VD6283TX datasheet(12/59 Pages) STMICROELECTRONICS

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Table 8. I2C interface - timing characteristics for Fast mode (400 kHz)

Symbol

Parameter

Minimum

Typical

Maximum

Unit

FI2C

Operating frequency

—

400

kHz

tLOW

Clock pulse width low

1.3

—

µs

tHIGH

Clock pulse width high

0.6

—

tSP

Pulse width of spikes which are

suppressed by the input filter

—

tBUF

Bus free time between transmissions

1.3

—

µs

tHD.STA

Start hold time

0.6

—

tSU.STA

Start set-up time

0.6

—

tHD.DAT

Data in hold time

—

0.9

tSU.DAT

Data in set-up time

100

—

SCL/SDA rise time

—

250

SCL/SDA fall time

—

250

tSU.STO

Stop set-up time

0.6

—

µs

tVD.DAT

Data valid time

—

0.8

Ci/o

Input/output capacitance (SDA)

—

Cin

Input capacitance (SCL)

—

Load capacitance

—

125

400

Figure 13. I2C timing characteristics

SDA

SCL

tHD.STA

tHIGH

tSU.DAT

tHD.DAT

tSU.STA

tSU.STO

...

tHD.STA

tLOW

tBUF

stop

start

stop

start

VIH

VIL

VIH

VIL

All timings are measured from either VIL or VIH.

VD6283TX

I2C interface

DS13735 - Rev 1

page 12/59

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