VS6663 datasheet(51/64 Pages) STMICROELECTRONICS

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VS6663

Electrical characteristics

7.6.2

CCI interface - timing characteristics

Figure 19. CCI AC characteristics

All timings are measured from either 0.3 VDIG or 0.7 VDIG.

Table 32. CCI interface - timing characteristics

Symbol

Parameter

Minimum

Typical

Maximum

Unit

tSCL

SCL clock frequency

400

kHz

tLOW

Clock pulse width low

1.3

μs

tHIGH

Clock pulse width high

0.6

μs

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

μs

tSU.STA

Start set-up time

0.6

μs

tHD.DAT

Data in hold time

0.9

μs

tSU.DAT

Data in set-up time

100

SCL/SDA rise time

20+0.1 Cb(1)

Cb = total capacitance of one bus line in pF

300

SCL/SDA fall time

20+0.1 Cb(1)

300

tSU.STO

Stop set-up time

0.6

μs

Ci/o

Input/output capacitance (SDA)

Cin

Input capacitance (SCL)

SDA

SCL

tHD.STA

tHIGH

tSU.DAT

tHD.DAT

tSU.STA

tSU.STO

...

tHD.STA

tLOW

tBUF

stop

start

stop

start

0.7 VDIG

0.3 VDIG

0.7 VDIG

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