LTC4331

5

Rev 0

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The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C, CL = 20pF, VCC = 5V, VL = 3.3V, GND = 0V; unless otherwise noted.

Conditions Fast-mode Plus, Fast-mode, and Standard-mode listed below as Fm+, Fm, and Sm respectively.

SWITCHING CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

tON_LOW

Pulse Width of ON Low for Valid Reset Condition

l

1

µs

Local Mode (REMOTE = 0)

tREADY

Delay From ON Rise to RDY Low

I2C Bus IDLE

65

µs

tREMOTE_RESET

Delay From Local ON Low for Valid Remote Reset

Condition

l

180

ms

fSCL:SLAVE

Slave Device SCL Operating Frequency

(Note 3)

l

10

1000

2000

kHz

tBUF:SLAVE

Bus free Time between STOP and START

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.5

1.3

4.7

µs

µs

µs

tSU:STA:SLAVE

Repeated Start Condition Setup Time

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.26

0.6

4.7

µs

µs

µs

tHD:STA:SLAVE

Hold Time after START Condition

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.26

0.6

4

µs

µs

µs

tSU:STO:SLAVE

STOP Condition Setup Time

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.26

0.6

4

µs

µs

µs

tSU:DAT:FSLAVE

Data Setup Time from LTC4331

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

50

100

250

ns

ns

ns

tSU:DAT:TSLAVE

Data Setup Time to LTC4331

l

50

ns

tHD:DAT:TSLAVE

Data Hold Time to LTC4331

l

0

ns

tHD:DAT:FSLAVE

Data Hold Time from LTC4331

l

50

ns

tTIMEOUT:SLAVE

SCL Low Timeout Detection

l

28

31.5

35

ms

tLOW:SLAVE

SCL Low Time

l

0.25

µs

tHIGH:SLAVE

SCL High Time

l

0.25

50

µs

tHIGH:IDLE

SCL High for Bus Idle Detection

l

70

µs

Remote Mode (REMOTE = 1)

tSCL:MASTER

Master Device SCL Operating Period

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

1

2.5

10

µs

µs

µs

tBUF:MASTER

Bus Free Time between STOP and START

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.5

1.3

4.7

0.6

1.5

5

µs

µs

µs

tHD:STA:MASTER

Hold Time after START Condition

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.26

0.6

4

0.3

0.8

4.2

µs

µs

µs

tSU:STA:MASTER

Repeated Start Condition Setup Time

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.26

0.6

4.7

0.3

0.8

4.8

µs

µs

µs

tSU:STO:MASTER

Setup Time for STOP

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.26

0.6

4

0.3

0.8

4.2

µs

µs

µs