TCA9554ADWT TI I2C I/O Expander | 16-SOIC | 8-bit, 2.3V-5.5V

Product Overview

The TCA9554ADWT from Texas Instruments is a 16-pin I2C-bus I/O expander providing 8-bit general-purpose parallel I/O expansion for applications requiring additional I/O lines. It operates over a wide supply voltage range of 2.3V to 5.5V and supports standard I2C interface up to 400 kHz. The device features an interrupt output, active-low reset input, and three address pins allowing up to eight devices on the same bus. Housed in a compact 16-SOIC package, it is ideal for space-constrained designs.

Detailed Technical Specifications

Key Features

• 8-bit bidirectional I/O ports with internal pull-up resistors
• I2C interface with three address pins (up to 8 devices)
• Interrupt output for event-driven communication
• Active-low reset input for initialization
• Low standby current consumption (1 µA typical)
• Schmitt-trigger inputs for noise immunity
• Supports hot insertion
• RoHS compliant and lead-free

Target Applications

• 5G base station control and monitoring (e.g., antenna tilt, power management)
• Automotive dashboard switches and LED control
• Industrial PLC I/O expansion
• Server and telecom equipment status indicators
• Consumer electronics (e.g., smart home hubs, gaming consoles)
• Medical devices (e.g., patient monitoring systems)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TCA9554ADWT. 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

TCA9554ADWT 是德州儀器推出的16引腳I2C匯流排I/O擴展器，提供8位通用並行I/O擴展，適用於需要額外I/O線路的應用。它支持2.3V至5.5V的寬電源電壓範圍，並支持最高400 kHz的標準I2C介面。該器件具有中斷輸出、低電平有效復位輸入和三個地址引腳，允許同一匯流排上最多八個器件。採用緊湊的16-SOIC封裝，適合空間受限的設計。

詳細技術參數

核心特性

• 8位雙向I/O端口，帶內部上拉電阻
• I2C介面，三個地址引腳（最多8個器件）
• 中斷輸出，用於事件驅動通信
• 低電平有效復位輸入，用於初始化
• 低待機電流消耗（典型值1 µA）
• 施密特觸發輸入，抗噪聲能力強
• 支持熱插拔
• 符合RoHS標準，無鉛

典型應用場景

• 5G基站控制與監控（如天線傾角、電源管理）
• 汽車儀表板開關和LED控制
• 工業PLC I/O擴展
• 服務器和電信設備狀態指示燈
• 消費電子（如智能家居中樞、遊戲主機）
• 醫療設備（如病人監護系統）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TCA9554ADWT 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。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• 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。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

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.
WhatsApp: +852 5209 9691 | Email: [email protected]