STTS2002 datasheet(15/52 Pages) STMICROELECTRONICS

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STTS2002

Temperature sensor operation

Doc ID 15389 Rev 5

15/52

Table 2.

AC characteristics of STTS2002 for SMBus and I2C compatibility timings

Symbol

Parameter

Min

Max

Units

fSCL

SMBUS/I2C clock frequency

400

kHz

tHIGH

Clock high period

600

–

tLOW

(1)

STTS2002 will not initiate clock stretching which is an I2C bus optional feature.

Clock low period

1300

–

(2)

Guaranteed by design and characterization, not necessarily tested.

Clock/data rise time

–

300

(2)

Clock/data fall time

300

tSU:DAT

Data in setup time

100

–

tHD:DI

Data in hold time

–

tHD:DAT

Data out hold time

200

900

tSU:STA

(3)

For a restart condition, or following a WRITE cycle.

Repeated start condition setup time

600

–

tHD:STA

Hold time after (repeated) start condition. After this

period, the first clock cycle is generated.

600

–

tSU:STO

Stop condition setup time

600

–

tBUF

Bus free time between stop (P) and start (S) conditions

1300

–

(4)

This parameter reflects maximum WRITE time for EEPROM.

WRITE time for EEPROM

–

ttimeout

(5)

Bus timeout value supported depends on setting of TMOUT bit 6 in capability register.

Bus timeout (temperature sensor only)

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