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SN74BCT657DWR 데이터시트(PDF) 6 Page - Texas Instruments |
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SN74BCT657DWR 데이터시트(HTML) 6 Page - Texas Instruments |
6 / 10 page SN74BCT657 OCTAL TRANSCEIVER WITH PARITY GENERATOR/CHECKER AND 3STATE OUTPUTS SCBS079B − NOVEMBER 1991 − REVISED APRIL 1994 2−6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Note 3) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C MIN MAX UNIT PARAMETER (INPUT) (OUTPUT) MIN TYP MAX MIN MAX UNIT tPLH A or B B or A 1.1 3.1 6 1.1 6.6 ns tPHL A or B B or A 2 5.3 8.5 2 9 ns tPLH A PARITY 3 7.4 12.7 3 15.4 ns tPHL A PARITY 4.6 8.6 14.1 4.6 15.9 ns tPLH ODD/EVEN PARITY, ERR 1.1 4.1 6.4 1.1 7.1 ns tPHL ODD/EVEN PARITY, ERR 2.6 5.5 8.3 2.6 9 ns tPLH B ERR 3.1 7.4 12.6 3.1 15.3 ns tPHL B ERR 4.4 6.5 13.3 4.4 15.5 ns tPLH PARITY ERR 3.4 7.7 10.7 3.4 13.2 ns tPHL PARITY ERR 5.5 8.8 12 5.5 13.9 ns tPZH OE A, B, PARITY, or ERR 1.8 5.1 7.7 1.8 9.1 ns tPZL OE A, B, PARITY, or ERR 3.2 6.7 14.2 3.2 16.3 ns tPHZ OE A, B, PARITY, or ERR 2.6 5.7 8 2.6 9.1 ns tPLZ OE A, B, PARITY, or ERR 2 5 7.4 2 8 ns NOTE 3: Load circuits and voltage waveforms are shown in Section 1. |
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