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SN74LS173AD Datasheet(PDF) 7 Page - Texas Instruments |
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SN74LS173AD Datasheet(HTML) 7 Page - Texas Instruments |
7 / 20 page SN54173, SN54LS173A, SN74173, SN74LS173A 4-BIT D-TYPE REGISTERS WITH 3-STATE OUTPUTS SDLS067A – OCTOBER 1976 – REVISED JUNE 1999 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions SN54LS173A SN74LS173A UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 4.75 5 5.25 V IOH High-level output current –1 –2.6 mA IOL Low-level output current 12 24 mA TA Operating free-air temperature –55 125 0 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS† SN54LS173A SN74LS173A UNIT PARAMETER TEST CONDITIONS† MIN TYP‡ MAX MIN TYP‡ MAX UNIT VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.7 0.8 V VIK Input clamp voltage VCC = MIN, II = –18 mA –1.5 –1.5 V VOH High-level output voltage VCC = MIN, VIL = VILmax, VIH = 2 V, IOH = MAX 2.4 3.4 2.4 3.1 V VOL Low level output voltage VCC = MIN, IOL = 12 mA 0.25 0.4 0.25 0.4 V VOL Low-level output voltage CC , VIL = 0.8 V, IOL = 24 mA 0.35 0.5 V IO( ff) Off-state (high-impedance state) VCC = MAX, VO = 2.7 V 20 20 V IO(off) (g ) output current CC , VIH = 2 V VO = 0.4 V –20 –20 V II Input current at maximum input voltage VCC = MAX, VI = 7 V 0.1 0.1 mA IIH High-level input current VCC = MAX, VI = 2.7 V 20 20 µA IIL Low-level input current VCC = MAX, VI = 0.4 V –0.4 –0.4 mA IOS Short-circuit output current§ VCC = MAX –30 –130 –30 –130 mA ICC Supply current VCC = MAX, See Note 4 19 30 19 24 mA † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values are at VCC = 5 V, TA = 25°C. § Not more than one output should be shorted at a time. NOTE 4: ICC is measured with all outputs open; CLR grounded, following momentary connection to 4.5 V, N, G1, G2, and all data inputs grounded; and CLK and M at 4.5 V. timing requirements over recommended operating conditions (unless otherwise noted) SN54LS173A SN74LS173A UNIT MIN MAX MIN MAX UNIT fclock Input clock frequency 30 25 MHz tw Pulse duration CLK or CLR 25 25 ns Data enable (G1, G2) 35 35 tsu Setup time Data 17 17 ns CLR (inactive state) 10 10 th Hold time Data enable (G1, G2) 0 0 ns th Hold time Data 3 3 ns |
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