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TCA8418E_15 Datasheet, PDF (14/50 Pages) Texas Instruments – I2C Controlled Keypad Scan IC With Integrated ESD Protection
TCA8418E
SCPS222C – MAY 2010 – REVISED OCTOBER 2015
Parameter Measurement Information (continued)
VCC
SDA
DUT
RL = 1 kW
CL = 50 pF
(see Note A)
Pn
DUT
500 W
CL = 50 pF
(see Note A)
500 W
SDA LOAD CONFIGURATION
P-PORT LOAD CONFIGURATION
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2 ´ VCC
SCL
Start
ACK or Read Cycle
SDA
RESET
tREC
tRESET
tW
VCC/2
tREC
0.3 ´ VCC
Pn
VCC/2
tRESET
A. CL includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr/tf ≤ 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 19. Reset Load Circuits and Voltage Waveforms
14
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