Datenblatt-Suchmaschine für elektronische Bauteile |
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SN74ALS29821NT Datenblatt(PDF) 3 Page - Texas Instruments |
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SN74ALS29821NT Datenblatt(HTML) 3 Page - Texas Instruments |
3 / 6 page SN54ALS29821, SN74ALS29821 10-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SDAS145B – JANUARY 1986 – REVISED JANUARY 1995 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions SN54ALS29821 SN74ALS29821 UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 4.75 5 5.25 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V IOH High-level output current –24 –24 mA IOL Low-level output current 48 48 mA tw Pulse duration, CLK high or low 7 7 ns tsu Setup time, data before CLK ↑ 4 4 ns th Hold time, data after CLK ↑ 2 2 ns 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 SN54ALS29821 SN74ALS29821 UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.75 V, II = – 18 mA – 1.2 – 1.2 V VOH VCC = 4 75 V IOH = – 15 mA 2.4 3.3 2.4 3.3 V VOH VCC = 4.75 V IOH = – 24 mA 2 3.1 2 3.1 V VOL VCC = 4.75 V, IOL = 48 mA 0.35 0.5 0.35 0.5 V IOZH VCC = 5.25 V, VO = 2.4 V 50 20 µA IOZL VCC = 5.25 V, VO = 0.4 V –50 –20 µA II VCC = 5.25 V, VI = 5.5 V 0.1 0.1 mA IIH VCC = 5.25 V, VI = 2.7 V 20 20 µA IIL VCC = 5.25 V, VI = 0.4 V – 0.5 – 0.2 mA IOS‡ VCC = 5.25 V, VO = 0 –75 – 250 –75 – 250 mA ICC VCC = 5.25 V, Outputs open 80 115 80 115 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. |
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