TCA9554ADWR TI I2C I/O Expander | 16-SOIC | 8-bit, 400kHz

Product Overview

The TCA9554ADWR from Texas Instruments is a low-voltage 8-bit I2C and SMBus I/O expander. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface. The device features an 8-bit configuration register, input register, and output register. The TCA9554ADWR is available in a 16-pin SOIC package and operates over a wide voltage range of 1.65V to 5.5V, making it suitable for various applications.

Detailed Technical Specifications

Key Features

• 8-bit bidirectional I/O expander
• I2C interface with up to 400 kHz clock frequency
• Three hardware address pins allow up to 8 devices on the same bus
• Low standby current consumption
• Open-drain active-low interrupt output
• Input and output configuration registers
• Polarity inversion register
• Power-on reset with all registers set to default
• No glitch on power-up
• Supports hot insertion
• Low operating voltage range: 1.65V to 5.5V

Target Applications

• 5G base stations: control and status monitoring of power amplifiers, filters, and antennas
• Automotive dashboard: reading switch inputs and controlling LEDs
• Industrial automation: sensor interfacing and actuator control
• Server and telecom equipment: fan speed control, status LED drivers
• Consumer electronics: GPIO expansion for microcontrollers
• Medical devices: patient monitoring systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TCA9554ADWR. 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

TCA9554ADWR 是德州儀器（TI）推出的一款低電壓 8 位 I2C 和 SMBus I/O 擴展器。它通過 I2C 接口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 8 位配置寄存器、輸入寄存器和輸出寄存器。TCA9554ADWR 採用 16 引腳 SOIC 封裝，工作電壓範圍為 1.65V 至 5.5V，適用於多種應用。

詳細技術參數

核心特性

• 8 位雙向 I/O 擴展器
• I2C 接口，時鐘頻率高達 400 kHz
• 三個硬件地址引腳，同一總線上最多支持 8 個器件
• 低待機電流消耗
• 開漏有效低電平中斷輸出
• 輸入和輸出配置寄存器
• 極性反轉寄存器
• 上電復位，所有寄存器恢復默認值
• 上電無毛刺
• 支持熱插入
• 低工作電壓範圍：1.65V 至 5.5V

典型應用場景

• 5G 基站：功率放大器、濾波器和天線的控制與狀態監測
• 汽車儀表板：讀取開關輸入和控制 LED
• 工業自動化：傳感器接口和執行器控制
• 服務器和電信設備：風扇速度控制、狀態 LED 驅動
• 消費電子：微控制器的 GPIO 擴展
• 醫療設備：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 TCA9554ADWR 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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• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 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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以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
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