CS42324 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
Manufacturer
CS42324 Datasheet PDF : 71 Pages
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CS42324
SWITCHING CHARACTERISTICS - SOFTWARE MODE - I²C FORMAT
Inputs: Logic ‘0’ = GND = GNDH = 0 V, Logic ‘1’ = VL, CL = 30 pF)
Parameter
Symbol
Min
SCL Clock Frequency
fscl
-
RST Rising Edge to Start
tirs
500
Bus Free Time Between Transmissions
tbuf
4.7
Start Condition Hold Time (prior to first clock pulse)
thdst
4.0
Clock Low time
tlow
4.7
Clock High Time
thigh
4.0
Setup Time for Repeated Start Condition
tsust
4.7
SDA Hold Time from SCL Falling
(Note Note:)
thdd
0
SDA Setup time to SCL Rising
tsud
250
Rise Time of SCL and SDA
trc
-
Fall Time SCL and SDA
tfc
-
Setup Time for Stop Condition
tsusp
4.7
Acknowledge Delay from SCL Falling
tack
300
Max
Unit
100
kHz
-
ns
-
µs
-
µs
-
µs
-
µs
-
µs
-
µs
-
ns
1
µs
300
ns
-
µs
1000
ns
Note: 19. Data must be held for sufficient time to bridge the transition time, tfc, of SCL.
RST
t irs
Stop
Start
Repeated
Start
SDA
SCL
t buf
t hdst
t high
t hdst
tf
t low t hdd
t sud
t sust
tr
Figure 5. Software Mode Timing - I²C Format
Stop
t susp
24
DS721A6
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