Datasheet

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PARAMETERMEASUREMENTINFORMATION
SCL
SDA
SDA LOAD CONFIGURATION
1
2, 3
V
CC
R
= 1 k
L
Ω
C = 50 pF
(see Note A)
L
DUT
SDA
Three Bytes for Complete
Device Programming
Stop
Condition
(P)
Start
Condition
(S)
Address
Bit 7
(MSB)
Address
Bit 6
Address
Bit 1
R/
Bit 0
(LSB)
W
ACK
(A)
Data
Bit 7
(MSB)
Data
Bit 0
(LSB)
Stop
Condition
(P)
0.7
V×
CC
0.3 V×
CC
VOLTAGE WAVEFORMS
Start or
Repeat Start
Condition
Repeat Start
Condition
Stop
Condition
BYTE
DESCRIPTION
I C address
2
P-port data
0.7 V×
CC
0.3 V×
CC
t
scl
t
sch
t
buf
t
icf
t
icf
t
icr
t
sth
t
icr
t
sds
t
sp
t
sdh
t
vd(ack)
t
vdH(Data)
t
sts
t
sps
t
vdL(Data)
PCA9548A
8-CHANNELI
2
CSWITCH
WITHRESET
SCPS143C–OCTOBER2006–REVISEDJUNE2007
A.C
L
includesprobeandjigcapacitance.
B.Allinputsaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR≤10MHz,Z
O
=50Ω,t
r
/t
f
≤30ns.
C.Notallparametersandwaveformsareapplicabletoalldevices.
Figure9.I
2
CLoadCircuitandVoltageWaveforms
13
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