PCA9575 datasheet(7/38 Pages) NXP

7 / 38 page

PCA9575_3

Product data sheet

Rev. 03 — 9 November 2009

7 of 38

NXP Semiconductors

PCA9575

16-bit I2C-bus and SMBus, level translating, low voltage GPIO

6.2 Pin description

[1]

HWQFN24 package die supply ground is connected to both VSS pin and exposed center pad. VSS pin must

be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board

level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad

on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the

PCB in the thermal pad region.

Table 2.

Pin description

Symbol

Type

Description

TSSOP28 TSSOP24 HWQFN24

address input 0

VDD

power supply

supply voltage

RESET

active LOW reset input

P0_0

I/O

port 0 input/output 0

P0_1

I/O

port 0 input/output 1

P0_2

I/O

port 0 input/output 2

P0_3

I/O

port 0 input/output 3

address input 1

VDD(IO)0

power supply

I/O supply voltage for bank 0

P0_4

I/O

port 0 input/output 0

P0_5

I/O

port 0 input/output 1

P0_6

I/O

port 0 input/output 2

P0_7

I/O

port 0 input/output 3

INT

interrupt output (open-drain;

active LOW)

address input 2

VSS

10[1]

ground

supply ground

P1_7

I/O

port 1 input/output 4

P1_6

I/O

port 1 input/output 5

P1_5

I/O

port 1 input/output 6

P1_4

I/O

port 1 input/output 7

VDD(IO)1

power supply

I/O supply voltage for bank 1

address input 3

P1_3

I/O

port 1 input/output 3

P1_2

I/O

port 1 input/output 2

P1_1

I/O

port 1 input/output 1

P1_0

I/O

port 1 input/output 0

SDA

I/O

serial data line

SCL

serial clock line

PCA9575 Datasheet(PDF) 7 Page - NXP Semiconductors

PCA9575 Datasheet(HTML) 7 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

Datasheet Download

Link URL