Datasheet

PCA9538 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 7 — 26 November 2014 19 of 34
NXP Semiconductors
PCA9538
8-bit I
2
C-bus and SMBus low power I/O port with interrupt and reset
Fig 17. Expanded view of read input port register
Fig 18. Expanded view of write to output port register
SCL
002aae641
210 AP
70 %
30 %
SDA
input
50 %
INT
t
v(INT)
t
rst(INT)
t
h(D)
t
su(D)
SCL
002aad735
210 AP
70 %
SDA
output
50 %
t
v(Q)