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SN74ALS842NT Arkusz danych(PDF) 5 Page - Texas Instruments |
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SN74ALS842NT Arkusz danych(HTML) 5 Page - Texas Instruments |
5 / 9 page SN74ALS841, SN74AS841A, SN74ALS842 10-BIT BUS-INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS SDAS059C – DECEMBER 1983 – REVISED JANUARY 1995 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX† UNIT SN74ALS841 MIN MAX tPLH D Q 2 13 ns tPHL D Q 2 13 ns tPLH LE Q 7 21 ns tPHL LE Q 8 26 ns tPZH OE Q 2 12 ns tPZL OE Q 2 12 ns tPHZ OE Q 2 10 ns tPLZ OE Q 2 12 ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX† UNIT SN74ALS842 MIN MAX tPLH D Q 4 18 ns tPHL D Q 3 13 ns tPLH LE Q 8 27 ns tPHL LE Q 6 20 ns tPZH OE Q 2 12 ns tPZL OE Q 2 12 ns tPHZ OE Q 1 10 ns tPLZ OE Q 2 12 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage applied to a disabled 3-state output 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA: SN74AS841A 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. |
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