Datenblatt-Suchmaschine für elektronische Bauteile |
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SN74148 Datenblatt(PDF) 8 Page - Texas Instruments |
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SN74148 Datenblatt(HTML) 8 Page - Texas Instruments |
8 / 22 page SN54147, SN54148, SN54LS147, SN54LS148 SN74147, SN74148 (TIM9907), SN74LS147, SN74LS148 10LINE TO 4LINE AND 8LINE TO 3LINE PRIORITY ENCODERS SDLS053B − OCTOBER 1976 − REVISED MAY 2004 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS† ’147 ’148 UNIT PARAMETER TEST CONDITIONS† MIN TYP‡ MAX MIN TYP‡ MAX UNIT VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V VIK Input clamp voltage VCC = MIN, II = −12 mA −1.5 −1.5 V VOH High-level output voltage VCC = MIN, VIL = 0.8 V, VIH = 2 V, IOH = −800 µA 2.4 3.3 2.4 3.3 V VOL Low-level output voltage VCC = MIN, VIL = 0.8 V, VIH = 2 V, IOL = 16 mA 0.2 0.4 0.2 0.4 V II Input current at maximum input voltage VCC = MIN, VI = 5.5 V 1 1 mA IIH High-level input 0 input VCC = MAX, VI = 2.4 V 40 A IIH High-level input current Any input except 0 VCC = MAX, VI = 2.4 V 40 80 µA IIL Low-level input 0 input VCC = MAX, VI = 0.4 V −1.6 mA IIL Low-level input current Any input except 0 VCC = MAX, VI = 0.4 V −1.6 −3.2 mA IOS Short-circuit output current§ VCC = MAX −35 −85 −35 −85 mA ICC Supply current VCC = MAX Condition 1 50 70 40 60 mA ICC Supply current VCC = MAX (See Note 5) Condition 2 42 62 35 55 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 5: For ’147, ICC (Condition 1) is measured with input 7 grounded, other inputs and outputs open; ICC (Condition 2) is measured with all inputs and outputs open. For ’148, ICC (Condition 1) is measured with inputs 7 and EI grounded, other inputs and outputs open; ICC (Condition 2) is measured with all inputs and outputs open. SN54147, SN74147 switching characteristics, VCC = 5 V, TA = 255C (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) WAVEFORM TEST CONDITIONS MIN TYP MAX UNIT tPLH Any Any In-phase output 9 14 ns tPHL Any Any In-phase output CL = 15 pF, 7 11 ns tPLH Any Any Out-of-phase output CL = 15 pF, RL = 400 Ω 13 19 ns tPHL Any Any Out-of-phase output RL = 400 12 19 ns |
Ähnliche Teilenummer - SN74148 |
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Ähnliche Beschreibung - SN74148 |
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