46.23 SERCOM I2C Electrical Specifications

Figure 46-11. SERCOM I2C Start/Stop Bits Host Mode Timing Diagrams
Figure 46-12. SERCOM I2C Bus Data Host Mode Timing Diagrams
Table 46-30. SERCOM I2C Host Mode Electrical Specifications
AC CHARACTERISTICS Standard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial
Param. No. Symbol Characteristics Min. Max. Units Conditions
I2CM_1 TL0:SCL Host Clock Low Time 100 kHz mode 4.7 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 1.3 — µs
1 MHz mode 0.5 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_3 THI:SCL Host Clock High Time 100 kHz mode 4 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 0.6 — µs
1 MHz mode 0.26 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 60 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_5 TF:SCL SDAx and SCLx Fall Time 100 kHz mode — 300 ns VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode — 300 ns
1 MHz mode — 120 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode — 40 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_7 TR:SCL SDAx and SCLx Rise Time 100 kHz mode — 1000 ns VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode — 300 ns
1 MHz mode — 120 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode — 40 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_9 TSU:DAT Data Setup Time 100 kHz mode 250 — ns VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 100 — ns
1 MHz mode 50 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 10 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_11 THD:DAT (1) Data Hold Time 100 kHz mode 300 — ns VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 300 — ns
1 MHz mode 300 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 5 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_13 TSU:STA Start Condition Setup Time 100 kHz mode 4.7 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 0.6 — µs
1 MHz mode 0.26 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_15 THD:STA Start Condition Hold Time 100 kHz mode 4 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 0.6 — µs
1 MHz mode 0.26 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_17 TSU:STO Stop Condition Setup Time 100 kHz mode 4 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 0.6 — µs
1 MHz mode 0.26 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_21 TAA:SCL Output Valid from Clock 100 kHz mode — 3.45 µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode — 0.9 µs
1 MHz mode — 0.45 µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode — 100 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CM_23 TBF:SDA (2) Bus Free Time 100 kHz mode 4.7 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 1.3 — µs
1 MHz mode 0.5 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
Note:
  1. Longest delay between data hold timing based on bitfield SDAHOLD of register CTRLA from SERCOM Module, and timing based on four periods of GCLK_SERCOM for 100kHz/400kHz/1MHz mode.
  2. The amount of time the bus must be free before a new transmission can start (STOP condition to START condition).
Figure 46-13. SERCOM I2C Start/Stop Bits Client Mode Timing Diagram
Figure 46-14. SERCOM I2C Bus Data Client Mode Timing Diagrams
Table 46-31. SERCOM I2C Client Mode Electrical Specifications
AC CHARACTERISTICS Standard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial
Param. No. Symbol Characteristics Min. Max. Units Conditions
I2CS_1 TL0:SCL Client Clock Low Time 100 kHz mode 4.7 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 1.3 — µs
1 MHz mode 0.5 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_3 THI:SCL Client Clock High Time 100 kHz mode 4 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 0.6 — µs
1 MHz mode 0.26 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 60 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_5 TF:SCL SDAx and SCLx Fall Time 100 kHz mode — 300 ns VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode — 300 ns
1 MHz mode — 120 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode — 40 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_7 TR:SCL SDAx and SCLx Rise Time 100 kHz mode — 1000 ns VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode — 300 ns
1 MHz mode — 120 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode — 40 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_9 TSU:DAT Data Setup Time 100 kHz mode 250 — ns VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 100 — ns
1 MHz mode 50 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 10 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_11 THD:DAT (1) Data Hold Time 100 kHz mode 300 — ns VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 300 — ns
1 MHz mode 300 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 5 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_13 TSU:STA Start Condition Setup Time 100 kHz mode 4.7 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 0.6 — µs
1 MHz mode 0.26 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_15 THD:STA Start Condition Hold Time 100 kHz mode 4 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 0.6 — µs
1 MHz mode 0.26 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_17 TSU:STO Stop Condition Setup Time 100 kHz mode 4 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 0.6 — µs
1 MHz mode 0.26 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_21 TAA:SCL Output Valid from Clock 100 kHz mode — 3.45 µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode — 0.9 µs
1 MHz mode — 0.45 µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode — 100 ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
I2CS_23 TBF:SDA (2) Bus Free Time 100 kHz mode 4.7 — µs VDDIO = 5.0V, IPULL-UP = 3 mA, CLOAD = 400 pF
400 kHz mode 1.3 — µs
1 MHz mode 0.5 — µs VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 550 pF
3.4 MHz mode 160 — ns VDDIO = 5.0V, IPULL-UP = 20 mA, CLOAD = 100 pF
Note:
  1. Longest delay between data hold timing based on bitfield SDAHOLD of register CTRLA from SERCOM Module, and timing based on four periods of GCLK_SERCOM for 100kHz/400kHz/1MHz mode.
  2. The amount of time the bus must be free before a new transmission can start (STOP condition to START condition).