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SN74HC166PWTE4 Datasheet(PDF) 4 Page - Texas Instruments |
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SN74HC166PWTE4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 19 page SN54HC166, SN74HC166 8BIT PARALLELLOAD SHIFT REGISTERS SCLS117D − DECEMBER 1982 − REVISED SEPTEMBER 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) SN54HC166 SN74HC166 UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 2 5 6 2 5 6 V VCC = 2 V 1.5 1.5 VIH High-level input voltage VCC = 4.5 V 3.15 3.15 V VIH High-level input voltage VCC = 6 V 4.2 4.2 V VCC = 2 V 0.5 0.5 VIL Low-level input voltage VCC = 4.5 V 1.35 1.35 V VIL Low-level input voltage VCC = 6 V 1.8 1.8 V VI Input voltage 0 VCC 0 VCC V VO Output voltage 0 VCC 0 VCC V VCC = 2 V 1000 1000 ∆t/∆v† Input transition rise/fall time VCC = 4.5 V 500 500 ns ∆t/∆v† Input transition rise/fall time VCC = 6 V 400 400 ns TA Operating free-air temperature −55 125 −40 85 °C 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. † If this device is used in the threshold region (from VILmax = 0.5 V to VIHmin = 1.5 V), there is a potential to go into the wrong state from induced grounding, causing double clocking. Operating with the inputs at tt = 1000 ns and VCC = 2 V does not damage the device; however, functionally, the CLK inputs are not ensured while in the shift, count, or toggle operating modes. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54HC166 SN74HC166 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT 2 V 1.9 1.998 1.9 1.9 IOH = −20 µA 4.5 V 4.4 4.499 4.4 4.4 VOH VI = VIH or VIL IOH = −20 µA 6 V 5.9 5.999 5.9 5.9 V VOH VI = VIH or VIL IOH = −4 mA 4.5 V 3.98 4.3 3.7 3.84 V IOH = −5.2 mA 6 V 5.48 5.8 5.2 5.34 2 V 0.002 0.1 0.1 0.1 IOL = 20 µA 4.5 V 0.001 0.1 0.1 0.1 VOL VI = VIH or VIL IOL = 20 µA 6 V 0.001 0.1 0.1 0.1 V VOL VI = VIH or VIL IOL = 4 mA 4.5 V 0.17 0.26 0.4 0.33 V IOL = 5.2 mA 6 V 0.15 0.26 0.4 0.33 II VI = VCC or 0 6 V ±0.1 ±100 ±1000 ±1000 nA ICC VI = VCC or 0, IO = 0 6 V 8 160 80 µA Ci 2 V to 6 V 3 10 10 10 pF |
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