SI7050-A20 Datasheet, PDF(5/26 Page) Silicon Laboratories

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SI7050-A20 Datasheet, PDF (5/26 Pages) Silicon Laboratories – IC TEMPERATURE SENSORS

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Si7050/3/4/5-A20

Table 3. I2C Interface Specifications1

1.9 â¤ VDD â¤ 3.6 V; TA = â40 to +125 Â°C unless otherwise noted.

Parameter

Symbol

Test Condition

Min

Typ Max Unit

Hysteresis

VHYS High-to-low versus low-to- 0.05 x VDD â

high transition

SCLK Frequency2

fSCL

SCL High Time

tSKH

0.6

SCL Low Time

tSKL

1.3

Start Hold Time

tSTH

0.6

Start Setup Time

tSTS

0.6

Stop Setup Time

tSPS

0.6

Bus Free Time

tBUF

Between Stop and Start

1.3

SDA Setup Time

tDS

100

SDA Hold Time

tDH

100

SDA Valid Time

tVD;DAT From SCL low to data valid

SDA Acknowledge Valid Time tVD;ACK From SCL low to data valid

Suppressed Pulse Width3

tSPS

400 kHz

Âµs

0.9

Âµs

0.9

Âµs

Notes:

1. All values are referenced to VIL and/or VIH.

2. Depending on the conversion command, the Si705x may hold the master during the conversion (clock stretch). At

above 100 kHz SCL, the Si705x may also hold the master briefly for user register and device ID transactions. At the

highest I2C speed of 400 kHz the stretching will be <10 Âµs.

3. Pulses up to and including 50 ns will be suppressed.

Rev. 1.0

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