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TCA9517DSGR Datasheet(PDF) 6 Page - Texas Instruments |
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TCA9517DSGR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 18 page TCA9517 SCPS242 – DECEMBER 2012 www.ti.com I 2C INTERFACE TIMING REQUIREMENTS VCCB = 2.7 V to 5.5 V, GND = 0 V, TA = –40°C to 85°C (unless otherwise noted) (1) (2) FROM TO PARAMETER TEST CONDITIONS MIN TYP(3) MAX UNIT (INPUT) (OUTPUT) SDAB, SCLB(4) SDAA, SCLA(4) 80 141 250 (see Figure 5) (see Figure 5) tPLZ Propagation delay ns SDAA, SCLA(5) SDAB, SCLB(5) 25 74 110 (see Figure 4) (see Figure 4) VCCA ≤ 2.7 V 30 76(6) 110 (see Figure 3) SDAB, SCLB SDAA, SCLA VCCA ≥ 3 V tPZL Propagation delay 10 86 230 ns (see Figure 3) SDAA, SCLA(5) SDAB, SCLB(5) 60 107 230 (see Figure 4) (see Figure 4) VCCA ≤ 2.7 V 10 12 15 (see Figure 4) B side to A side VCCA ≥ 3 V tTLH Transition time 80% 20% 40 42 45 ns (see Figure 4) A side to B side 110 125 140 (see Figure 3) VCCA ≤ 2.7 V 1 52(6) 105 (see Figure 4) B side to A side VCCA ≥ 3 V tTHL Transition time 80% 20% 20 67 175 ns (see Figure 4) A side to B side 30 48 90 (see Figure 3) (1) Times are specified with loads of 1.35-k Ω pullup resistance and 50-pF load capacitance on the B side and 167-Ω pullup and 57-pF load capacitance on the A side. Different load resistance and capacitance alter the RC time constant, thereby changing the propagation delay and transition times. (2) Pullup voltages are VCCA on the A side and VCCB on the B side. (3) Typical values were measured with VCCA = VCCB = 3.3 V at TA = 25°C, unless otherwise noted. (4) The tPLH delay data from B to A side is measured at 0.4 V on the B side to 0.5 VCCA on the A side when VCCA is less than 2 V, and 1.5 V on the A side if VCCA is greater than 2 V. (5) The proportional delay data from A to B side is measured at 0.3 VCCA on the A side to 1.5 V on the B side. (6) Typical value measured with VCCA = 2.7 V at TA = 25°C 6 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated Product Folder Links: TCA9517 |
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