MC14489P Motorola, MC14489P Datasheet
MC14489P
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MC14489P Summary of contents
Page 1
... Using the MC68HC05B4 and the MC14489 and Engineering Bulletin EB153, Driving a Seven–Segment Display with the N BitGrabber is a trademark of Motorola Inc. MICROWIRE is a trademark of National Semiconductor Corp. REV 3 10/95 MOTOROLA Motorola, Inc. 1995 MC14489 ORDERING INFORMATION MC14489P MC14489DW PIN ASSIGNMENT registers augment BANK 1 ...
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... For proper operation and V out should be constrained to the range out ) Unused inputs must always be tied to an ap- propriate logic voltage level (e.g., either Unused outputs must be left open. MOTOROLA ...
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... Bank 2, Bank 3, Bank 4, Bank Maximum Quiescent Supply Current I ss Maximum RMS Operating Supply Current (The V SS leg does not contain the Rx current component. See Pin Descriptions.) * See Thermal Considerations section. MOTOROLA V DD Guaranteed V Limit Test Condition — 4.5 to 6.0 Bits Retained in Display and — ...
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... J = – 130 C pF, Input ns) Parameter Parameter V DD Guaranteed V Limit Unit 3 3.0 MHz 4 4.0 6 4.0 3.0 140 ns 4.5 80 6 4.5 50 6 4.5 700 to 1900 6.0 700 to 1900 — Guaranteed V Limit Unit 3 4.5 40 6.0 40 3.0 150 ns 4.5 100 6.0 100 3.0 4.5 s 4.5 3.4 6.0 3.4 3.0 300 ns 4.5 150 6.0 150 3.0 167 ns 4.5 125 6.0 125 3 4.5 1 6.0 1 MOTOROLA ...
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... TLH t THL Figure 1. VALID 50% DATA 50% CLOCK Figure 3. TEST POINT DEVICE UNDER C L TEST * Includes all probe and fixture capacitance. Figure 5. MOTOROLA BANK 50% OUTPUT ENABLE 50 CLOCK 50% FIRST V SS CLOCK * * Includes all probe and fixture capacitance. ...
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... Values for Rx range from 700 ity. When Rx = (open circuit), the display is extinguished. For proper current control, resistors having should be used. See Figure 9. CAUTION Small Rx values may cause the chip to overheat if precautions are not observed. See Thermal Considerations. to infin- 1% tolerance MOTOROLA ...
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... The display is refreshed at a nominal 1 kHz rate to achieve optimum brightness from the LEDs. A 20% duty cycle is uti- lized. MOTOROLA Special design techniques are used on–chip to accommo- date the high currents with low EMI (electromagnetic interfer- ence) and minimal spiking on the power lines. ...
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... MOTOROLA ...
Page 9
... Individually controlling lamps. b. Controlling a half digit with sign. c. Controlling annunciators - examples: AM, PM, UHF, kV, mm Hg. 2. Can be used as capital S. 3. Can be used as capital B. 4. Can be used as small g. MOTOROLA 7–Segment Display Characters Special Hex Decode Decode (Invoked via (Invoked via ...
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... WITH D23 = LOW CUT BY 50%. 800 1.2 k 1.6 k 2.0 k 2.4 k 2.8 k 3.2 k Rx, EXTERNAL RESISTOR ( ) 4TH BYTE CONFIGURATION REGISTER OF DEVICE 1 IN FIGURE 5TH BYTE 6TH BYTE BANK BANK BANK BANK BANK NIBBLE NIBBLE NIBBLE NIBBLE NIBBLE DISPLAY REGISTER OF DEVICE 1 IN FIGURE 11 3.6 k 4.0 k MOTOROLA ...
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... DATA OUT CMOS DATA IN MCU/MPU CLOCK ENABLE Figure 10. Non–Cascaded Application Example: 5 Character Common Cathode LED Display with Two Intensities as Controlled via Serial Port DATA IN CMOS MCU/MPU MOTOROLA APPLICATIONS INFORMATION a MC14489 BANK 5 BANK 4 ...
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... Figure 12. Bit Stream Formats for Three Devices Cascaded MC14489 12 MOTOROLA ...
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... Figure 13. Bit Stream Formats for Four Devices Cascaded MOTOROLA MC14489 13 ...
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... Figure 14. Bit Stream Formats for Five Devices Cascaded MC14489 14 MOTOROLA ...
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... R1 potentiometer ( 1/8 watt). R2 may be a light–sensitive resistor. Figure 15. Common–Cathode LED Display with Dial–Adjusted Brightness USE TO DRIVE LAMP OR MINUS SIGN NOTE: A Universal Overflow pins out all anodes and cathodes. MOTOROLA LED DISPLAY ...
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... BANK 2 for output h (two lamps). Then, use bits D20, D21, and D22 for control of these two lamps. MC14489 16 Figure 17. 25–Lamp Application THESE LAMPS INDEPENDENTLY CONTROLLED WITH BITS D0 TO D19 THESE LAMPS DEPENDENTLY CONTROLLED WITH BITS D20, D21, AND D22* MOTOROLA ...
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... Figure 18. 4–Digit Display Plus Decimals with Four Annunciators Figure 19. Compact Display System with Three Components MOTOROLA BANK 1 BANK 5 TO BANK 4 MC14489 3 CMOS MCU/MPU or 4–1/2–Digit Display Plus Sign MUXED 5–DIGIT MONOLITHIC DISPLAY (CLUSTER) HEWLETT– ...
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... Wide, radial traces from the MC14489 leads also act as heat spreaders. AAVID #5804 or equivalent (Tel. 603/524–4443, FAX 603/528–1478) Motorola cannot recommend one supplier over another and in no way suggests that this is the only heat sink supplier. Figure 20. Heat Sink Ref. (2) Ref ...
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... Table 2. LED Lamp and Common–Cathode QT Optoelectronics Hewlett–Packard (HP), Components Group Industrial Electronic Engineers (IEE), Component Products Div. Purdy Electronics Corp., AND Product Line NOTE: Motorola cannot recommend one supplier over another - -T- SEATING PLANE MOTOROLA Display Manufacturers ...
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... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating parameters, including “ ...