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Technical content
Features
Smart alphanumeric display Built-in RAM, ASCII decoder, and LED drive circuitry Software controlled dimming and blanking 128 ASCII character set End-stackable Categorized for luminous intensity – Yellow and Green categories for color – Use of like categories yields a uniform display Wide operating temperature range -40°C to +85°C Wave solderable Wide viewing angle (50° typical)
Description
These are 5 x 7 dot matrix displays with four 0.27” tall char- acters, driven by an on-board CMOS IC. The IC stores and decodes 7 bit ASCII data and displays it with an easy to read 5 x 7 font. Multi-plexing circuitry and drivers are included in the IC to allow the display to interface simply with bus-based micro processor systems. The address and data inputs of the display can be directly con nected to the microprocessor address and data buses. These displays are related to the HDLX-2416 family, and thus share the same enhancements over the HPDL-2416 segmented displays. These features include support for the full 128 character US ASCII character set, 8 level dimming control, external hardware dimming capability, and digit blanking. An extended function disable exists for those designers who desire compatibility with competitive displays. This function disables the dimming and digit blanking controls. Devices: High Effi ciency Red Orange Yellow Green HDLO-3416 HDLA-3416 HDLY-3416 HDLG-3416
Supply Voltage, VDD to Ground[1] -0.5 V to 7.0 V Input Voltage, Any Pin to Ground -0.5 V to V DD + 0.5 V Free Air Operating Temperature Range, TA -40°C to +85°C Storage Temperature, TS -40°C to +85°C CMOS IC Junction Temperature, TJ (IC) +150°C Relative Humidity (non-condensing) at 65°C 85% Soldering Temperature [1.59 mm (0.063 in.) Below Body] Solder Dipping 260°C for 5 secs Wave Soldering 250°C for 3 secs ESD Protection, R = 1.5 k, C = 100 pF V Z = 1 kV (each pin) Note: 1. Maximum Voltage is with no LEDs illuminated. Package Dimensions Notes: 1. Unless otherwise specifi ed, the tolerance on all dimensions is ± 0.254 mm (0.010). 2. All dimensions are in millimeters (inches). 32.77 (1.290) 8.26 (0.325) 10.03 (0.395) 20.07 (0.790) 6.86 (0.270) 4.45 (0.175) 0.51 (0.020)TYP. 8.64 (0.340) 2.54 (0.100)TYP. 4.06 (0.160) 10.16 (0.400) 2.41 (0.095)TYP. 0.38 (0.015) 15.24 (0.600) 0.25 (0.010)TYP. PIN 1 IDENTIFIER PIN NO. FUNCTION PIN NO. FUNCTION NO CONNECT NO CONNECT CE1 CE2 CLR V DD WR CU CUE GROUND NO CONNECT BL NO CONNECT
A B C D E F 000 0 001 1 010 2 011 3 100 4 101 5 110 6 111 7 NOTES: 1 = HIGH LEVEL 0 = LOW LEVEL
Electrical/Optical Characteristics over Operating Temperature Range 4.5 < VDD < 5.5 V (unless otherwise specifi ed) All Devices 25°C [1] Parameter Symbol Min. Typ. Max. Max. Units Test Conditions IDD Blank I DD (blnk) 1.0 4.0 mA All Digits Blanked Input Current I I -40 10 A V IN = 0 V to VDD V DD = 5.0 V Input Voltage High V IH 2.0 V DD V Input Voltage Low V IL GND 0.8 V IDD 4 Digits 20 Dots/ I DD (#) 110 130 160 mA “#” ON in All Four Character[2,3] Locations IDD Cursor All Dots I DD (CU) 92 110 135 mA Cursor ON in All ON @ 50% Four Locations Notes: 1. V DD = 5.0 V 2. Average I DD measured at full brightness. Peak IDD = 28/15 x Average IDD (#). 3. I DD (#) max. = 130 mA, 150°C IC junction temperature and VDD = 5.5 V. Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Units Supply Voltage V DD 4.5 5.0 5.5 V
Optical Characteristics at 25°C [1] VDD = 5.0 V at Full Brightness High Effi ciency Red HDLO-3416 Parameter Symbol Min. Typ. Units Test Conditions Average Luminous Intensity I V 1.2 3.5 mcd “*” Illuminated in All Four Digits. per Digit, Character Average 19 Dots ON per Digit. Peak Wavelength PEAK 635 nm Dominant Wavelength[2] D 626 nm Orange HDLA-3416 Parameter Symbol Min. Typ. Units Test Conditions Average Luminous Intensity I V 1.2 3.5 mcd “*” Illuminated in All Four Digits per Digit, Character Average 19 Dots ON per Digit. Peak Wavelength PEAK 600 nm Dominant Wavelength[2] D 602 nm Yellow HDLY-3416 Parameter Symbol Min. Typ. Units Test Conditions Average Luminous Intensity I V 1.2 3.7 mcd “*” Illuminated in All Four Digits per Digit, Character Average 19 Dots ON per Digit. Peak Wavelength PEAK 583 nm Dominant Wavelength[2] D 585 nm Green HDLG-3416 Parameter Symbol Min. Typ. Units Test Conditions Average Luminous Intensity I V 1.2 5.6 mcd “*” Illuminated in All Four Digits per Digit, Character Average 19 Dots ON per Digit. Peak Wavelength PEAK 568 nm Dominant Wavelength[2] D 574 nm Notes: 1. Refers to the initial case temperature of the device immediately prior to the light measurement. 2. Dominant wavelength, D, is derived from the CIE chromaticity diagram, and represents the single wavelength which defi nes the color of the device.
