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PCA9517DR Datasheet(PDF) 6 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
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PCA9517DR Datasheet(HTML) 6 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
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6 / 17 page  www.ti.com I 2C Interface Timing Requirements PCA9517 LEVEL-TRANSLATING I2C BUS REPEATER SCPS157A – DECEMBER 2007 – REVISED FEBRUARY 2008 VCCB = 2.7 V to 5.5 V, GND = 0 V, TA = –40°C to 85°C (unless otherwise noted) FROM TO PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT (INPUT) (OUTPUT) SDAB, SCLB(2) SDAA, SCLA(2) 100 169 255 (see Figure 4) (see Figure 4) tPLZ Propagation delay ns SDAA, SCLA(3) SDAB, SCLB(3) 25 67 110 (see Figure 3) (see Figure 3) VCCA ≤ 2.7 V 15 68(4) 110 (see Figure 2) 2.7 V ≤ VCCA ≤ 3 V SDAB, SCLB SDAA, SCLA 20 79 130 (see Figure 2) tPZL Propagation delay ns VCCA ≥ 3 V 10 103(5) 300 (see Figure 2) SDAA, SCLA(3) SDAB, SCLB(3) 45 118 230 (see Figure 3) (see Figure 3) B side to A side 1 6 30 (see Figure 3) tTLH Transition time 20% 80% ns A side to B side 20 31 170 (see Figure 2) VCCA ≤ 2.7 V 1 3(4) 105 (see Figure 3) 2.7 V ≤ VCCA ≤ 3 V B side to A side 1 6 120 (see Figure 2) tTHL Transition time 80% 20% ns VCCA ≥ 3 V 1 25(5) 175 (see Figure 3) A side to B side 1 12 90 (see Figure 2) (1) Typical values were measured with VCCA = VCCB = 2.7 V at TA = 25°C, unless otherwise noted. (2) The tPLH delay data from B to A side is measured at 0.5 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. (3) 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. (4) Typical value measured with VCCA = 0.9 V at TA = 25°C (5) Typical value measured with VCCA = 5.5 V at TA = 25°C 6 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCA9517 |
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