Datasheet

SDA
SCL
Start
ACK or Read Cycle
t
w
t
REC
RESET
t
REC
0.3 y V
CC
V
CC
/2
t
RESET
Pn
R
L
= 1 kΩ
V
CC
C
L
= 50 pF
SDA LOAD CONFIGURATION
DUT
SDA
DUT
P-PORT LOAD CONFIGURATION
Pn
C
L
= 100 pF
V
CC
/2
TCA9555
www.ti.com .............................................................................................................................................................. SCPS200A – JULY 2009 – REVISED JULY 2009
PARAMETER MEASUREMENT INFORMATION (continued)
A. C
L
includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω , t
r
/t
f
≤ 30 ns.
C. The outputs are measured one at a time, with one transition per measurement.
D. I/Os are configured as inputs.
E. All parameters and waveforms are not applicable to all devices.
Figure 14. Reset Load Circuits and Voltage Waveforms
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