HDLS-2416

HDLX-2416 HP | Alldatasheet

Document overview

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Technical content

Features

• Enhanced Drop-in Replace- ment to HPDL-2416
• Smart Alphanumeric Display Built-in RAM, ASCII Decoder, and LED Drive Circuitry
• CMOS IC for Low Power Consumption
• Software Controlled Dimming Levels and Blank
• 128 ASCII Character Set
• End-Stackable
• Categorized for Luminous Intensity; Yellow and Green Categorized for Color
• Low Power and Sunlight Viewable AlGaAs Versions
• Wide Operating Temperature Range -40°C to +85°C
• Excellent ESD Protection
• Wave Solderable
• Wide Viewing Angle (50 ° typ) Devices: Standard Red AlGaAs Red High Efficiency Red Orange Yellow Green HDLR-2416 HDLS-2416 HDLO-2416 HDLA-2416 HDLY-2416 HDLG-2416 HDLU-2416 Absolute Maximum Ratings Maximum Solder Temperature, 1.59 mm Z = 2 kV (each pin) Note: 1. Maximum Voltage is with no LEDs illuminated. HDLX-2416 Series ESD WARNING: STANDARD CMOS HANDLING PRECAUTIONS SHOULD BE OBSERVED WITH THE HDLX-2416

The address and data inputs can be directly connected to the microprocessor address and data buses. The HDLX-2416 has several enhancements over the HPDL- 2416. These features include an expanded character set, internal 8 level dimming control, external dimming capability, and individ- ual digit blanking. Finally, the extended functions can be disabled which allows the HDLX- 2416 to operate exactly like an HPDL-2416 by disabling all of the enhancements except the ex- panded character set. The difference between the sunlight viewable HDLS-2416 and the low power HDLU-2416 occurs at power-on or at the default brightness level. Following power up, the HDLS-2416 operates at the 100% brightness level, while Pin Pin No. Function No. Function 1C E 1 Chip Enable 10 GND 2C E 2 Chip Enable 11 D 0 Data Input

3 CLR Clear 12 D 1 Data Input

4 CUE Cursor Enable 13 D 2 Data Input

5 CU Cursor Select 14 D 3 Data Input

6 WR Write 15 D 6 Data Input

7A 1 Address Input 16 D 5 Data Input 8A 0 Address Input 17 D 4 Data Input 9V DD 18 BL Display Blank Notes: 1. Unless otherwise specified, the tolerance on all dimensions is ± 0.254 mm (± 0.010") 2. All dimensions are in mm/inches. 3. For yellow and green displays only. Package Dimensions the HDLU-2416 operates at the 27% brightness level. Power on sets the internal brightness control (bits 3-5) in the control register to binary code (000). For the HDLS-2416 binary code (000) corresponds to a 100% brightness level, and for the HDLU-2416 binary code (000) corresponds to a 27% brightness level. The other seven brightness levels are identical for both parts.

NOTES: 1 = HIGH LEVEL 0 = LOW LEVEL

Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Unit Supply Voltage V DD 4.5 5.0 5.5 V Electrical Characteristics over Operating Temperature Range 4.5 < VDD < 5.5 V (unless otherwise specified) 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 µAV IN = 0 V to VDD VDD = 5.0 V Input Voltage High V IH 2.0 V DD V Input Voltage Low V IL GND 0.8 V HDLO/HDLA/HDLY/HDLG-2416 25°C[1] Parameter Symbol Min. Typ. Max. Max. Units Test Conditions IDD 4 digits I DD(#) 110 130 160 mA "#" ON in all four 20 dots/character[2, 3] locations IDD Cursor all I DD (CU) 92 110 135 mA Cursor ON in all dots ON @ 50% four locations Notes: 1. VDD = 5.0 V 2. Average IDD measured at full brightness. Peak IDD = 28/15 x Average IDD(#). 3. IDD(#) max. = 130 mA for HDLO/HDLA/HDLY/HDLG-2416, 146 mA for HDLR/HDLS-2416, and 42 mA for HDLU-2416 at default brightness, 150°C IC junction temperature and VDD = 5.5 V. HDLS/HDLU-2416 25°C[1] Part Number Parameter Symbol Typ. Max. Max. Units Test Conditions HDLS-2416 I DD 4 digits I DD(#) 125 146 180 mA Four "#" ON in 20 dots/character[2,3] all four locations HDLU-2416 34 42 52 HDLS-2416 I DD Cursor all dots IDD(CU) 105 124 154 mA Four cursors ON ON @ 50% in all four locations HDLU-2416 29 36 45 HDLR-2416 25°C[1] Parameter Symbol Min. Typ. Max. Max. Units Test Conditions IDD 4 digits I DD (#) 125 146 180 mA "#" ON in all four 20 dots/character[2,3] locations IDD Cursor I DD(CU) 105 124 154 mA Cursor ON in all all dots ON @ 50% four locations

