4.6.3 I²C Timing

The following figure illustrates the I²C client timing.

The following table provides I²C client timing parameters.

Table 4-8. I²C Timing Parameters
Parameter	Symbol	Min	Max	Units	Remarks
SCL Clock Frequency	f_SCL	0	400	kHZ	—
SCL Low Pulse Width	t_WL	1.3	—	µs	—
SCL High Pulse Width	t_WH	0.6	—	µs	—
SCL, SDA Fall Time	t_HL	—	300	ns	—
SCL, SDA Rise Time	t_LH	—	300	ns	This is dictated by external components
START Setup Time	t_SUSTA	0.6	—	µs	—
START Hold Time	t_HDSTA	0.6	—	µs	—
SDA Setup Time	t_SUDAT	100	—	ns	—
SDA Hold Time	t_HDDAT	0	—	ns	Client and Host Default Host Programming Option
SDA Hold Time	t_HDDAT	40	—	ns	Client and Host Default Host Programming Option
STOP Setup Time	t_SUSTO	0.6	—	µs	—
Bus Free Time Between STOP and START	t_BUF	1.3	—	µs	—
Glitch Pulse Reject	t_PR	0	50	ns	—

4.6.3 I2C Timing