Datasheet

PCA9539_PCA9539R All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 8 — 26 November 2014 25 of 38
NXP Semiconductors
PCA9539; PCA9539R
16-bit I
2
C-bus and SMBus low power I/O port with interrupt and reset
12. Test information
R
L
= load resistor.
C
L
= load capacitance includes jig and probe capacitance.
R
T
= termination resistance should be equal to the output impedance of Z
o
of the pulse generators.
Fig 28. Test circuitry for switching times
Fig 29. Load circuit
Table 17. Test data
Test Load Switch
C
L
R
L
t
v(Q)
50 pF 500  2  V
DD
PULSE
GENERATOR
V
O
C
L
50 pF
R
L
500 Ω
002aab284
R
T
V
I
V
DD
DUT
V
DD
open
GND
C
L
50 pF
002aac226
R
L
500 Ω
from output under test
2V
DD
open
GND
S1
R
L
500 Ω