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SN74LS374DBRE4 Datasheet(PDF) 7 Page - Texas Instruments |
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SN74LS374DBRE4 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 28 page SN54LS373, SN54LS374, SN54S373, SN54S374, SN74LS373, SN74LS374, SN74S373, SN74S374 OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS SDLS165B – OCTOBER 1975 – REVISED AUGUST 2002 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS† SN54LS’ SN74LS’ 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, VIH = 2 V, 24 34 24 31 V VOH High-level output voltage CC , VIL = VIL max, IH , IOH = MAX 2.4 3.4 2.4 3.1 V VOL Low level output voltage VCC = MIN, VIH = 2 V, IOL = 12 mA 0.25 0.4 0.25 0.4 V VOL Low-level output voltage CC , VIL = VIL max IH , IOL = 24 mA 0.35 0.5 V IOZH Off-state output current, VCC = MAX, VIH = 2 V, 20 20 mA IOZH , high-level voltage applied CC , VO = 2.7 V IH , 20 20 mA IOZL Off-state output current, VCC = MAX, VIH = 2 V, 20 20 mA IOZL , low-level voltage applied CC , VO = 0.4 V IH , –20 –20 mA II Input current at maximum VCC = MAX VI =7V 01 01 mA II 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 mA 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, ’LS373 24 40 24 40 mA ICC Supply current CC , Output control at 4.5 V ’LS374 27 40 27 40 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 and duration of the short circuit should not exceed one second. switching characteristics, VCC = 5 V, TA = 25°C (see Figure 1) PARAMETER FROM TO TEST CONDITIONS ’LS373 ’LS374 UNIT PARAMETER (INPUT) (OUTPUT) TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT fmax RL = 667 Ω, CL = 45 pF, See Note 3 35 50 MHz tPLH Data Any Q RL = 667 Ω, CL = 45 pF, 12 18 ns tPHL Data Any Q L , L , See Note 3 12 18 ns tPLH CorCLK Any Q RL = 667 Ω, CL = 45 pF, 20 30 15 28 ns tPHL C or CLK Any Q L , L , See Note 3 18 30 19 28 ns tPZH OC Any Q RL = 667 Ω, CL = 45 pF, 15 28 20 26 ns tPZL OC Any Q L , L , See Note 3 25 36 21 28 ns tPHZ 15 25 15 28 tPHZ OC Any Q RL 667 Ω CL 5 pF 15 25 15 28 ns tPLZ OC Any Q RL = 667 Ω, CL = 5 pF 12 20 12 20 ns tPLZ 12 20 12 20 NOTE 3: Maximum clock frequency is tested with all outputs loaded. fmax = maximum clock frequency tPLH = propagation delay time, low-to-high-level output tPHL = propagation delay time, high-to-low-level output tPZH = output enable time to high level tPZL = output enable time to low level tPHZ = output disable time from high level tPLZ = output disable time from low level |
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