Optical Characteristics at 25°C[1] VDD = 5.0 V at Full Brightness HDLR-2416 Parameter Symbol Min. Typ. Units Test Conditions Average Luminous I V 0.5 1.1 mcd ''*'' illuminated in all four digits. Intensity per digit, 19 dots ON Character Average Peak Wavelength λ PEAK 655 nm Dominant Wavelength[2] λd 640 nm HDLS/HDLU-2416 Part Number Parameter Symbol Min. Typ. Units Test Conditions HDLS-2416 Average Luminous I V 4.0 12.7 mcd ''*'' illuminated in all Intensity per digit, four digits, 19 dots ON HDLU-2416 Character Average 1.2 3.1 mcd per digit. All Peak Wavelength λPEAK 645 nm Dominant Wavelength[2] λd 637 nm HDLO-2416 Parameter Symbol Min. Typ. Units Test Conditions Average Luminous I V 1.2 3.5 mcd ''*'' illuminated in all four digits. Intensity per digit, 19 dots ON Character Average Peak Wavelength λ PEAK 635 nm Dominant Wavelength[2] λd 626 nm HDLA-2416 Parameter Symbol Min. Typ. Units Test Conditions Average Luminous I V 1.2 3.5 mcd ''*'' illuminated in all four digits. Intensity per digit, 19 dots ON Character Average Peak Wavelength λ PEAK 600 nm Dominant Wavelength[2] λd 602 nm HDLY-2416 Parameter Symbol Min. Typ. Units Test Conditions Average Luminous I V 1.2 3.7 mcd ''*'' illuminated in all four digits. Intensity per digit, 19 dots ON Character Average Peak Wavelength λ PEAK 583 nm Dominant Wavelength[2] λd 585 nm

Parameter Symbol Min. Typ. Units Test Conditions Average Luminous I V 1.2 5.6 mcd ''*'' illuminated in all four digits. Intensity per digit, 19 dots ON Character Average Peak Wavelength λ PEAK 568 nm Dominant Wavelength[2] λd 574 nm Notes: 1. Refers to the initial case temperature of the device immediately prior to the light measurement. 2. Dominant wavelength, λ d, is derived from the CIE chromaticity diagram, and represents the single wavelength which defines 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 0n s Chip Enable Hold t CEH 0n s Write Time t W 75 ns Clear t CLR 10 µs Clear Disable t CLRD 1 µs Timing Diagram Enlarged Character Font Notes: 1. Unless otherwise specified the tolerance on all dimensions is ± 0.254 mm (0.010") 2. Dimensions are in mm (inches).

Figure 1 shows the HDLX-2416 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 synchronize 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 fields within the Control Register provide an 8 level brightness control, master blank, and ex- tended 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 CE 1 and CE2 must be a logic 0 to write to the (CE1 and CE2, display. pins 1 and 2) Clear When CLR is a logic 0 the ASCII RAM is reset (CLR, pin 3) to 20hex (space) and the Control Register/ Attribute RAM is reset to 00hex. Cursor Enable CUE determines whether the IC displays the (CUE pin 4) ASCII or the Cursor memory. (1 = Cursor, 0 = ASCII). Cursor Select CU determines whether data is stored in the (CU, pin 5) ASCII RAM or the Attribute RAM/Control Register. (1 = ASCII, 0 = Attribute RAM/Control Register). Write WR must be a logic 0 to store data in the (WR, pin 6) display. Address A 0-A1 selects a specific location in the display Inputs memory. Address 00 accesses the far right 1 and A0, display location. Address 11 accesses the far pins 8 and 7) left location. Data Inputs D 0-D6 are used to specify the input data for the (D0-D6, display. pins 11-17) VDD VDD is the positive power supply input. (pin 9) GND GND is the display ground. (pin 10) Blanking BL is used to flash the display, blank the Input display or to dim the display. (BL, pin 18)

Figure 1. Internal Block Diagram

Table 1. Current Requirements at Different Brightness Levels

1 X X 0 Display Blanked by BL

1 X X 1 Display ON

Figure 3. Display Blanking Truth Table (111) to the minimum brightness. be used to blank the display. Function Disable is a logic 0.

for all possible input conditions.

140 LEDs and a CMOS IC to a

been applied to the display. solder side of the PC board. chrominance contrast techniques. ment, see Application Note 1015. adjust the display intensity. ming functions in the HDLX-2416. Blank Disable bits are ignored. Figure 4. Intensity Modulation Control

www.semiconductor.agilent.com Data subject to change. Copyright © 2001 Agilent Technologies, Inc. July 20, 2001 Obsoletes 5964-6380E (11/99) 5988-3269EN Color Range (nm) Color Bin Min. Max. Yellow 3 581.5 585.0 4 584.0 587.5 5 586.5 590.0 6 589.0 592.5 Green 1 576.0 580.0 2 573.0 577.0 3 570.0 574.0 4 567.0 571.5 Intensity Range (mcd) Bin Min. Max. A 0.54 0.90 B 0.74 1.31 C 0.93 1.42 D 1.16 1.77 E 1.45 2.21 Note: Test conditions as specified in Optical Characteristic table. Color Bin Limits Note: Test conditions as specified in Optical Characteristic table. Intensity Range (mcd) Bin Min. Max. E 3.97 6.79 F 5.55 9.50 G 7.78 13.30 H 10.88 18.62 I 15.24 26.07 J 21.33 36.49 Note: Test conditions as specified in Optical Characteristic table. Intensity Bin Limits for HDLR-2416 Intensity Bin Limits for HDLS-2416 Intensity Range (mcd) Bin Min. Max. A 1.20 1.77 B 1.25 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 specified in Optical Characteristic table. Intensity Bin Limits for HDLX-2416