PCA9549D datasheet(2/24 Pages) PHILIPS

Part #	PCA9549D

Description	Octal bus switch with individually I2C-bus controlled enables

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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2 / 24 page

PCA9549_1

Product data sheet

Rev. 01 — 11 July 2006

2 of 24

Philips Semiconductors

PCA9549

Octal bus switch with individually I2C-bus controlled enables

3.

Ordering information

3.1 Ordering options

4.

Block diagram

Table 1.

Ordering information

Type number

Package

Name

Description

Version

PCA9549D

SO24

plastic small outline package; 24 leads;

body width 7.5 mm

SOT137-1

PCA9549PW

TSSOP24

plastic thin shrink small outline package; 24 leads;

body width 4.4 mm

SOT355-1

PCA9549BS

HVQFN24

plastic thermal enhanced very thin quad ﬂat package;

no leads; 24 terminals; body 4

× 4 × 0.85 mm

SOT616-1

Table 2.

Ordering options

Type number

Topside mark

Temperature range

PCA9549D

−40 °C to +85 °C

PCA9549PW

PCA9549

−40 °C to +85 °C

PCA9549BS

9549

−40 °C to +85 °C

Fig 1.

Block diagram

SWITCH CONTROL LOGIC

PCA9549

RESET

CIRCUIT

002aaa991

1A

2A

3A

4A

5A

6A

7A

8A

VSS

VDD

RESET

I2C-BUS

CONTROL

INPUT

FILTER

SCL

SDA

A0

A1

A2

1B

2B

3B

4B

5B

6B

7B

8B

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