10.4.1 I²C Client Timing

The I²C Client timing diagram for the ATWINC3400-MR210xA module is shown in the following figure.

The following table provides the I²C Client timing parameters for the ATWINC3400-MR210xA module.

Table 10-5. I²C Client 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
SDA Hold Time	t_HDDAT	40	—	µs	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	—

10.4.1 I2C Client Timing