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SN54HCT14 Datasheet(PDF) 3 Page - Texas Instruments |
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SN54HCT14 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 18 page SN54HCT14, SN74HCT14 HEX SCHMITT-TRIGGER INVERTERS SCLS225E – JULY 1995 – REVISED JULY 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54HCT14 SN74HCT14 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT VT+ Positive going 4.5 V 1.2 1.5 1.9 1.2 1.9 1.2 1.9 V Positive-going threshold 5.5 V 1.4 1.7 2.1 1.4 2.1 1.4 2.1 V VT– Negative going 4.5 V 0.5 0.9 1.2 0.5 1.2 0.5 1.2 V Negative-going threshold 5.5 V 0.6 1 1.4 0.6 1.4 0.6 1.4 V ∆VT Hysteresis 4.5 V 0.4 0.6 1.4 0.4 1.4 0.4 1.4 V Hysteresis (VT+ – VT–) 5.5 V 0.4 0.65 1.5 0.4 1.5 0.4 1.5 V VOH IOH = –20 µA 4.5 V 4.4 4.49 4.4 4.4 V VOH IOH = –4 mA 4.5 V 3.98 4.3 3.7 3.84 V VOL IOL = 20 µA 4.5 V 0.001 0.1 0.1 0.1 V VOL IOL = 4 mA 4.5 V 0.17 0.26 0.4 0.33 V II VI = VCC or GND 5.5 V ±0.1 ±1 ±1 µA ICC VI = VCC or GND, IO = 0 5.5 V 2 40 20 µA ∆ICC† One input at 0.5 V or 2.4 V, Other inputs at GND or VCC 5.5 V 0.2 2.4 3 2.9 mA Ci VI = VCC or GND 5 V 3 10 10 10 pF † This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC. switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM TO VCC TA = 25°C SN54HCT14 SN74HCT14 UNIT PARAMETER (INPUT) (OUTPUT) VCC MIN TYP MAX MIN MAX MIN MAX UNIT t d A Y 4.5 V 20 32 48 40 ns tpd A Y 5.5 V 18 30 45 38 ns tt Y 4.5 V 7 15 22 19 ns tt Y 5.5 V 6 14 20 17 ns operating characteristics, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance No load 10 pF |
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