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CD74HCT4543 Datasheet(PDF) 4 Page - Texas Instruments |
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CD74HCT4543 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 10 page CD74HCT4543 BCD-TO-7 SEGMENT LATCH/DECODER/DRIVER SCHS281A – REVISED MAY 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature (unless otherwise noted)† Supply voltage range, VCC –0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input diode current, IIK (VI < –0.5 V or VI > VCC + 0.5 V) ) (see Note 1) ±20 mA . . . . . . . . . . . . . . . . . . . . . . . . Output diode current, IOK (VO < –0.5 V or VO > VCC + 0.5V) (see Note 1) ±20 mA . . . . . . . . . . . . . . . . . . . . . . Continuous output source or sink current per output, IO (VO = 0 to VCC) ±25 mA . . . . . . . . . . . . . . . . . . . . . . . Continuous current through VCC or GND ±50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Note 2) 67 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . At distance 1/16 ± 1/32 in. (1.59 ± 0.79 mm) from case for 10 s maximum 265 °C . . . . . . . . . . . . . . . . . . . . . Unit inserted into a PC board (min. thickness 1/16 in., 1.59 mm) with solder contacting lead tips only 300 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature, Tstg –65 to 150 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7. recommended operating conditions (see Note 3) TA = 25°C TA = –55°C TO 125 °C TA = –40°C TO 85 °C UNIT MIN MAX MIN MAX MIN MAX VCC Supply voltage 4.5 5.5 4.5 5.5 4.5 5.5 V VIH High-level input voltage 2 2 2 V VIL Low-level input voltage 0.8 0.8 0.8 V VI Input voltage VCC VCC VCC V VO Output voltage VCC VCC VCC V tt Input transition (rise and fall) time 500 500 500 ns NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C TA = –55°C TO 125 °C TA = –40°C TO 85 °C UNIT CC MIN TYP MAX MIN MAX MIN MAX VOH VI =VIH or VIL IOH = –20 µA 45 V 4.4 4.4 4.4 V VOH VI = VIH or VIL IOH = –4 mA 4.5 V 3.98 3.7 3.84 V VOL VI =VIH or VIL IOL = 20 µA 45 V 0.1 0.1 0.1 V VOL VI = VIH or VIL IOL = 4 mA 4.5 V 0.26 0.4 0.33 V II VI = VCC to GND 5.5 V ±0.1 ±1 ±1 µA ICC VI = VCC or 0, IO = 0 5.5 V 8 160 80 µA ∆ICC‡ One input at VCC – 2.1 V, Other inputs at 0 or VCC 4.5 V to 5.5 V 100 360 490 450 µA Ci 10 10 10 pF ‡ Additional quiescent supply current per input pin, TTL inputs high, 1 unit load. For dual-supply systems, theoretical worst-case (VI = 2.4 V, VCC = 5.5 V) specification is 1.8 mA. |
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