Datasheet

PCA9541A All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 5 — 24 April 2014 32 of 45
NXP Semiconductors
PCA9541A
2-to-1 I
2
C-bus master selector with interrupt logic and reset
14. Test information
Fig 25. Definition of RESET timing
SDA
SCL
002aae735
t
rst
50 %
30 %
50 % 50 %
50 %
t
REC;STA
t
w(rst)L
RESET
INTn
START
t
rst
ACK or read cycle
Definitions test circuit:
R
L
= Load resistance.
C
L
= Load capacitance including jig and probe capacitance.
R
T
= Termination resistance should be equal to the output impedance Z
o
of the pulse generator.
Fig 26. Test circuitry for switching times
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