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SN74BCT29846 Datasheet(PDF) 4 Page - Texas Instruments |
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SN74BCT29846 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 5 page SN74BCT29846 8BIT BUSINTERFACE DTYPE LATCH WITH 3STATE OUTPUTS SCBS023C − MARCH 1989 − REVISED APRIL 1994 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) MIN MAX UNIT PRE low 7 tw Pulse duration CLR low 5 ns tw Pulse duration LE high 4 ns tsu Setup time before LE ↓ Data 1.5 ns tsu Setup time before LE ↓ PRE or CLR, inactive state 2 ns th Hold time, data after LE ↓ 3.5 ns switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Note 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C MIN MAX UNIT PARAMETER (INPUT) (OUTPUT) MIN TYP MAX MIN MAX UNIT tPLH D Any Q 1.5 5.7 8 1.5 9 ns tPHL D Any Q 1.5 4.5 7 1.5 8 ns tPLH LE Any Q 1.5 6 8 1.5 10 ns tPHL LE Any Q 1.5 6 8 1.5 10 ns tPLH PRE Any Q 1.5 6 11 1.5 12 ns tPHL PRE Any Q 1.5 6 11 1.5 12 ns tPLH CLR Any Q 1.5 6 11 1.5 12 ns tPHL CLR Any Q 1.5 6 11 1.5 12 ns tPZH OE Any Q 2 10 13 2 15 ns tPZL OE Any Q 2 10 13 2 15 ns tPHZ OE Any Q 2 6 8 2 10 ns tPLZ OE Any Q 2 6 8 2 10 ns NOTE 1: Load circuits and voltage waveforms are shown in Section 1. |
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