TCA9546A

Name: TCA9546A
Brand: TI
SKU: TCA9546A
Price: 0.4 USD

AKTIV

4-Kanal, 1,65- bis 5,5-V-I2C/SMBus-Schalter mit Reset und Spannungsumsetzung

Jetzt bestellen

Datenblatt

document-pdfAcrobat TCA9546A Low Voltage 4-Channel I2C and SMBus Switch with Reset Function datasheet (Rev. B) (Englisch) PDF | HTML

TCA9546A

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Addresses

8

Supply voltage (max) (V)

5.5

Supply voltage (min) (V)

1.65

Features

Reset pin

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

Number of channels

4

Addresses

8

Supply voltage (max) (V)

5.5

Supply voltage (min) (V)

1.65

Features

Reset pin

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

Number of channels

4

SOIC (D)

16

59.4 mm² 9.9 x 6

TSSOP (PW)

16

32 mm² 5 x 6.4

1-of-4 Bidirectional translating switches
I²C Bus and SMBus compatible
Active-low reset input
Three address pins, allowing up to eight TCA9546A devices on the I²C bus
Channel selection via I²C Bus, in any combination
Power-up with all switch channels deselected
Low R_ON 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 1.65 V to 5.5 V
5.5 V Tolerant inputs
0 to 400-kHz Clock frequency
Latch-up performance exceeds 100 mA Per JESD 78
ESD Protection exceeds JESD 22
- 4000-V Human-body model (A114-A)
- 1500-V Charged-device model (C101)

1-of-4 Bidirectional translating switches
I²C Bus and SMBus compatible
Active-low reset input
Three address pins, allowing up to eight TCA9546A devices on the I²C bus
Channel selection via I²C Bus, in any combination
Power-up with all switch channels deselected
Low R_ON 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 1.65 V to 5.5 V
5.5 V Tolerant inputs
0 to 400-kHz Clock frequency
Latch-up performance exceeds 100 mA Per JESD 78
ESD Protection exceeds JESD 22
- 4000-V Human-body model (A114-A)
- 1500-V Charged-device model (C101)

The TCA9546A is a quad bidirectional translating switch controlled via the I²C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register.

An active-low reset (RESET) input allows the TCA9546A to recover from a situation in which one of the downstream I²C buses is stuck in a low state. Pulling RESET low resets the I²C 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 VCC pin can be used to limit the maximum high voltage, which will be passed by the TCA9546A. This allows the use of different bus voltages on each 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 5.5-V tolerant.

The TCA9546A is a quad bidirectional translating switch controlled via the I²C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register.

An active-low reset (RESET) input allows the TCA9546A to recover from a situation in which one of the downstream I²C buses is stuck in a low state. Pulling RESET low resets the I²C 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 VCC pin can be used to limit the maximum high voltage, which will be passed by the TCA9546A. This allows the use of different bus voltages on each 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 5.5-V tolerant.

open-in-new

Andere I2C & I3C switches & multiplexers suchen

Herunterladen Video mit Transkript ansehen Video

Technische Dokumentation

star

=Von TI ausgewählte Top-Empfehlungen für dieses Produkt

Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.

Alle anzeigen 9

	Typ	Titel		Datum
*	Data sheet	TCA9546A Low Voltage 4-Channel I2C and SMBus Switch with Reset Function datasheet (Rev. B)	PDF \| HTML	29 Okt 2019
	Application brief	Best Practices: I2C Devices on an I3C Shared Bus	PDF \| HTML	30 Mär 2023
	Application note	I2C Solutions for Hot Swap Applications (Rev. A)		31 Jan 2023
	Application note	I2C Dynamic Addressing		25 Apr 2019
	Application note	Choosing the Correct I2C Device for New Designs	PDF \| HTML	07 Sep 2016
	Selection guide	I2C Infographic Flyer		03 Dez 2015
	Application note	Understanding the I2C Bus	PDF \| HTML	30 Jun 2015
	Application note	Maximum Clock Frequency of I2C Bus Using Repeaters		15 Mai 2015
	Application note	I2C Bus Pull-Up Resistor Calculation	PDF \| HTML	13 Feb 2015

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

TCA9548AEVM — Evaluierungsmodul für bidirektionalen Umsetzer von TCA9548A I2C 1 auf 8

The TCA9548AEVM is designed to evaluate and demonstrate the functionality of TI’s TCA954xA family of I2C switches. The TCA9548AEVM can be used as a standalone evaluation module to interface with an existing system or paired with the MSP430 Lauchpad which serves as the I2C master and power supply (...)

Benutzerhandbuch: PDF

Nicht verfügbar auf TI.com

Simulationsmodell

TCA9546A IBIS Model

SCPM033.ZIP (49 KB) - IBIS Model

Herunterladen

Designtool

I2C-DESIGNER — I2C Designer Tool

Use the I2C Designer tool to quickly resolve conflicts in addressing, voltage level and frequency in I2C based designs. Enter master and slave inputs to automatically generate an I2C tree or easily build a custom solution. This tool will help designers save time and comply with the I2C standard (...)

In der Cloud evaluieren

Simulationstool

PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)

Anfordern

Simulationstool

TINA-TI — SPICE-basiertes analoges Simulationsprogramm

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)

Benutzerhandbuch: PDF

Optionen anzeigen

Gehäuse	Pins	Herunterladen
SOIC (D)	16	Optionen anzeigen
TSSOP (PW)	16	Optionen anzeigen

Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

TCA9546A

4-Kanal, 1,65- bis 5,5-V-I2C/SMBus-Schalter mit Reset und Spannungsumsetzung

TCA9546A

Produktdetails

Technische Dokumentation

Design und Entwicklung

TCA9548AEVM — Evaluierungsmodul für bidirektionalen Umsetzer von TCA9548A I2C 1 auf 8

TCA9546A IBIS Model

I2C-DESIGNER — I2C Designer Tool

PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

TINA-TI — SPICE-basiertes analoges Simulationsprogramm

Bestellen & Qualität

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Videoreihe

Videos