TCA6408ARGTR TI I2C I/O Expander | 16-VQFN (3x3) | 8-bit, 1.65-5.5V

Product Overview

The TCA6408ARGTR is a low-voltage 8-bit I2C and SMBus I/O expander from Texas Instruments. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface (serial clock and serial data). The device features an 8-bit bidirectional I/O port (P0–P7) with open-drain outputs and configurable polarity inversion. Operating from 1.65 V to 5.5 V, it supports standard (100 kHz) and fast (400 kHz) I2C modes. The TCA6408ARGTR is available in a compact 16-pin VQFN (3x3 mm) package, ideal for space-constrained applications.

Detailed Technical Specifications

Key Features

• 8-bit bidirectional I/O port with open-drain outputs
• I2C/SMBus interface with up to 400 kHz clock frequency
• Wide supply voltage range: 1.65 V to 5.5 V
• Low standby current: 1.5 µA typical
• Configurable polarity inversion register
• Active-low reset input (RESET)
• Three hardware address pins (A0, A1, A2) allow up to 8 devices on the same bus
• Power-on reset with all channels set as inputs
• Small 16-pin VQFN (3x3 mm) package

Target Applications

• 5G base station: Control and status monitoring of power amplifiers, filters, and antenna tilt motors
• Automotive dashboard: Reading switch inputs (e.g., steering wheel controls) and driving indicator LEDs
• Industrial PLC: Expanding digital I/O for sensor and actuator interfaces
• Consumer electronics: GPIO expansion for smart home hubs, gaming consoles, and set-top boxes
• Medical devices: Patient monitoring systems requiring additional I/O for alarms and controls

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TCA6408ARGTR. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

TCA6408ARGTR 是德州儀器（TI）推出的低電壓 8 位 I2C 和 SMBus I/O 擴展器。它通過 I2C 接口（串行時鐘和串行數據）為大多數微控制器系列提供通用遠程 I/O 擴展。該器件具有一個 8 位雙向 I/O 端口（P0–P7），帶開漏輸出和可配置極性反轉。工作電壓範圍為 1.65 V 至 5.5 V，支持標準（100 kHz）和快速（400 kHz）I2C 模式。TCA6408ARGTR 採用緊湊的 16 引腳 VQFN（3x3 mm）封裝，非常適合空間受限的應用。

詳細技術參數

核心特性

• 8 位雙向 I/O 端口，開漏輸出
• I2C/SMBus 接口，時鐘頻率高達 400 kHz
• 寬電源電壓範圍：1.65 V 至 5.5 V
• 低待機電流：典型值 1.5 µA
• 可配置極性反轉寄存器
• 低電平有效復位輸入（RESET）
• 三個硬件地址引腳（A0、A1、A2），同一總線上最多支持 8 個器件
• 上電復位，所有通道設置為輸入
• 小型 16 引腳 VQFN（3x3 mm）封裝

典型應用場景

• 5G 基站：控制功率放大器、濾波器和天線傾角電機的狀態監控
• 汽車儀表盤：讀取開關輸入（如方向盤控制）和驅動指示燈
• 工業 PLC：擴展數字 I/O 用於傳感器和執行器接口
• 消費電子：智能家居中樞、遊戲機和機頂盒的 GPIO 擴展
• 醫療設備：需要額外 I/O 進行報警和控制的病人監護系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TCA6408ARGTR 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
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• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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