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TCAL9539RTWR Datasheet(PDF) 7 Page - Texas Instruments |
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TCAL9539RTWR Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 42 page  6.7 I2C Bus Timing Requirements (continued) over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT ticf I2C input fall time 300 ns tocf I2C output fall time 10-pF to 400-pF bus 300 ns tbuf I2C bus free time between stop and start 4.7 µs tsts I2C start or repeated start condition setup 4.7 µs tsth I2C start or repeated start condition hold 4 µs tsps I2C stop condition setup 4 µs tvd(data) Valid data time SCL low to SDA output valid 3.45 µs tvd(ack) Valid data time of ACK condition ACK signal from SCL low to SDA (out) low 3.45 µs Cb I2C bus capacitive load 400 pF I2C Bus - Fast Mode fscl I2C clock frequency 0 400 kHz tsch I2C clock high time 0.6 µs tscl I2C clock low time 1.3 µs tsp I2C spike time 50 ns tsds I2C serial-data setup time 100 ns tsdh I2C serial-data hold time 0 ns ticr I2C input rise time 20 300 ns 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 I2C Bus - Fast Mode Plus fscl I2C clock frequency 0 1000 kHz tsch I2C clock high time 0.26 µs tscl I2C clock low time 0.5 µs tsp I2C spike time 50 ns tsds I2C serial-data setup time 50 ns tsdh I2C serial-data hold time 0 ns ticr I2C input rise time 120 ns ticf I2C input fall time 20 × (VCC / 5.5 V) 120 ns tocf I2C output fall time 10-pF to 550-pF bus 20 × (VCC / 5.5 V) 120 ns tbuf I2C bus free time between stop and start 0.5 µs tsts I2C start or repeated start condition setup 0.26 µs tsth I2C start or repeated start condition hold 0.26 µs tsps I2C stop condition setup 0.26 µs tvd(data) Valid data time SCL low to SDA output valid 0.45 µs www.ti.com TCAL9539 SCPS241 – JULY 2022 Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback 7 Product Folder Links: TCAL9539 |
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