package Dimensions 42.72 (1.68) 5.33 TYP. (0.210) 6.10 REF. (0.24) 2.67 TYP. (0.105) 9.91 (0.39) 0.38 TYP. (0.015) PIN 17 4.83 (0.190) 4.96 (0.195) 7.62 (0.300) 2.85 (0.112) PART NUMBER DATE CODE LIGHT INTENSITY CATEGORY COLOR BIN (NOTE 3) PIN #1 IDENTIFIER 6.35 MAX. (0.250) HDSP-XXXX YYWW X 1.78 TYP. (0.070) Z SEATING PLANE 6.00 (0.24) 12.70 (0.50) 2.29 TYP. (0.090) 0.51 TYP. (0.020) 1.27 TYP. (0.050) 2.54 TYP. (0.100) NON-ACCUM.
PAGE 3
Character Set D7 D6 0 0 D5 BIT S D4 D3 D2 0 0 0 0 D1 D0 COLUMN ROW 3 0 0 0 0 1 1 0 1 0 0 1 1 0 2 0 1 0 1 3 0 1 0 0 4 0 1 1 1 5 1 X 1 0 6 X 1 7 X 8–F 0000 0 16 0001 1 U S E R 0010 2 0011 3 0100 4 0101 5 0110 6 0111 7 1000 8 1001 9 1010 A 1011 B 1100 C 1101 D 1110 E 1111 F D E F I N E D C H A R A C T E R S
PAGE 4
Recommended Operating Conditions Parameter Supply Voltage Symbol VDD Minimum 4.5 Nominal 5.0 Maximum 5.5 Electrical Characteristics over Operating Temperature Range 4.5 < VDD < 5.5 V (unless otherwise specified) 25°C Parameter Symbol Min. Typ.[1] Input Leakage II -10.0 (Input without Pullup) Units V 25°C Max.[1] Max.[2] +10.0 Units µA 11 18 30 µA IDD (BLK) IDD(V) 0.5 200 1.5 255 2.0 330 mA mA IDD(#) 300 370 430 mA VDD +0.3 0.
PAGE 5
Optical Characteristics at 25°C[4] VDD = 5.0 V at Full Brightness High Efficiency Red HDSP-2132 Description Luminous Intensity Character Average (#) Peak Wavelength Dominant Wavelength Symbol IV lPEAK ld Minimum 2.5 Typical 7.5 635 626 Units mcd nm nm Orange HDSP-2179 Description Luminous Intensity Character Average (#) Peak Wavelength Dominant Wavelength Symbol IV lPEAK ld Minimum 2.5 Typical 7.
PAGE 6
AC Timing Characteristics over Temperature Range VDD = 4.5 to 5.
PAGE 7
AC Timing Characteristics Over Temperature Range VDD = 4.5 V to 5.5 V unless otherwise specified. Symbol Description 25°C Typical FOSC Oscillator Frequency 57 FRF[5] Display Refresh Rate 256 FFL[6] Character Flash Rate 2 tST[7] Self Test Cycle Time 4.6 Minimum[1] 28 128 1 9.2 Units kHz Hz Hz Sec Notes: 5. FRF = FOSC/224. 6. FFL = FOSC/28,672. 7. tST = 262,144/FOSC. Write Cycle Timing Diagram 1 A0 -A4 FL 4 2 3 CE 6 7 8 WR 10 9 D0 -D7 INPUT PULSE LEVELS: 0.6 V to 2.
PAGE 8
Read Cycle Timing Diagram 1 A0 -A4 FL 4 2 2 5 3 CE 6 7 11 RD 12 13 D0 -D7 INPUT PULSE LEVELS: 0.6 V to 2.4 V OUTPUT REFERENCE LEVELS: 0.6 V to 2.2 V OUTPUT LOADING = 1 TTL LOAD AND 100 pF Character Font Relative Luminous Intensity vs. Temperature 2.85 TYP. (0.112) C2 0.76 TYP. (0.030) C3 C4 C5 R1 R2 R3 R4 R5 R6 0.254 TYP. (0.010) R7 8 3.5 HDSP-2132 (HER) -2179 (ORANGE) HDSP-2131 (YELLOW) HDSP-2133 (GREEN) 3.0 2.5 2.0 1.5 1.0 0.5 0 -55 0.65 TYP. (0.026) NOTE: NOT TO SCALE 4.83 TYP.
