Datasheet

PCA9537_5 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 05 — 7 May 2009 15 of 24
NXP Semiconductors
PCA9537
4-bit I
2
C-bus and SMBus low power I/O port with interrupt and reset
Fig 15. Expanded view of read input port register
Fig 16. Expanded view of write to output port register
SCL
002aae641
210AP
70 %
30 %
SDA
input
50 %
INT
t
v(INT)
t
rst(INT)
t
h(D)
t
su(D)
SCL
002aad735
210AP
70 %
SDA
output
50 %
t
v(Q)