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74LVCH8T245DBQRG4 Datasheet(PDF) 6 Page - Texas Instruments |
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74LVCH8T245DBQRG4 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 22 page www.ti.com Switching Characteristics Switching Characteristics SN74LVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007 Electrical Characteristics (continued) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCCA VCCB MIN TYP MAX MIN MAX UNIT DIR at VCCA – 0.6 V, ∆I CCA DIR B port = open, 3 V to 5.5 V 3 V to 5.5 V 50 µA A port at VCCA or GND Control Ci VI = VCCA or GND 3.3 V 3.3 V 4 5 pF inputs A or B 8.5 10 Cio VO = VCCA/B or GND 3.3 V 3.3 V pF port over recommended operating free-air temperature range, V CCA = 1.8 V ± 0.15 V (unless otherwise noted) (see Figure 1) VCCB = 1.8 V VCCB = 2.5 V VCCB = 3.3 V VCCB = 5 V FROM TO ± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V PARAMETER UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX MIN MAX MIN MAX tPLH A B 1.7 21.9 1.3 9.2 1 7.4 0.4 7.1 ns tPHL tPLH B A 0.9 23.8 0.8 23.6 0.7 23.4 0.7 23.4 ns tPHL tPHZ OE A 1.5 29.6 1.5 29.4 1.5 29.3 1.4 29.2 ns tPLZ tPHZ OE B 2.4 32.2 1.9 13.1 1.7 12 1.3 10.3 ns tPLZ tPZH OE A 0.4 24 0.4 23.8 0.4 23.7 0.4 23.7 ns tPZL tPZH OE B 1.8 32 1.5 16 1.2 12.6 0.9 10.8 ns tPZL over recommended operating free-air temperature range, V CCA = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1) VCCB = 1.8 V VCCB = 2.5 V VCCB = 3.3 V VCCB = 5 V FROM TO ± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V PARAMETER UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX MIN MAX MIN MAX tPLH A B 1.5 21.4 1.2 9 0.8 6.2 0.6 4.8 ns tPHL tPLH B A 1.2 9.3 1 9.1 1 8.9 0.9 8.8 ns tPHL tPHZ OE A 1.4 9 1.4 9 1.4 9 1.4 9 ns tPLZ tPHZ OE B 2.3 29.6 1.8 11 1.7 9.3 0.9 6.9 ns tPLZ tPZH OE A 1 10.9 1 10.9 1 10.9 1 10.9 ns tPZL tPZH OE B 1.7 28.2 1.5 12.9 1.2 9.4 1 6.9 ns tPZL 6 Submit Documentation Feedback |
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