Datasheet

PCA9537_5 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 05 — 7 May 2009 16 of 24
NXP Semiconductors
PCA9537
4-bit I
2
C-bus and SMBus low power I/O port with interrupt and reset
11. 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 Z
o
of the pulse generators.
Fig 17. Test circuitry for switching times
Fig 18. Test circuit
Table 11. Test data
Test Load Switch
R
L
C
L
t
v(Q)
500 Ω 50 pF 2 × V
DD
PULSE
GENERATOR
V
O
C
L
50 pF
R
L
500 Ω
002aab393
R
T
V
I
V
DD
DUT
6.0 V
open
V
SS
C
L
50 pF
002aac226
R
L
500 Ω
from output under test
2V
DD
open
GND
S1
R
L
500 Ω