I2C Bus Start/Stop Bits Requirements

Table 1.
Standard Operating Conditions (unless otherwise stated)
Param. No. Sym. Characteristic Min. Typ. † Max. Units Conditions
SP90* TSU:STA

Start condition

Setup time

100 kHz mode 4700 ns Only relevant for Repeated Start condition
400 kHz mode 600
1 MHz mode 260
SP91* THD:STA

Start condition

Hold time

100 kHz mode 4000 ns After this period, the first clock pulse is generated
400 kHz mode 600
1 MHz mode 260
SP92* TSU:STO

Stop condition

Setup time

100 kHz mode 4000 ns  
400 kHz mode 600
1 MHz mode 260
SP93* THD:STO

Stop condition

Hold time

100 kHz mode 4700 ns  
400 kHz mode 1300
1 MHz mode 500

* These parameters are characterized but not tested.

Figure 1. I2C Bus Start/Stop Bits Timing
Note: Refer to the Load Conditions figure for more details.