AC Timing Characteristics over Operating Temperature Range at VDD = 4.5 V Parameter Symbol Min Units Address Setup t AS 10 ns Address Hold t AH 40 ns Data Setup t DS 50 ns Data Hold t DH 40 ns Chip Enable Setup t CES 0 ns Chip Enable Hold t CEH 0 ns Write Time t W 75 ns Clear t CLR 10 s Clear Disable t CLRD 1 s Timing Diagram Enlarged Character Font Notes: 1. Unless otherwise specifi ed, the tolerance on all dimensions is ± 0.254 mm (0.010"). 2. Dimensions are in millimeters (inches). CE1 tCES tAS tW tAH tCEH 2.0 V 0.8 V 2.0 V 0.8 V 2.0 V 0.8 V 2.0 V 0.8 V tDS tDH tCLRDtCLR 2.0 V 0.8 V CE2 A0 – A 1, CU WR D0 – D 6 CLR 1.05 (0.041) TYP. 6.9 (0.27) TYP. 1.09 (0.043) TYP. 0.25 (0.010) TYP. 4.4 (0.175) TYP.
Display Internal Block Diagram Figure 1 shows the HDLX-3416 display internal block diagram. The CMOS IC consists of a 4 x 7 Character RAM, a 2 x 4 Attribute RAM, a 5 bit Control Register, a 128 character ASCII decoder and the refresh circuitry necessary to syn- chronize the decoding and driving of four 5 x 7 dot matrix displays. Four 7 bit ASCII words are stored in the Character RAM. The IC reads the ASCII data and decodes it via the 128 character ASCII decoder. The ASCII decoder includes the 64 character set of the HPDL-2416, 32 lower case ASCII symbols, and 32 foreign language symbols. A 5 bit word is stored in the Control Register. Three fi elds within the Control Register provide an 8 level brightness control, master blank, and extended functions disable. For each display digit location, two bits are stored in the Attribute RAM. One bit is used to enable a cursor character at each digit location. A second bit is used to individually disable the blanking features at each digit location. The display is blanked and dimmed through an internal blanking input on the row drivers. Logic within the IC allows the user to dim the display either through the BL input or through the brightness control in the control register. Similarly the display can be blanked through the BL input, the Master Blank in the Control Register, or the Digit Blank Disable in the Attribute RAM. Electrical Description Pin Function Description Chip Enable (CE1 and CE 1 and CE2 must be a logic 0 to write to the display. CE2, Pins 3 and 4) Clear (CLR, Pin 5) When CLR is a logic 0 the ASCII RAM is reset to 20hex (space) and the Control Register/Attribute RAM is reset to 00hex. Cursor Enable CUE determines whether the IC displays the ASCII or (CUE Pin 11) the Cursor memory. (1 = Cursor, 0 = ASCII.) Cursor Select CU determines whether data is stored in the ASCII (CU, Pin 10) RAM or the Attribute RAM/Control Register. (1 = ASCII, 0 = Attribute RAM/ Control Register.) Write (WR, Pin 9) WR must be a logic 0 to store data in the display. Address Inputs A 0-A1 selects a specifi c location in the display (A1 and A0, Pins memory. Address 00 accesses the far right display 7 and 8) location. Address 11 accesses the far left location. Data Inputs (D0-D6, D 0-D6 are used to specify the input data for Pins 16 – 22) the display. VDD (Pin 6) V DD is the positive power supply input. GND (Pin 12) GND is the display ground. Blanking Input BL is used to fl ash the display, blank the (BL, Pin 14) display or to dim the display.
Figure 1. Internal block diagram.
7 CHARACTER
3 ROW
2 READ
Figure 2. Display truth table. Figure 2 shows a truth table for the HDLX-3416 display. 0-A1 are used to select the digit location in the display. logic 0, data is stored in the right most display location. stored in the Digit Cursor memory in the Attribute RAM. will be dis played regardless of the Digit Cursor bits.
0 Digit Digit
1 X X
Table 1. Current Requirements at Diff erent Brightness Levels Figure 3. Display blanking truth table. and BL input can be used to blank the display. signal can be applied to the BL input to dim the display. internal pulse width modulated signal to dim the display. Extended Function Disable is a logic 0. brightness level as shown in Table 1.
0 X 1 0
1 X X 0
1 X X 1
For product information and a complete list of distributors, please go to our web site: www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved. Obsoletes 5989-3189EN AV02-3642EN - June 20, 2012 Intensity Bin Limits Intensity Range (mcd) Bin Min. Max. A 1.20 1.77 B 1.45 2.47 C 2.02 3.46 D 2.83 4.85 E 3.97 6.79 F 5.55 9.50 G 7.78 13.30 Note: Test conditions as specifi ed in Optical Characteristic table. Color Bin Limits Color Range (nm) Color Bin Min. Max. Green 1 576.0 580.0 2 573.0 577.0 3 570.0 574.0 4 567.0 571.5 Yellow 3 581.5 585.0 4 584.0 587.5 5 586.5 590.0 6 589.0 592.5 Note: Test conditions as specifi ed in Optical Characteristic table.