TCA9535RTWR TI I2C GPIO Expander | 24-WQFN (4x4) | 16-bit, 2.3V-5.5V

Product Overview

The TCA9535RTWR from Texas Instruments is a 16-bit I2C-bus and SMBus I/O expander designed for 2.3-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 TCA9535RTWR is available in a compact 24-pin WQFN (4x4 mm) package, making it ideal for space-constrained applications.

Detailed Technical Specifications

Key Features

• 16-bit bidirectional I/O expander
• I2C interface with up to 400 kHz clock frequency
• Open-drain active-low interrupt output
• Three hardware address pins (up to 8 devices on bus)
• Low standby current consumption
• Power-up with all channels configured as inputs
• No glitch on power-up
• 5-V tolerant I/Os
• ESD protection exceeds JESD 22

Target Applications

• 5G base station: control and status monitoring of power amplifiers and filters
• Automotive dashboard: reading switch inputs and controlling LEDs
• Industrial PLC: expanding digital I/O for sensor and actuator interfaces
• Smart home hub: GPIO expansion for sensors and relays
• Medical equipment: patient monitoring system I/O expansion

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TCA9535RTWR. 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.
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• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

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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

TCA9535RTWR 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 2.3 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。TCA9535RTWR 採用緊湊的 24 引腳 WQFN (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 擴展器
• I2C 介面，時鐘頻率高達 400 kHz
• 開漏低電平有效中斷輸出
• 三個硬體位址引腳 (匯流排上最多 8 個器件)
• 低待機電流消耗
• 上電時所有通道配置為輸入
• 上電無突波
• 5 V 容限 I/O
• ESD 保護超過 JESD 22 標準

典型應用場景

• 5G 基地台：功率放大器和濾波器的控制與狀態監控
• 汽車儀錶板：讀取開關輸入和控制 LED
• 工業 PLC：擴展數位 I/O 用於感測器和執行器介面
• 智慧家庭中樞：感測器和繼電器的 GPIO 擴展
• 醫療設備：病人監護系統的 I/O 擴展

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TCA9535RTWR 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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