PAGE 9
Electrical Description Pin Function Description RESET (RST, Pin 5) Reset initializes the display. FLASH (FL, Pin 27) FL low indicates an access to the Flash RAM and is unaffected by the state of address lines A3-A4. ADDRESS INPUTS (A0-A4, Pins 28-32) Each location in memory has a distinct address. Address inputs (A0-A2) select a specific location in the Character RAM, the Flash RAM or a particular row in the UDC (User-Defined Character) RAM.
PAGE 10
CLS CLK RST RD WR D0-D7 A0-A2 A3 A4 FL CE OCS A3 A4 FL CE A3 A4 FL CE UDC ADDR CLR1 RESET A3 A4 FL CE INTENSITY FLASH BLINK RESET CLOCK FLASH TEST OK CLR2 TIMING AND CONTROL TEST OK SELF TEST SELF TEST IN VISUAL TEST ROM TEST SELF TEST CLR START TIMING ROW SET CHAR ADDR EN FLASH RD DATA WR FLASH D0 RAM A0-A2 RESET CHAR ADDR 8x8 EN CHARACTER RD D0-D6 RAM WR D7 D0-D7 A0-A2 RESET CHAR ADDR Figure 1. HDSP-213x/-2179 internal block diagram.
PAGE 11
Display Internal Block Diagram Figure 1 shows the internal block diagram of the HDSP-213x/-2179 display. The CMOS IC consists of an 8 byte Character RAM, an 8 bit Flash RAM, a 128 character Character RAM Flash RAM User-Defined Character RAM (UDC RAM) User-Defined Character Address Register (UDC Address Register) Control Word Register eight 5 x 7 dot matrix characters.
PAGE 12
UDC RAM and UDC Address Register Figure 3 shows the logic levels needed to access the UDC RAM and the UDC Address Register. The UDC Address Register is eight bits wide. The lower four bits (D0D3) are used to select one of the 16 UDC locations. The upper four bits (D4-D7) are not used. Once the UDC address has been stored in the UDC Address Register, the UDC RAM can be accessed. To completely specify a 5 x 7 character requires eight write cycles.
PAGE 13
RST 1 CE 0 WR 0 0 1 1 RD 0 1 0 1 RST UNDEFINED WRITE TO DISPLAY READ FROM DISPLAY UNDEFINED 1 CONTROL SIGNALS FL 0 A4 X A3 X D6 A2 A1 A0 000 = LEFT MOST 111 = RIGHT MOST CHARACTER ADDRESS X X D5 X 0 WR 0 0 1 1 UNDEFINED WRITE TO DISPLAY READ FROM DISPLAY UNDEFINED FL A4 A3 A2 A1 A0 1 1 0 X X X CONTROL WORD ADDRESS D4 X D3 X D2 X D1 D0 X 0 1 FLASH RAM DATA FORMAT REMOVE FLASH AT SPECIFIED DIGIT LOCATION STORE FLASH AT SPECIFIED DIGIT LOCATION D7 D6 D5 D4 D3 D2
PAGE 14
Setting bit 6 to a logic 1 will start the self test function. The built-in self test function of the IC consists of two internal routines which exercises major portions of the IC and illuminates all of the LEDs. The first routine cycles the ASCII decoder ROM through all states and performs a checksum on the output. If the checksum agrees with the correct value, bit 5 is set to “1.” The second routine provides a visual test of the LEDs using the drive circuitry.
PAGE 15
antistatic packages or conductive material. During assembly, a grounded conductive work area should be used, and assembly personnel should wear conductive wrist straps. Lab coats made of synthetic material should be avoided since they are prone to static charge buildup. Input current latchup is caused when the CMOS inputs are subjected to either a voltage below ground (VIN < ground) or to a voltage higher than VDD (VIN > VDD) and when a high current is forced into the input.
PAGE 16
Contrast Enhancement When used with the proper contrast enhancement filters, the HCMS-213x/-2179 series displays are readable daylight ambients. Refer to Application Note 1029 Luminous Contrast and Sunlight Readability of the HDSP-235x Series Alphanumeric Displays for Military Applications for information on contrast enhancement for daylight ambients. Refer to Application Note 1015 Contrast Enhancement Techniques for LED Displays for information on contrast enhancement in moderate ambients.