Datasheet

PCA9570 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 4 — 17 September 2014 18 of 32
NXP Semiconductors
PCA9570
Remote 4-bit general purpose outputs for 1 MHz I
2
C-bus
V
POR
is critical to the power-on reset. V
POR
is the voltage level at which the reset condition
is released and all the registers and the I
2
C-bus/SMBus state machine are initialized to
their default states. Figure 23
and Table 8 provide more details on this specification.
Fig 23. Power-on reset voltage (V
POR
)
002aah096
POR
time
V
DD
time
V
POR
(rising V
DD
)