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SN74FB2040 Scheda tecnica(PDF) 4 Page - Texas Instruments |
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SN74FB2040 Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 9 page SN74FB2040 8-BIT TTL/BTL TRANSCEIVER SCBS173N – NOVEMBER 1991 – REVISED MARCH 2002 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 B port VCC = 4.5 V, II = –18 mA –1.2 V VIK Except B port VCC = 4.5 V, II = –40 mA –0.5 V VOH AO port VCC = 4.5 V, IOH = –3 mA 2.5 3.3 V AO port VCC = 4.5 V, IOL = 24 mA 0.35 0.5 VOL B t VCC =4 5V IOL = 80 mA 0.75 1.1 V B port VCC = 4.5 V IOL = 100 mA 1.15 II Except B port VCC = 5.5 V, VI = 5.5 V 50 µA IIH‡ Except B port VCC = 5.5 V, VI = 2.7 V 50 µA I ‡ Except B port VCC = 5.5 V, VI = 0.5 V –50 A IIL‡ B port VCC = 5.5 V, VI = 0.75 V –100 µA IOH B port VCC = 0 to 5.5 V, VO = 2.1 V 100 µA IOZH AO port VCC = 5.5 V, VO = 2.7 V 50 µA IOZL AO port VCC = 5.5 V, VO = 0.5 V – 50 µA IOZPU A port VCC = 0 to 2.1 V, VO = 0.5 V to 2.7 V 50 µA IOZPD A port VCC = 2.1 V to 0, VO = 0.5 V to 2.7 V – 50 µA IOS§ AO port VCC = 5.5 V, VO = 0 –30 –180 mA † 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 shorted at a time, and the duration of the short circuit should not exceed one second. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) (continued) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT ICC AI port to B port VCC =5 5V IO =0 40 mA ICC B port to AO port VCC = 5.5 V, IO = 0 70 mA Ci AI port VI =VCC or GND 3.5 pF Ci Control inputs VI = VCC or GND 3 pF Co AO port VO = VCC or GND 6 pF C B t IEEE Std 1194 1 1991 VCC = 0 to 4.5 V 5 pF Cio B port per IEEE Std 1194.1-1991 VCC = 4.5 V to 5.5 V 5 pF † All typical values are at VCC = 5 V, TA = 25°C. live-insertion specifications over recommended operating free-air temperature range PARAMETER TEST CONDITIONS MIN MAX UNIT ICC (BIAS VCC) VCC = 0 to 4.5 V, VB = 0 to 2 V, VI (BIAS VCC) = 4.5 V to 5.5 V 450 µA ICC (BIAS VCC) VCC = 4.5 to 5.5 V, VB = 0 to 2 V, VI (BIAS VCC) = 4.5 V to 5.5 V 10 µA VO B port VCC = 0, VI (BIAS VCC) = 5 V 1.62 2.1 V VCC = 0, VB = 1 V, VI (BIAS VCC) = 4.5 V to 5.5 V –1 IO B port VCC = 0 to 5.5 V, OEB = 0 to 0.8 V 100 µA VCC = 0 to 2.2 V, OEB = 0 to 5 V 100 |
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