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VS6552

Table 12. Timing Characteristics

Figure 4. CCI AC characteristics

Note: The VS6552 maximum I2C frequency of 400 kHz is only valid for external clock frequencies at or above 19.2 MHz. Due to a design

issue, for external clock frequencies below 19.2MHz, the maximum guaranteed I2C frequency is limited to 200 kHz.

Clock frequency input

a

-

MHz

a.Nominal frequencies are 6.5 to 26MHz with a 1% center frequency tolerance

Symbol

Parameter description

Min.

Typ.

Max.

Unit

Symbol

Parameter description

Min.

Max.

Unit

MSCL clock frequency

0

400

kHz

Clock pulse width low

1.3

µs

Clock pulse width high

0.6

µs

Pulse width of spikes which are suppressed

by the input filter

050

ns

Bus free time between transmissions

1.3

µs

Start hold time

0.6

µs

Start set-up time

0.6

µs

Data in hold time

0

0.9

µs

Data in set-up time

100

ns

MSCL/MSDA rise time

a

300

ns

MSCL/MSDA fall time

300

ns

Stop set-up time

0.6

µs

Ci/o

Input / Output capacitance (MSDA)

8

pF

Cin

Input capacitance (MSCL)

6

pF

a.Cb = total capacitance on the lines

MSDA

MSCL

...

...

stop

start

stop

start