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SN74ALS191AD データシート(PDF) 6 Page - Texas Instruments |
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SN74ALS191AD データシート(HTML) 6 Page - Texas Instruments |
6 / 8 page SN54ALS191A, SN74ALS191A SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS SDAS210C – DECEMBER 1982 – REVISED JULY 1996 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54ALS191A SN74ALS191A UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = – 18 mA – 1.5 – 1.5 V VOH VCC = 4.5 V to 5.5 V, IOH = – 0.4 mA VCC –2 VCC –2 VOL VCC =4 5V IOL = 4 mA 0.25 0.4 0.25 0.4 V VOL VCC = 4.5 V IOL = 8 mA 0.35 0.5 II VCC = 5.5 V, VI = 7 V 0.2 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL CTEN or CLK VCC =5 5V VI =0 4V – 0.2 – 0.2 mA IIL All others VCC = 5.5 V, VI = 0.4 V – 0.2 – 0.1 mA IO‡ VCC = 5.5 V, VO = 2.25 V –20 –112 –30 –112 mA ICC VCC = 5.5 V, All inputs at 0 12 22 12 22 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. switching characteristics (see Figure 1) PARAMETER FROM (OUTPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX§ UNIT (OUTPUT) (OUTPUT) SN54ALS191A SN74ALS191A MIN MAX MIN MAX fmax 20 30 MHz tPLH LOAD Any Q 7 37 7 30 ns tPHL LOAD Any Q 8 34 8 30 ns tPLH ABCD Any Q 3 25 3 21 ns tPHL A, B, C, D Any Q 4 25 4 21 ns tPLH CLK RCO 5 24 5 20 ns tPHL CLK RCO 5 25 5 20 ns tPLH CLK Any Q 3 26 3 18 ns tPHL CLK Any Q 3 22 3 18 ns tPLH CLK MAX/MIN 8 37 8 31 ns tPHL CLK MAX/MIN 8 34 8 31 ns tPLH D/U RCO 8 45 8 37 ns tPHL D/U RCO 10 36 10 28 ns tPLH D/U MAX/MIN 8 35 8 25 ns tPHL D/U MAX/MIN 8 30 8 25 ns tPLH CTEN RCO 4 21 4 18 ns tPHL CTEN RCO 4 23 4 18 ns § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. |
同様の部品番号 - SN74ALS191AD |
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同様の説明 - SN74ALS191AD |
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