PCA9675BS NXP [NXP Semiconductors], PCA9675BS Datasheet - Page 3

• Manufacturer Part Number: PCA9675BS
• Description: Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
5. Block diagram
PCA9675_1
Product data sheet
Fig 1. Block diagram of PCA9675
Fig 2. Simplified schematic diagram of P00 to P17
data from Shift Register
SDA
AD0
AD1
AD2
SCL
V
V
INT
DD
SS
data to Shift Register
power-on reset
PCA9675
write pulse
read pulse
FILTER
INPUT
POWER-ON
Rev. 01 — 1 February 2007
RESET
Remote 16-bit I/O expander for Fm+ I
INTERRUPT
LOGIC
CONTROL
D
CI
I
2
C-BUS
FF
S
Q
D
CI
FF
REGISTER
S
write pulse
read pulse
SHIFT
Q
I
trt(pu)
LP FILTER
16 BITS
100 A
I
I
OH
OL
PORT
002aab631
I/O
2
002aab627
C-bus with interrupt
PCA9675
© NXP B.V. 2007. All rights reserved.
V
P00 to P07
P10 to P17
V
to interrupt logic
DD
SS
P00 to P07
P10 to P17
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