PCA9540B_4

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 04 — 3 September 2009

2 of 22

NXP Semiconductors

PCA9540B

3.

Ordering information

4.

Block diagram

Table 1.

Ordering information

Type number

Topside

mark

Package

Name

Description

Version

PCA9540BD

PA9540B

SO8

plastic small outline package; 8 leads; body width 3.9 mm

SOT96-1

PCA9540BDP

9540B

TSSOP8

plastic thin shrink small outline package; 8 leads; body width 3 mm SOT505-1

PCA9540BGD

40B

XSON8U

plastic extremely thin small outline package; no leads; 8 terminals;

UTLP based; body 3

× 2 × 0.5 mm

SOT996-2

Fig 1.

Block diagram of PCA9540B

SWITCH CONTROL LOGIC

PCA9540B

POWER-ON

RESET

002aae715

SC1

CONTROL

INPUT

FILTER

SCL

SDA

SC0

SD1

SD0