Cirrus-logic CS8416 Manual do Utilizador descarregar pdf (Página 11)

DS578F3 11

CS8416

SWITCHING CHARACTERISTICS - CONTROL PORT- I²C FORMAT

(Inputs: Logic 0 = 0 V, Logic 1 = VL; C

= 20 pF)

Notes:

15. Data must be held for sufficient time to bridge the 300 ns transition time of SCL.

Parameter Symbol Min Max Unit

SCL Clock Frequency f

scl

-100kHz

Bus Free Time Between Transmissions t

buf

4.7 - µs

Start Condition Hold Time (prior to first clock pulse) t

hdst

4.0 - µs

Clock Low time t

low

4.7 - µs

Clock High Time t

high

4.0 - µs

Setup Time for Repeated Start Condition t

sust

4.7 - µs

SDA Hold Time from SCL Falling (Note 15) t

hdd

10 - ns

SDA Setup time to SCL Rising t

sud

250 - ns

Rise Time of SCL and SDA t

- 1000 ns

Fall Time SCL and SDA t

-300ns

Setup Time for Stop Condition t

susp

4.7 - µs

buf

hdst

low

hdd

high

sud

sust

susp

Stop Start

Start

Stop

Repeated

SDA

SCL

Figure 4. I²C Mode Timing

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 59 60

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