Datasheet

PCA8575_2 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 02 — 21 March 2007 3 of 30
NXP Semiconductors
PCA8575
Remote 16-bit I/O expander for I
2
C-bus with interrupt
6. Pinning information
6.1 Pinning
Fig 2. Simplified schematic diagram of P00 to P17
002aab631
write pulse
read pulse
D
CI
S
FF
Q
power-on reset
data from Shift Register
I
trt(pu)
100 µA
I
OH
I
OL
V
DD
P00 to P07
P10 to P17
V
SS
D
CI
S
FF
Q
data to Shift Register
to interrupt logic
Fig 3. Pin configuration for SO24 Fig 4. Pin configuration for TSSOP24
PCA8575D
INT V
DD
AD1 SDA
AD2 SCL
P00 AD0
P01 P17
P02 P16
P03 P15
P04 P14
P05 P13
P06 P12
P07 P11
V
SS
P10
002aac670
1
2
3
4
5
6
7
8
9
10
11
12
14
13
16
15
18
17
20
19
22
21
24
23
V
DD
SDA
SCL
AD0
P17
P16
P15
P14
P13
P12
P11
P10
INT
AD1
AD2
P00
P01
P02
P03
P04
P05
P06
P07
V
SS
PCA8575PW
002aac671
1
2
3
4
5
6
7
8
9
10
11
12
14
13
16
15
18
17
20
19
22
21
24
23