TCA9539RGER TI I2C GPIO Expander | 24-VQFN (4x4) | 16-bit, 1.65-5.5V

Product Overview

The TCA9539RGER from Texas Instruments is a 16-bit I2C-bus and SMBus I/O expander designed for 1.65-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface (serial clock (SCL) and serial data (SDA)). The device features an interrupt output (INT) that can be connected to the interrupt logic of the microcontroller, sending an interrupt signal when any input state differs from its corresponding input port register state. The TCA9539RGER is available in a compact 24-pin VQFN (4x4 mm) package, making it ideal for space-constrained applications.

Detailed Technical Specifications

Key Features

• 16-bit bidirectional I/O ports
• I2C bus interface with up to 400 kHz clock frequency
• Open-drain active-low interrupt output
• Three hardware address pins allow up to 8 devices on the same bus
• Low standby current consumption
• Power-on reset with all I/Os set as inputs
• No glitch on power-up
• 5-V tolerant I/Os in power-down mode
• Latch-up performance exceeds 100 mA per JESD 78, Class II

Target Applications

• 5G base stations: for monitoring and controlling power amplifiers, fans, and status LEDs
• Automotive dashboard: for reading switch inputs and controlling indicator lights
• Industrial PLCs: for expanding digital I/O for sensor and actuator interfaces
• Smart home hubs: for managing GPIO for buttons, LEDs, and relays
• Medical devices: for patient monitoring equipment requiring additional I/O

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TCA9539RGER. 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

TCA9539RGER 是德州儀器（TI）推出的一款 16 位 I2C 匯流排和 SMBus I/O 擴展器，支援 1.65 V 至 5.5 V 的 VCC 工作電壓。它通過 I2C 介面（串列時鐘 SCL 和串列資料 SDA）為大多數微控制器系列提供通用遠端 I/O 擴展。該器件具有中斷輸出（INT），可連接到微控制器的中斷邏輯，當任何輸入狀態與其對應的輸入埠暫存器狀態不同時，會發送中斷信號。TCA9539RGER 採用緊湊的 24 引腳 VQFN（4x4 mm）封裝，非常適合空間受限的應用。

詳細技術參數

核心特性

• 16 位雙向 I/O 埠
• I2C 匯流排介面，時脈頻率高達 400 kHz
• 開漏極低電平有效中斷輸出
• 三個硬體位址引腳，同一匯流排上最多支援 8 個器件
• 低待機電流消耗
• 上電復位，所有 I/O 設置為輸入
• 上電無突波
• 斷電模式下 I/O 可承受 5 V 電壓
• 閂鎖性能超過 100 mA，符合 JESD 78 Class II 標準

典型應用場景

• 5G 基站：用於監控和控制功率放大器、風扇及狀態指示燈
• 汽車儀錶板：用於讀取開關輸入和控制指示燈
• 工業 PLC：用於擴展感測器和執行器介面的數位 I/O
• 智慧家庭中樞：用於管理按鈕、LED 和繼電器的 GPIO
• 醫療設備：用於需要額外 I/O 的病人監護設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TCA9539RGER 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]