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SN74AS74ANE4 датащи(PDF) 4 Page - Texas Instruments |
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SN74AS74ANE4 датащи(HTML) 4 Page - Texas Instruments |
4 / 19 page SN54ALS74A, SN54AS74A, SN74ALS74A, SN74AS74A DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOPS WITH CLEAR AND PRESET SDAS143C − APRIL 1982 − REVISED AUGUST 1995 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX† UNIT PARAMETER (INPUT) (OUTPUT) SN54ALS74A SN74ALS74A UNIT MIN MAX MIN MAX fmax 25 34 MHz tPLH PRE or CLR Q or Q 3 18 3 13 ns tPHL PRE or CLR Q or Q 5 17 5 15 ns tPLH CLK Q or Q 5 23 5 16 ns tPHL CLK Q or Q 5 20 5 18 ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage, VCC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA: SN54AS74A −55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74AS74A 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range −65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. recommended operating conditions SN54AS74A SN74AS74A UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V IOH High-level output current −2 −2 mA IOL Low-level output current 20 20 mA fclock* Clock frequency 0 90 0 105 MHz PRE or CLR low 4 4 tw* Pulse duration CLK high 4 4 ns tw* Pulse duration CLK low 5.5 5.5 ns tsu* Setup time before CLK ↑ Data 4.5 4.5 ns tsu* Setup time before CLK ↑ PRE or CLR inactive 2 2 ns th* Hold time after CLK ↑ Data 0 0 ns TA Operating free-air temperature −55 125 0 70 °C * On products compliant to MIL-STD-833, Class B, this parameter is based on characterization data but is not production tested. |
Аналогичный номер детали - SN74AS74ANE4 |
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Аналогичное описание - SN74AS74ANE4 |
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