# TCA9548ARGER (Component) ## Description Bus Switch 1 x 8:1 24-VQFN (4x4) # TCA9548ARGER Engineering Specifications **General Description** The TCA9548ARGER is a low-voltage I²C and SMBus switch manufactured by Texas Instruments. It is designed to expand and manage I²C communication networks by allowing a single master device to selectively communicate with multiple downstream buses through independent switching channels. The device functions as a bidirectional translating switch, enabling communication between devices operating at different voltage levels while maintaining protocol compatibility. Through software control, individual channels can be enabled or disabled, providing flexible bus segmentation, address conflict resolution, and system scalability. The TCA9548ARGER is widely used in embedded systems, industrial control equipment, data acquisition platforms, telecommunications hardware, server management systems, sensor networks, and Internet of Things applications where multiple I²C devices must be connected to a single controller. Its low-power CMOS architecture, integrated reset functionality, and hot-insertion support make it suitable for complex digital systems requiring reliable and efficient I²C bus management. **Engineering Specifications** **Manufacturer:** Texas Instruments **Manufacturer Part Number:** TCA9548ARGER **Component Type:** I²C bus switch and multiplexer **Technology:** Low-voltage CMOS **Interface Standard:** I²C and SMBus compatible **Switch Configuration:** Multiple downstream I²C channel selection **Channel Operation:** Software-controlled channel enable and disable **Communication Direction:** Bidirectional signal transmission **Voltage Translation Capability:** Supports communication between devices operating at different logic voltages **Bus Isolation Function:** Independent channel isolation for address conflict management **Control Method:** I²C command-based channel selection **Address Selection:** Configurable device addressing through hardware address pins **Power Supply Configuration:** Single-supply operation **Power Consumption:** Low-power operation suitable for embedded applications **Signal Integrity Features:** Low ON-state resistance and low propagation delay **Reset Function:** Dedicated hardware reset input **Hot Insertion Support:** Prevents bus disruption during device insertion and removal **Fail-Safe Characteristics:** Protection against unintended bus communication during power transitions **Bus Capacitance Management:** Improves communication reliability in large I²C networks **System Scalability:** Supports expansion of sensor, peripheral, and control-device networks **Electrostatic Protection:** Integrated ESD protection circuitry **Operating Temperature Range:** Industrial temperature range **Package Type:** VQFN surface-mount package **Mounting Style:** Surface mount technology **Package Construction:** Leadless thermally efficient package **Environmental Compliance:** RoHS compliant and lead-free **Reliability Features:** Designed for high-reliability industrial and embedded applications **Typical Applications** I²C bus expansion systems Sensor aggregation networks Industrial automation equipment Embedded controller platforms Server management systems Data acquisition hardware Telecommunications equipment Internet of Things devices Medical instrumentation Consumer electronics Robotics and automation systems Environmental monitoring devices Smart building control systems Automotive electronic subsystems Multi-sensor embedded applications #TCA9548A #TCA9548ARGER #TexasInstruments #I2C #SMBus #BusMultiplexer #I2CSwitch #EmbeddedSystems #IndustrialAutomation #SensorNetworks #IoT #DataAcquisition #ElectronicsEngineering #ElectronicComponents #EngineeringSpecifications ## Component Details - **Owner:** adrian95 - **Created:** 6/5/2026 - **Last Updated:** 6/5/2026 - **Visibility:** Public - **Manufacturer Part Number:** TCA9548ARGER - **Part Type:** Electromechanical Components - **Manufacturer Name:** Texas Instruments - **Symbol Style:** parametric-v1 - **Package or Case Code:** 24-VQFN - **Datasheet URL:** https://www.ti.com/lit/ds/symlink/tca9548a.pdf ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/tca9548arger/texas-instruments.html?utm_currency=USD&region=nac) | N/A | N/A | | [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/TCA9548ARGER/4497280) | N/A | N/A | | [HQonline](https://www.hqonline.com/product-detail/other-interfaces-ti-tca9548arger-2500429991) | $0.64855 | 123 | | [LCSC](https://www.lcsc.com/product-detail/C555456.html) | $0.8397 | 15K | | [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/TCA9548ARGER?qs=2I4pGxj2dxUewY0zSIpfWQ%3D%3D) | $1.41 | 13K | | [Verical](https://www.verical.com/pd/texas-instruments-bus-switch-TCA9548ARGER-795343?utm_currency=USD) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Texas Instruments - **MPN:** TCA9548ARGER - **Mount Type:** Surface Mount - **Package / Case Code:** 24-VQFN - **Pin Count:** 25 - **Logic Function:** AND - **Compliance:** Rohs, Lead Free ## Pins | Pin | Name | Type | |-----|------|------| | 1 | SD0 | | | 2 | SC0 | | | 3 | SD1 | | | 4 | SC1 | | | 5 | SD2 | | | 6 | SC2 | | | 7 | SD3 | | | 8 | SC3 | | | 9 | GND | | | 10 | SD4 | | | 11 | SC4 | | | 12 | SD5 | | | 13 | SC5 | | | 14 | SD6 | | | 15 | SC6 | | | 16 | SD7 | | | 17 | SC7 | | | 18 | A2 | | | 19 | SCL | | | 20 | SDA | | | 21 | VCC | | | 22 | A0 | | | 23 | A1 | | | 24 | ~RESET | | | 25 | EP | | --- *Generated from [https://www.flux.ai/adrian95/tca9548arger](https://www.flux.ai/adrian95/tca9548arger)*