31.24 SERCOM Inter-Integrated Circuit (SERCOM I²C) Electrical Specifications

Figure 31-8. SERCOM I²C Start/Stop Bits Host Mode AC Timing Diagrams

Figure 31-9. SERCOM I²C Bus Data Host Mode AC Timing Diagrams

Table 31-33. SERCOM I²C Host Mode AC Electrical Specifications
AC CHARACTERISTICS				Standard Operating Conditions: VDDIO = AVDD = VDD 1.62V to 3.63V (unless otherwise stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial
Param. No.	Symbol	Characteristics ⁽¹⁾		Min.	Max.	Units	Conditions
I2CM_1	TL0:SCL	Host Clock Low Time	100 kHz mode	4.7	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_1	TL0:SCL	Host Clock Low Time	400 kHz mode	1.3	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_3	THI:SCL	Host Clock High Time	100 kHz mode	4	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_3	THI:SCL	Host Clock High Time	400 kHz mode	0.6	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_5	TF:SCL	SDAx and SCLx Fall Time	100 kHz mode	—	300	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_5	TF:SCL	SDAx and SCLx Fall Time	400 kHz mode	—	300	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_7	TR:SCL	SDAx and SCLx Rise Time	100 kHz mode	—	1000	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_7	TR:SCL	SDAx and SCLx Rise Time	400 kHz mode	—	300	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_9	TSU:DAT	Data Setup Time	100 kHz mode	250	—	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_9	TSU:DAT	Data Setup Time	400 kHz mode	100	—	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_11	THD:DAT	Data Hold Time⁽¹⁾	100 kHz mode	300	—	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_11	THD:DAT	Data Hold Time⁽¹⁾	400 kHz mode	300	—	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_13	TSU:STA	Start Condition Setup Time	100 kHz mode	4.7	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_13	TSU:STA	Start Condition Setup Time	400 kHz mode	0.6	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_15	THD:STA	Start Condition Hold Time	100 kHz mode	4	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_15	THD:STA	Start Condition Hold Time	400 kHz mode	0.6	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_17	TSU:ST0	Stop Condition Setup Time	100 kHz mode	4	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_17	TSU:ST0	Stop Condition Setup Time	400 kHz mode	0.6	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_21	TAA:SCL	Output Valid from Clock	100 kHz mode	—	3.45	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_21	TAA:SCL	Output Valid from Clock	400 kHz mode	—	0.9	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_23	TBF:SDA	Bus Free Time⁽²⁾	100 kHz mode	4.7	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CM_23	TBF:SDA	Bus Free Time⁽²⁾	400 kHz mode	1.3	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
Note: Longest delay between data hold timing based on the SDAHOLD bitfield of the CTRLA register from the SERCOM module and timing based on 4 period of GCLK_SERCOM for 100 kHz/400 kHz mode. The amount of time the bus must be free before a new transmission can start (STOP condition to START condition).

Figure 31-10. SERCOM I²C Start/Stop Bits Client Mode AC Timing Diagrams

Figure 31-11. SERCOM I²C Bus Data Client Mode AC Timing Diagrams

Table 31-34. SERCOM I²C Client Mode AC Electrical Specifications
AC CHARACTERISTICS				Standard Operating Conditions: VDDIO = AVDD = VDD 1.62V to 3.63V (unless otherwise stated) Operating temperature : -40°C ≤ TA ≤ +85°C for Industrial
Param. No.	Symbol	Characteristics ⁽¹⁾		Min.	Max.	Units	Conditions
I2CS_1	TL0:SCL	Client Clock Low Time	100 kHz mode	4.7	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_1	TL0:SCL	Client Clock Low Time	400 kHz mode	1.3	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_3	THI:SCL	Client Clock High Time	100 kHz mode	4	—	µs	VDDIO=3.3v, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_3	THI:SCL	Client Clock High Time	400 kHz mode	0.6	—	µs	VDDIO=3.3v, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_5	TF:SCL	SDAx and SCLx Fall Time	100 kHz mode	—	300	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_5	TF:SCL	SDAx and SCLx Fall Time	400 kHz mode	—	300	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_7	TR:SCL	SDAx and SCLx Rise Time	100 kHz mode	—	1000	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_7	TR:SCL	SDAx and SCLx Rise Time	400 kHz mode	—	300	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_9	TSU:DAT	Data Setup Time	100 kHz mode	250	—	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_9	TSU:DAT	Data Setup Time	400 kHz mode	100	—	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_11	THD:DAT	Data Hold Time⁽¹⁾	100 kHz mode	300	—	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_11	THD:DAT	Data Hold Time⁽¹⁾	400 kHz mode	300	—	ns	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_13	TSU:STA	Start Condition Setup Time	100 kHz mode	4.7	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_13	TSU:STA	Start Condition Setup Time	400 kHz mode	0.6	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_15	THD:STA	Start Condition Hold Time	100 kHz mode	4	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_15	THD:STA	Start Condition Hold Time	400 kHz mode	0.6	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_17	TSU:ST0	Stop Condition Setup Time	100 kHz mode	4	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_17	TSU:ST0	Stop Condition Setup Time	400 kHz mode	0.6	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_21	TAA:SCL	Output Valid from Clock	100 kHz mode	—	3.45	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_21	TAA:SCL	Output Valid from Clock	400 kHz mode	—	0.9	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_23	TBF:SDA	Bus Free Time⁽²⁾	100 kHz mode	4.7	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
I2CS_23	TBF:SDA	Bus Free Time⁽²⁾	400 kHz mode	1.3	—	µs	VDDIO = 3.3V, IPULL-UP = 3 mA, CLOAD = 400 pF
Note: Longest delay between data hold timing based on the SDAHOLD bit field of the CTRLA register from the SERCOM module and timing based on 4 period of GCLK_SERCOM for 100 kHz/400 kHz mode. The amount of time the bus must be free before a new transmission can start (STOP condition to START condition).

31.24 SERCOM Inter-Integrated Circuit (SERCOM I2C) Electrical Specifications

31.24 SERCOM Inter-Integrated Circuit (SERCOM I²C) Electrical Specifications