Datasheet

P00 A
0.7 ×
V
CC
0.3 × V
CC
SCL
P17
t
p
v
(see Note A)
Slave
ACK
Unstable
Data
Last Stable Bit
SDA
Pn
Pn
WRITE MODE (R/W = 0)
P00 A
0.7 × V
C
C
0.3 × V
CC
SCL
P17
0.7 × V
CC
0.3 × V
CC
t
ps
t
ph
READ MODE (R/W = 1)
DUT
GND
C
L
= 100 pF
P-PORT LOAD CONFIGURATION
Pn
PCA9555
SCPS131E–AUGUST2005–REVISEDMAY2008......................................................................................................................................................... www.ti.com
PARAMETERMEASUREMENTINFORMATION(continued)
A.C
L
includesprobeandjigcapacitance.
B.t
pv
ismeasuredfrom0.7×V
CC
onSCLto50%I/O(Pn)output.
C.Allinputsaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR≤10MHz,Z
O
=50Ω,t
r
/t
f
≤30ns.
D.Theoutputsaremeasuredoneatatime,withonetransitionpermeasurement.
E.Allparametersandwaveformsarenotapplicabletoalldevices.
Figure13.P-PortLoadCircuitandVoltageWaveforms
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