PCA9543B datasheet, PDF - EEWORLD Datasheet

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PCA9543B: Description9543 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO14; Categorysemiconductor logic; File Size110KB，23 Pages; ManufacturerNXP; Websitehttps://www.nxp.com

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PCA9543B Overview

9543 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO14

PCA9543B Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	14
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	3.6 V
Minimum supply/operating voltage	2.3 V
Rated supply voltage	3.3 V
Processing package description	4.40 MM, plastic, MO-153, SOT-402-1, TSSOP-14
Lead-free	Yes
EU RoHS regulations	Yes
China RoHS regulations	Yes
state	ACTIVE
packaging shape	Rectangle
Package Size	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.6500 mm
terminal coating	Nickel Palladium
Terminal location	pair
Packaging Materials	Plastic/Epoxy
Temperature level	INDUSTRIAL
series	9543
Output characteristics	O-DRN
Logic IC type	multiplexer
Number of inputs	2
Number of outputs	1
Output polarity	TRUE
propagation delay TPD	0.3000 ns

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PCA9543A/43B/43C

2-channel I

C-bus switch with interrupt logic and reset

Rev. 05 — 17 November 2008

Product data sheet

1. General description

The PCA9543A/43B/43C is a bidirectional translating switch, controlled by the I

C-bus.

The SCL/SDA upstream pair fans out to two downstream pairs, or channels. Any

individual SCx/SDx channels or combination of channels can be selected, determined by

the contents of the programmable control register. Two interrupt inputs, INT0 and INT1,

one for each of the downstream pairs, are provided. One interrupt output, INT, which acts

as an AND of the two interrupt inputs, is provided.

An active LOW reset input allows the PCA9543X to recover from a situation where one of

the downstream I

C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the

C-bus state machine and causes all the channels to be deselected, as does the internal

power-on reset function.

The pass gates of the switches are constructed such that the V

pin can be used to limit

the maximum high voltage which will be passed by the PCA9543X. This allows the use of

different bus voltages on each SCx/SDx pair, so that 1.8 V, 2.5 V, or 3.3 V parts can

communicate with 5 V parts without any additional protection. External pull-up resistors

pull the bus up to the desired voltage level for each channel. All I/O pins are 5 V tolerant.

The PCA9543A, PCA9543B and PCA9543C are identical except for the ﬁxed portion of

the slave address.

2. Features

1-of-2 bidirectional translating switches

C-bus interface logic; compatible with SMBus standards

2 active LOW interrupt inputs

Active LOW interrupt output

Active LOW reset input

2 address pins allowing up to 4 devices on the I

C-bus

Alternate address versions A, B and C allow up to a total of 12 devices on the bus for

larger systems or to resolve address conﬂicts

Channel selection via I

C-bus, in any combination

Power-up with all switch channels deselected

Low R

switches

Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses

No glitch on power-up

Supports hot insertion

Low standby current

Operating power supply voltage range of 2.3 V to 5.5 V

PCA9543B Related Products

	PCA9543B	PCA9543A	PCA9543BPW	PCA9543CPW	PCA9543C
Description	9543 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO14	9543 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO14	9543 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO14	9543 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO14	9543 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO14
Number of terminals	14	14	14	14	14
surface mount	Yes	Yes	YES	YES	Yes
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal location	pair	pair	DUAL	DUAL	pair
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Number of functions	1	1	-	1	1
Maximum operating temperature	85 Cel	85 Cel	-	85 °C	85 Cel
Minimum operating temperature	-40 Cel	-40 Cel	-	-40 °C	-40 Cel
Maximum supply/operating voltage	3.6 V	3.6 V	-	-	3.6 V
Minimum supply/operating voltage	2.3 V	2.3 V	-	-	2.3 V
Rated supply voltage	3.3 V	3.3 V	-	-	3.3 V
Processing package description	4.40 MM, plastic, MO-153, SOT-402-1, TSSOP-14	4.40 MM, plastic, MO-153, SOT-402-1, TSSOP-14	-	-	4.40 MM, plastic, MO-153, SOT-402-1, TSSOP-14
Lead-free	Yes	Yes	-	-	Yes
EU RoHS regulations	Yes	Yes	-	-	Yes
China RoHS regulations	Yes	Yes	-	-	Yes
state	ACTIVE	ACTIVE	-	-	ACTIVE
packaging shape	Rectangle	Rectangle	-	-	Rectangle
Package Size	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	-	-	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Terminal spacing	0.6500 mm	0.6500 mm	-	-	0.6500 mm
terminal coating	Nickel Palladium	Nickel Palladium	-	-	Nickel Palladium
Packaging Materials	Plastic/Epoxy	Plastic/Epoxy	-	-	Plastic/Epoxy
series	9543	9543	-	9543	9543
Output characteristics	O-DRN	O-DRN	-	OPEN-DRAIN	O-DRN
Logic IC type	multiplexer	multiplexer	-	-	multiplexer
Number of inputs	2	2	-	-	2
Number of outputs	1	1	-	-	1
Output polarity	TRUE	TRUE	-	TRUE	TRUE
propagation delay TPD	0.3000 ns	0.3000 ns	-	-	0.3000 ns

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