Datasheet
PCA9703 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
Product data sheet Rev. 4 — 5 September 2014 3 of 28
NXP Semiconductors
PCA9703
18 V tolerant SPI 16-bit GPI with maskable INT
5. Block diagram
6. Pinning information
6.1 Pinning
Fig 1. Block diagram of PCA9703
CS
SCLK
SDIN
SDOUT
INT
002aae021
SHIFT REGISTER
DFF0
IN0
DFF1
IN1
DFF15
IN15
PCA9703
V
SS
V
DD
INT_EN
INPUT
STATUS
REGISTER
20 μA
INPUT
INPUT
INPUT
MASK REGISTER
Fig 2. Pin configuration for HWQFN24 Fig 3. Pin configuration for TSSOP24
002aae024
PCA9703HF
Transparent top view
IN11
IN4
IN5
IN12
IN3 IN13
IN2 IN14
IN1 IN15
IN0 CS
IN6
IN7
V
SS
IN8
IN9
IN10
INT_EN
INT
SDOUT
V
DD
SDIN
SCLK
terminal 1
index area
6
13
5
14
4 15
3 16
2 17
1
18
7
8
9
10
11
12
24
23
22
21
20
19
PCA9703PW
PCA9703PW/Q900
SDOUT V
DD
INT SDIN
INT_EN SCLK
IN0 CS
IN1 IN15
IN2 IN14
IN3 IN13
IN4 IN12
IN5 IN11
IN6 IN10
IN7 IN9
V
SS
IN8
002aae023
1
2
3
4
5
6
7
8
9
10
11
12
14
13
16
15
18
17
20
19
22
21
24
23