TCA9554ADBR TI I2C I/O Expander | 16-SSOP | 8-bit, 400kHz

Product Overview

The TCA9554ADBR is a 16-pin I2C-bus I/O expander from Texas Instruments, designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface. It operates with a supply voltage range of 1.65V to 5.5V and supports up to 400kHz I2C clock frequency. The device features eight I/O pins that can be configured as inputs or outputs, with internal pull-up resistors and polarity inversion capability. Housed in a compact 16-SSOP package, it is ideal for space-constrained applications requiring additional I/O ports.

Detailed Technical Specifications

Key Features

• 8-bit I/O expander with I2C interface
• Wide supply voltage range: 1.65V to 5.5V
• Low standby current consumption
• Internal pull-up resistors on I/O pins
• Polarity inversion register for input ports
• Open-drain active-low interrupt output
• Up to 8 devices on the same I2C bus (3 address pins)
• Small 16-SSOP package for space-saving designs

Target Applications

• 5G base station control and monitoring (e.g., fan control, status LEDs)
• Automotive dashboard switches and indicator lights
• Industrial PLC I/O expansion
• Consumer electronics (e.g., smart home hubs, gaming consoles)
• Medical devices (e.g., patient monitoring panels)
• Server and networking equipment (e.g., blade servers, routers)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TCA9554ADBR. 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

TCA9554ADBR 是德州儀器（TI）推出的16引腳I2C總線I/O擴展器，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。其工作電壓範圍為1.65V至5.5V，支持高達400kHz的I2C時鐘頻率。該器件具有8個可配置為輸入或輸出的I/O引腳，內置上拉電阻和極性反轉功能。採用緊湊的16-SSOP封裝，非常適合需要額外I/O端口的空間受限應用。

詳細技術參數

核心特性

• 8位I/O擴展器，帶I2C接口
• 寬電源電壓範圍：1.65V 至 5.5V
• 低待機電流消耗
• I/O引腳內置上拉電阻
• 輸入端口極性反轉寄存器
• 開漏低電平有效中斷輸出
• 同一I2C總線最多支持8個器件（3個地址引腳）
• 小型16-SSOP封裝，節省空間

典型應用場景

• 5G基站控制與監控（如風扇控制、狀態指示燈）
• 汽車儀表板開關和指示燈
• 工業PLC I/O擴展
• 消費電子（如智能家居中樞、遊戲主機）
• 醫療設備（如病人監護面板）
• 服務器和網絡設備（如刀片服務器、路由器）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TCA9554ADBR 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]