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TCA6507PWG4 Fiches technique(PDF) 7 Page - Texas Instruments |
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TCA6507PWG4 Fiches technique(HTML) 7 Page - Texas Instruments |
7 / 45 page TCA6507 www.ti.com SCPS164C – MAY 2007 – REVISED JANUARY 2016 6.6 I 2C Interface Timing Requirements over recommended operating free-air temperature range (unless otherwise noted) (see Figure 8) STANDARD MODE FAST MODE I2C BUS I2C BUS UNIT MIN MAX MIN MAX fscl I2C clock frequency 0 100 0 400 kHz tsch I2C clock high time 4 0.6 μs tscl I2C clock low time 4.7 1.3 μs tsp I2C spike time 50 50 ns tsds I2C serial-data setup time 250 100 ns tsdh I2C serial-data hold time 0 0 ns ticr I2C input rise time 1000 20 + 0.1Cb (1) 300 ns ticf I2C input fall time 300 20 + 0.1Cb (1) 300 ns tocf I2C output fall time 10-pF to 400-pF bus 300 20 + 0.1Cb (1) 250 ns tbuf I2C bus free time between STOP and START conditions 4.7 1.3 μs tsts I2C START or repeated START condition setup 4.7 0.6 μs tsth I2C START or repeated START condition hold 4 0.6 μs tsps I2C STOP condition setup 4 0.6 μs tvd(data) Valid-data time SCL low to SDA output valid 1 1 μs ACK signal from SCL low to tvd(ack) Valid-data time of ACK condition 1 1 μs SDA (out) low Cb I2C bus capacitive load 0 400 0 400 pF (1) Cb = total capacitance of one bus line in pF. 6.7 Oscillator Timing Requirements over recommended operating free-air temperature range (unless otherwise noted) STANDARD FAST MODE MODE I2C BUS UNIT I2C BUS MIN MAX MIN MAX Oscillator start-up time from power-down or shutdown mode to fully on at tOSC 5 5 ms 32 kHz 6.8 Switching Characteristics over recommended operating free-air temperature range, CL ≤ 100 pF (unless otherwise noted) STANDARD MODE FAST MODE FROM TO I2C BUS I2C BUS PARAMETER UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX Output data valid tpv SCL P port 400 400 ns (in general-purpose output mode) tps Shutdown data valid EN (low) P port (high) 60 60 μs tw EN pulse duration 60 60 μs Copyright © 2007–2016, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TCA6507 |
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