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SN74BCT640NE4 Datasheet(PDF) 4 Page - Texas Instruments |
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SN74BCT640NE4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 15 page SN54BCT640, SN74BCT640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCBS025C – SEPTEMBER 1988 – REVISED APRIL 1994 2–4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics (see Note 2) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = 25°C VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX† UNIT ′BCT640 SN54BCT640 SN74BCT640 MIN TYP MAX MIN MAX MIN MAX tPLH AorB BorA 0.5 3.6 5.6 0.5 7 0.5 6.5 ns tPHL A or B B or A 0.5 1.9 3.4 0.5 3.8 0.5 3.7 ns tPZH OE AorB 3.1 6.4 8.9 2.6 10.5 2.6 10.2 ns tPZL OE A or B 4.1 6.9 9.5 3.5 12.3 3.5 10.7 ns tPHZ OE AorB 1.9 5 7.9 1.4 12.2 1.4 10.2 ns tPLZ OE A or B 1.8 4.3 6.8 1.5 8.3 1.5 7.8 ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. NOTE 2: Load circuits and voltage waveforms are shown in Section 1. |
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