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TCA9535RTWR Datasheet(PDF) 7 Page - Texas Instruments |
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TCA9535RTWR Datasheet(HTML) 7 Page - Texas Instruments |
7 / 46 page 7 TCA9535 www.ti.com SCPS201D – AUGUST 2009 – REVISED JULY 2016 Product Folder Links: TCA9535 Submit Documentation Feedback Copyright © 2009–2016, Texas Instruments Incorporated I 2C Interface Timing Requirements (continued) over recommended operating free-air temperature range (unless otherwise noted) (see Figure 20) MIN MAX UNIT ticf I2C input fall time 20 × (VCC / 5.5 V) 300 ns tocf I2C output fall time 10-pF to 400-pF bus 20 × (VCC / 5.5 V) 300 ns tbuf I2C bus free time between stop and start 1.3 µs tsts I2C start or repeated start condition setup 0.6 µs tsth I2C start or repeated start condition hold 0.6 µs tsps I2C stop condition setup 0.6 µs tvd(data) Valid data time SCL low to SDA output valid 0.9 µs tvd(ack) Valid data time of ACK condition ACK signal from SCL low to SDA (out) low 0.9 µs Cb I2C bus capacitive load 400 pF 6.7 Switching Characteristics over recommended operating free-air temperature range, CL ≤ 100 pF (unless otherwise noted) (see Figure 20 and Figure 21) PARAMETER FROM (INPUT) TO (OUTPUT) MIN MAX UNIT tiv Interrupt valid time P port INT 4 μs tir Interrupt reset delay time SCL INT 4 μs tpv Output data valid; For VCC = 2.3 V–5.5 V SCL P port 200 ns Output data valid; For VCC = 1.65 V–2.3 V 300 ns tps Input data setup time P port SCL 150 ns tph Input data hold time P port SCL 1 μs |
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