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SN74BCT2245NE4 Scheda tecnica(PDF) 4 Page - Texas Instruments |
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SN74BCT2245NE4 Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 11 page SN74BCT2245 OCTAL TRANSCEIVER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS SCBS102C – FEBRUARY 1992 – REVISED MARCH 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = –18 mA –1.2 V A port VCC =4 5V IOH = –1 mA 2.5 3.4 VOH A port VCC = 4.5 V IOH = –3 mA 2.4 3.3 V VOH B port VCC =4 5V IOH = –1 mA 2.4 3.3 V B port VCC = 4.5 V IOH = –12 mA 2 3.2 A port VCC = 4.5 V, IOL = 24 mA 0.35 0.5 VOL B port VCC =4 5V IOL = 1 mA 0.5 V B port VCC = 4.5 V IOL = 12 mA 0.8 II VCC = 5.5 V, VI = 5.5 V 0.1 mA I ‡ A or B port VCC =5 5V VI =2 7V 70 µA IIH‡ Control input VCC = 5.5 V, VI = 2.7 V 20 µA IIL‡ VCC = 5.5 V, VI = 0.5 V –0.65 mA I § A port VCC =5 5V VO =0 –60 –150 mA IOS§ B port VCC = 5.5 V, VO = 0 –100 –225 mA ICCL A to B VCC =5 5V Outputs open 63 100 mA ICCL B to A VCC = 5.5 V, Outputs open 40 64 mA ICCH A to B VCC =5 5V Outputs open 37 59 mA ICCH B to A VCC = 5.5 V, Outputs open 29 46 mA ICCZ A to B VCC =5 5V Outputs open 9 15 mA ICCZ B to A VCC = 5.5 V, Outputs open 8 14 mA Ci Control input VCC = 5 V, VI = 2.5 V or 0.5 V 7 pF Ci A to B VCC =5V VO =2 5Vor0 5V 9 pF Cio B to A VCC = 5 V, VO = 2.5 V or 0.5 V 12 pF † All typical values are at VCC = 5 V, TA = 25°C. ‡ For I/O ports, the parameters IIH and IIL include the off-state output current. § Not more than one output should be tested at a time, and the duration of the test should not exceed one second. switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C MIN MAX UNIT (INPUT) (OUTPUT) MIN TYP MAX tPLH A B 1 3.3 4.9 1 5.8 ns tPLH B A 1.7 4.2 6.1 1.7 7 ns tPHL A B 2.5 5.1 6.9 2.5 7.8 ns tPHL B A 2.2 4.7 7.1 2.2 7.7 ns tPZH OE B 3.2 6.2 8.6 3.2 9.9 ns tPZH OE A 3.8 7.2 9.5 3.8 11.1 ns tPZL OE B 5.6 8.3 10.9 5.6 12.2 ns tPZL OE A 4.2 7.6 10.1 4.2 11.4 ns tPHZ OE B 2.6 5.2 7.1 2.6 8.2 ns tPHZ OE A 3.1 5.7 8 3.1 9.4 ns tPLZ OE B 3.5 6 7.9 3.5 9.2 ns tPLZ OE A 2.3 4.7 6.5 2.3 7.6 ns |
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