Datasheet

PCA9535_PCA9535C_5 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 05 — 15 September 2008 21 of 31
NXP Semiconductors
PCA9535; PCA9535C
16-bit I
2
C-bus and SMBus, low power I/O port with interrupt
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 23. Test circuitry for switching times
Fig 24. Load circuit
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