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

Figure 39-8. I2C Start/Stop Bits Host Mode AC Timing Diagrams
Figure 39-9. I2C Bus Data Host Mode AC Timing Diagrams
Table 39-30. SERCOM I2C Host Mode AC Electrical Specifications
AC CHARACTERISTICSStandard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No.SymbolCharacteristics(1)Min.Max.UnitsConditions
I2CM_1TL0:SCLHost Clock Low Time100 kHz mode4.7—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode1.3—µs
1 MHz mode0.5—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_3THI:SCLHost Clock High Time100 kHz mode4—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode0.6—µs
1 MHz mode0.26—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode60—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_5TF:SCLSDAx and SCLx Fall Time100 kHz mode—300nsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode—300ns
1 MHz mode—120nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode—40nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_7TR:SCLSDAx and SCLx Rise Time100 kHz mode—1000nsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode—300ns
1 MHz mode—120nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode—40nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_9TSU:DATData Setup Time100 kHz mode250—nsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode100—ns
1 MHz mode50—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode10—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_11THD:DATData Hold Time(1)100 kHz mode300—nsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode300—ns
1 MHz mode300—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode5—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_13TSU:STAStart Condition Setup Time100 kHz mode4.7—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode0.6—µs
1 MHz mode0.26—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_15THD:STAStart Condition Hold Time100 kHz mode4—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode0.6—µs
1 MHz mode0.26—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_17TSU:ST0Stop Condition Setup Time100 kHz mode4—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode0.6—µs
1 MHz mode0.26—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_21TAA:SCL0utput Valid from Clock100 kHz mode—3.45µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode—0.9µs
1 MHz mode—0.45µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode—100nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CM_23TBF:SDABus Free Time (2)100 kHz mode4.7—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode1.3—µs
1 MHz mode0.5—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

Note:
  1. Longest delay between data hold timing based on the SDAHOLD bit field of the CTRLA register from SERCOM module and timing based on 4 period of GCLK_SERCOM for 100 kHz/400 kHz/1 MHz mode.
  2. The amount of time the bus must be free before a new transmission can start (STOP condition to START condition).
Figure 39-10. I2C Start/Stop Bits Client Mode AC Timing Diagrams
Figure 39-11. I2C Bus Data Client Mode AC Timing Diagrams
Table 39-31. SERCOM I2C Client Mode AC Electrical Specifications
AC CHARACTERISTICSStandard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No.SymbolCharacteristics(1)Min.Max.UnitsConditions
I2CS_1TL0:SCLClient Clock Low Time100 kHz mode4.7—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode1.3—µs
1 MHz mode0.5—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_3THI:SCLClient Clock High Time100 kHz mode4—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode0.6—µs
1 MHz mode0.26—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode60—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_5TF:SCLSDAx and SCLx Fall Time100 kHz mode—300nsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode—300ns
1 MHz mode—120nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode—40nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_7TR:SCLSDAx and SCLx Rise Time100 kHz mode—1000nsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode—300ns
1 MHz mode—120nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode—40nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_9TSU:DATData Setup Time100 kHz mode250—nsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode100—ns
1 MHz mode50—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode10—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_11THD:DATData Hold Time (1)100 kHz mode300—nsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode300—ns
1 MHz mode300—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode5—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_13TSU:STAStart Condition Setup Time100 kHz mode4.7—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode0.6—µs
1 MHz mode0.26—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_15THD:STAStart Condition Hold Time100 kHz mode4—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode0.6—µs
1 MHz mode0.26—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_17TSU:ST0Stop Condition Setup Time100 kHz mode4—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode0.6—µs
1 MHz mode0.26—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_21TAA:SCL0utput Valid from Clock100 kHz mode—3.45µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode—0.9µs
1 MHz mode—0.45µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode—100nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

I2CS_23TBF:SDABus Free Time (1)100 kHz mode4.7—µsVDDIO = 5.0V,

IPULL-UP = 3 mA,

CLOAD = 400 pF

400 kHz mode1.3—µs
1 MHz mode0.5—µsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 550 pF

3.4 MHz mode160—nsVDDIO = 5.0V,

IPULL-UP = 20 mA,

CLOAD = 100 pF

Note:
  1. Longest delay between data hold timing based on the SDAHOLD bit field of the CTRLA register from SERCOM module and timing based on 4 period of GCLK_SERCOM for 100 kHz/400 kHz/1 MHz mode.
  2. The amount of time the bus must be free before a new transmission can start (STOP condition to START condition).