Datasheet

PCA9509 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 7 — 4 November 2014 11 of 24
NXP Semiconductors
PCA9509
Level translating I
2
C-bus/SMBus repeater
10.1 AC waveforms
11. Test information
Fig 10. Propagation delay and transition times;
port B to port A
Fig 11. Propagation delay and transition times;
port A to port B
Fig 12. Propagation delay from the port A external driver switching off to port B LOW-to-HIGH transition;
port A to port B
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V
CC(B)
V
CC(A)
t
PLH
t
THL
0.5V
CC(B)
0.5V
CC(B)
input
output
30 %
0.5V
CC(A)
0.5V
CC(A)
70 %
30 %
70 %
t
PHL
t
TLH
V
OL
0.1 V
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V
CC(A)
V
CC(B)
t
PLH
t
THL
0.5V
CC(A)
0.5V
CC(A)
input
output
30 %
0.5V
CC(B)
0.5V
CC(B)
70 %
30 %
70 %
t
PHL
t
TLH
t
PLH2
input
port A
output
port B
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50 % of initial value
0.5V
CC(B)
R
L
= load resistor; 1.35 k on port B
C
L
= load capacitance includes jig and probe capacitance; 50 pF
R
T
= termination resistance should be equal to Z
o
of pulse generators
Fig 13. Test circuit for open-drain outputs
PULSE
GENERATOR
V
O
C
L
R
L
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R
T
V
I
V
CC(B)
V
CC(B)
DUT
V
CC(A)