3.1

I²C interface characteristics

Refer to Section 5 I²C- inter-IC control interface for additional details.

The data in the following table are based on standard I²C protocol requirements. Values are not tested in

production and are not guaranteed. The I²C interface can be used only to access the registers of the device for

configuration purposes, but not for reading accelerometer data.

Symbol

Parameter

Test conditions

Min.

Typ.(1)

Max.

Unit

VIH

Digital high-level input voltage

0.7*Vdd

V

VIL

Digital low-level input voltage

0.3*Vdd

V

VOL

Low-level output voltage

IOL = 2 mA(2)

0.2

V

1. Typical specifications are not guaranteed.

2. 2 mA is the maximum driving capability, that is, the maximum DC current that can be sourced/sunk by the digital pad in

order to guarantee the correct digital output voltage levels VOH and VOL.

Symbol

Parameter

Test conditions

Min.

Typ.(1)

Max.

Unit

SCL

96

400

kHz

SDA/SCL bus capacitance normal mode

150

pF

SDA/SCL bus capacitance high-speed mode

50

pF

SDA/SCL pull-up resistance

2500

Ohm

SCL clock low time

1.3

µs

SCL clock high time

0.6

SDA setup time

100

ns

SDA data hold time

0

0.9

µs

Start condition hold time

0.6

Repeated start condition setup time

0.6

Stop condition setup time

0.6

Bus free time between stop and start condition

1.3

I2C_HYST

SDA/SCL minimum pulse width hysteresis

50

ns

1. Typical specifications are not guaranteed.

AIS25BA

I²C interface characteristics

DS14019 - Rev 1

page 7/31