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SN74LVCH8T245DWR Arkusz danych(PDF) 7 Page - Texas Instruments |
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SN74LVCH8T245DWR Arkusz danych(HTML) 7 Page - Texas Instruments |
7 / 33 page 7 SN74LVCH8T245 www.ti.com SCES637B – AUGUST 2005 – REVISED FEBRUARY 2016 Product Folder Links: SN74LVCH8T245 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Electrical Characteristics (continued) All typical limits apply over TA = 25°C, and all maximum and minimum limits apply over TA = –40°C to 85°C (unless otherwise noted). (1)(2) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ICCB Supply current B port VI = VCCI or GND, IO = 0 VCCA = VCCB = 1.65 V to 4.5 V 20 μA VCCA = 5 V, VCCB = 0 V –2 VCCA = 0 V, VCCB = 5 V 20 Combined supply current VI = VCCI or GND, IO = 0 VCCA = VCCB = 1.65 V to 4.5 V 30 μA ΔICCA Supply-current change DIR DIR at VCCA - 0.6 V, B port = open, A port at VCCA or GND VCCA = VCCB = 3 to 5.5 V 50 μA Ci Input capacitance control inputs VI = VCCA or GND VCCA = VCCB = 3.3 V 4 5 pF Cio Input and output capacitance A or B port VO = VCCA/B or GND VCCA = VCCB = 3.3 V 8.5 10 pF 6.6 Switching Characteristics: VCCA = 1.8 V ± 0.15 V over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (unless otherwise noted) (see Figure 3) PARAMETER FROM (INPUT) TO (OUTPUT) TEST CONDITIONS MIN MAX UNIT tPLH, tPHL A B VCCB = 1.8 V ± 0.15 V 1.7 21.9 ns VCCB = 2.5 V ± 0.2 V 1.3 9.2 VCCB = 3.3 V ± 0.3 V 1 7.4 VCCB = 5 V ± 0.5 V 0.4 7.1 tPLH, tPHL B A VCCB = 1.8 V ± 0.15 V 0.9 23.8 ns VCCB = 2.5 V ± 0.2 V 0.8 23.6 VCCB = 3.3 V ± 0.3 V 0.7 23.4 VCCB = 5 V ± 0.5 V 0.7 23.4 tPHZ, tPLZ OE A VCCB = 1.8 V ± 0.15 V 1.5 29.6 ns VCCB = 2.5 V ± 0.2 V 1.5 29.4 VCCB = 3.3 V ± 0.3 V 1.5 29.3 VCCB = 5 V ± 0.5 V 1.4 29.2 tPHZ, tPLZ OE B VCCB = 1.8 V ± 0.15 V 2.4 32.2 ns VCCB = 2.5 V ± 0.2 V 1.9 13.1 VCCB = 3.3 V ± 0.3 V 1.7 12 VCCB = 5 V ± 0.5 V 1.3 10.3 tPZH, tPZL OE A VCCB = 1.8 V ± 0.15 V 0.4 24 ns VCCB = 2.5 V ± 0.2 V 0.4 23.8 VCCB = 3.3 V ± 0.3 V 0.4 23.7 VCCB = 5 V ± 0.5 V 0.4 23.7 tPZH, tPZL OE B VCCB = 1.8 V ± 0.15 V 1.8 32 ns VCCB = 2.5 V ± 0.2 V 1.5 16 VCCB = 3.3 V ± 0.3 V 1.2 12.6 VCCB = 5 V ± 0.5 V 0.9 10.8 |
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