Datasheet

PCA9616 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 2 — 10 March 2014 5 of 32
NXP Semiconductors
PCA9616
3-channel multipoint Fm+ dI
2
C-bus buffer with hot-swap logic
6. Pinning information
6.1 Pinning
6.2 Pin description
Fig 4. Pin configuration for TSSOP16
PCA9616PW
V
DD(A)
V
DD(B)
SDA DSDAM
EN DSDAP
SCL DSCLP
PIDET DSCLM
READY DINTM
INT DINTP
V
SS
VDDA_SEL
002aah588
1
2
3
4
5
6
7
8
10
9
12
11
14
13
16
15
Table 3. Pin description
Symbol Pin Description
V
DD(A)
1I
2
C-bus side power supply (0.8 V to 5.5 V)
SDA 2 card side open-drain serial data input/output
EN 3 enable input (active HIGH); internal pull-up resistor to V
DD(A)
SCL 4 card side open-drain serial clock input/output
PIDET
5 plug-in detection, open-drain output LOW to indicate that all hot-swap pins
have been steady and reliably plugged into the backplane
READY
6 open-drain output that goes HIGH when SDA and SCL are disconnected
from DSDA and DSCL, and pulls LOW when two sides are connected
INT 7 card side open-drain interrupt input/output
V
SS
8 ground supply voltage (0 V)
VDDA_SEL 9 V
DD(A)
supply pin option input. Floating automatically selects threshold
based on V
DD(A)
magnitude. Recommend to be HIGH when V
DD(A)
>2.2V
and be LOW when V
DD(A)
< 2.4 V through a resistor.
DINTP 10 line side differential open-drain interrupt plus input/output
DINTM 11 line side differential open-drain interrupt minus input/output
DSCLM 12 line side differential open-drain clock minus input/output
DSCLP 13 line side differential open-drain clock plus input/output
DSDAP 14 line side differential open-drain data plus input/output
DSDAM 15 line side differential open-drain data minus input/output
V
DD(B)
16 differential side power supply (3.0 V to 5.5 V)