SI7013 Datasheet, PDF (6/43 Pages) Silicon Laboratories – I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

Si7013
Table 3. I²C Interface Specifications¹
1.9  V_DD  3.6 V; T_A = –40 to +85 °C (G grade) or –40 to +125 °C (I/Y grade) unless otherwise noted.
Parameter
Symbol
Test Condition
Min
Typ Max Unit
SDA Valid Time
t_VD;DAT From SCL low to data valid
—
SDA Acknowledge Valid Time t_VD;ACK From SCL low to data valid
—
Suppressed Pulse Width³
t_SPS
50
—
0.9
µs
—
0.9
µs
—
—
ns
Notes:
1. All values are referenced to V_IL and/or V_IH.
2. Depending on the conversion command, the Si7013 may hold the master during the conversion (clock stretch). At
above 300 kHz SCL, the Si7013 may hold the master briefly for user register and device ID transactions. At the highest
I²C speed of 400 kHz the stretching will be <10 µs.
3. Pulses up to and including 50ns will be suppressed.
SCL
tBUF
tSTH
1/fSCL
tSKH
tSP
tDS
tDH
tSKL
tSPS
SDA
Start Bit
D7
D6
D5
D0
R/W
ACK
Stop Bit
tSTS
t_VD : _ACK
Figure 1. I²C Interface Timing Diagram
6
Rev. 0.95