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BQ32000 Datasheet(PDF) 8 Page - Texas Instruments |
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BQ32000 Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 20 page  0.7V CC 0.3V CC 0.7V CC 0.3V CC 0.7V CC 0.3V CC 0.7V CC 0.3V CC SDA SCL StartCondition SDA SCL StartCondition StopCondition 8 9 t sps t icf t icr t sdh t vd t vd t buf D7/A t icf t icr t sds t sds t sth t sch t scl 1/f scl 1 2 3 4 bq32000 SLUS900B – DECEMBER 2008 – REVISED JUNE 2009................................................................................................................................................... www.ti.com Figure 4. I2C Timing Diagram Table 2. I2C Timing STANDARD MODE FAST MODE PARAMETER UNIT MIN TYP MAX MIN TYP 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 0 50 0 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 300 20 + 0.1Cb (1) 300 µs tbuf I2C bus free time 4.7 1.3 µs tsts I2C Start setup time 4.7 0.6 µs tsth I2C Start hold time 4 0.6 µs tsps I2C Stop setup time 4 0.6 µs tvd (data) Valid data time (SCL low to SDA valid) 1 1 µs Valid data time of ACK tvd (ack) 1 1 µs (ACK signal from SCL low to SDA low) (1) Cb = total capacitance of one bus line in pF 8 Submit Documentation Feedback Copyright © 2008–2009, Texas Instruments Incorporated Product Folder Link(s): bq32000 |
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