Datasheet

P0 A
SCL
P3
Unstable
Data
LastStableBit
SDA
WRITEMODE(R/ =0)W
P0 A
SCL
P3
READMODE(R/ =1)W
DUT
P PORTLOADCONFIGURATION
Pn
500 W
500 W
2 V´
CCP
0.7 V´
CCP
0.3 V´
CCI
0.7 V´
CCI
0.3 V´
CCI
0.5 V´
CCP
C =50pF
(seeNote A)
L
Slave
ACK
t
(seeNoteB)
pv
Pn
Pn
t
ps
t
ph
TCA6424
www.ti.com SCPS175A –NOVEMBER 2007–REVISED NOVEMBER 2009
PARAMETER MEASUREMENT INFORMATION (continued)
A. C
L
includes probe and jig capacitance.
B. t
pv
is measured from 0.7 × V
CC
on SCL to 50% I/O (Pn) output.
C. All inputs are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω, t
r
/t
f
≤ 30 ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. All parameters and waveforms are not applicable to all devices.
Figure 12. P-Port Load Circuit and Timing Waveforms
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