TCAL9539RTWR TI I2C I/O Expander | 24-WQFN (4x4) | 16-bit, 1.65-5.5V

Product Overview

The TCAL9539RTWR from Texas Instruments is a 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface. The device features a 16-bit I/O port consisting of two 8-bit ports (P0 and P1). The TCAL9539RTWR can operate from 1.65 V to 5.5 V, making it suitable for a wide range of applications. It is available in a compact 24-pin WQFN (4x4 mm) package.

Detailed Technical Specifications

Key Features

• 16-bit bidirectional I/O ports
• I2C bus interface with up to 400 kHz clock frequency
• Five hardware address pins allow up to 32 devices on the bus
• Open-drain interrupt output
• Low standby current consumption
• Power-on reset with all channels set as inputs
• No glitch on power-up
• Schmitt-trigger action allows slow input transition
• Package: 24-pin WQFN (4x4 mm)

Target Applications

• 5G base stations: control and status monitoring of power amplifiers, fans, and LEDs
• Automotive dashboard: reading switch inputs and controlling indicator LEDs
• Industrial PLCs: expanding digital I/O for sensor and actuator interfaces
• Server motherboards: monitoring temperature sensors and controlling fan speeds
• Consumer electronics: keypad scanning and LED control in smart home devices

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TCAL9539RTWR. 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

TCAL9539RTWR 是德州儀器（TI）推出的16位I2C總線和SMBus I/O擴展器，具有中斷輸出和配置寄存器。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。該器件具有兩個8位端口（P0和P1）組成的16位I/O端口。TCAL9539RTWR 可在1.65 V至5.5 V電壓範圍內工作，適用於多種應用。它採用緊湊的24引腳WQFN（4x4 mm）封裝。

詳細技術參數

核心特性

• 16位雙向I/O端口
• I2C總線接口，時鐘頻率高達400 kHz
• 5個硬件地址引腳，最多支持32個器件掛載在同一總線上
• 開漏中斷輸出
• 低待機電流消耗
• 上電復位，所有通道默認為輸入
• 上電無毛刺
• 施密特觸發器動作允許緩慢輸入轉換
• 封裝：24引腳WQFN（4x4 mm）

典型應用場景

• 5G基站：功率放大器、風扇和LED的控制與狀態監測
• 汽車儀表盤：讀取開關輸入和控制指示燈
• 工業PLC：擴展數字I/O用於傳感器和執行器接口
• 服務器主板：監測溫度傳感器和控制風扇轉速
• 消費電子：智能家居設備中的鍵盤掃描和LED控制

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TCAL9539RTWR 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]