LTC4331

6

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

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: Guaranteed by design, not production tested.

Note 3: Local SCL frequencies between 1000kHz and 2000kHz are

allowed, however the effective link throughput maximum is 1000kHz. SCL

low clock-stretching by the LTC4331 must be respected.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

tHD:DAT:FMASTER

Data Hold from LTC4331

l

50

ns

tHD:DAT:TMASTER

Data Hold to LTC4331

(Note 2)

l

0

ns

tSU:DAT:FMASTER

Data Setup from LTC4331

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

50

100

250

ns

ns

ns

tSU:DAT:TMASTER

Data Setup to LTC4331

l

50

ns

tTIMEOUT:MASTER

SCL Low Timeout Detection

l

28

31.5

35

ms

tLOW:MASTER

SCL Low Time

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.6

1.5

5.8

µs

µs

µs

tHIGH:MASTER

SCL High Time

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm

SPEED1/SPEED2 = Sm

l

l

l

0.4

1

3.8

µs

µs

µs

tF

Fall Time (SDA, SCL) (Note 5)

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm, Sm

CL = 550pF, RL = 1k (Figure5) (Note 2)

l

l

l

120

300

25

ns

ns

ns

tR

Rise Time (SDA, SCL) (Note 5)

SPEED1/SPEED2 = Fm+

SPEED1/SPEED2 = Fm, Sm

l

l

120

300

ns

ns

tSPIKE

Noise Spike Suppression Time (SDA, SCL)

l

0

50

ns

Transceiver

tRD, tFD

Driver Rise or Fall Time (Figure4)

RDIFF = 54, CL = 100pF, SLO = 1

RDIFF = 54, CL = 100pF, SLO = 0

l

l

500

4

800

15

1200

ns

ns

tLINK_TIMEOUT

Response Time for LINK = 1 after Disconnection

REMOTE = 1

REMOTE = 0 (Note 4)

168

96 • SF

ms

µs

System

tALT_PROP

ALERT Propagation Delay, Remote to Local

I2C Bus idle (Note 4)

0.8 • SF 2 • SF 26 • SF

µs

tCTRL_PROP

Local CTRL Propagation Delay to Remote CTRL

I2C Bus idle (Note 4)

0.8 • SF 2 • SF 26 • SF

µs

tSTART_PROP

I2C START Link Propagation Delay, Local to Remote (Note 4)

2 • SF

µs

tLDAT_PROP

I2C DATA Link Propagation Delay, Local to Remote (Note 4)

2 • SF

µs

tSTOP_PROP

I2C STOP Link Propagation Delay, Local to Remote (Note 4)

2 • SF

µs

tRDAT_PROP

I2C DATA Link Propagation Delay, Remote to Local (Note 4)

2 • SF

µs

Note 4: SF = Speed Factor. See Table3.

Note 5: SCL and SDA rise and fall time measurement limits are defined as

follows:

Rise Time Limit: 0.65V to 1.5V

Fall Time Limit: 1.5V to 0.65V