TCA9539AQPWRQ1 TI I2C GPIO Expander | 24-TSSOP | 16-bit, 2.3-5.5V

Product Overview

The TCA9539AQPWRQ1 from Texas Instruments is a 16-bit I2C-bus and SMBus I/O expander designed for automotive applications. 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 microcontroller's interrupt input, alerting the system of input changes without polling. Three hardware address pins (A0, A1, A2) allow up to eight devices on the same bus, expanding I/O capability up to 128 bits. The TCA9539AQPWRQ1 is qualified to AEC-Q100 for automotive applications and operates over a wide temperature range of -40°C to +125°C.

Detailed Technical Specifications

Key Features

• 16-bit bidirectional I/O ports with I2C interface
• Three hardware address pins allow up to 8 devices on bus
• Open-drain active-low interrupt output
• Input/output configuration register
• Polarity inversion register
• Internal power-on reset
• No glitch on power-up
• Low standby current consumption
• Schmitt-trigger action allows slow input transition
• 5 V tolerant I/Os
• Automotive grade: AEC-Q100

Target Applications

• Automotive body control modules (e.g., door modules, seat control)
• Infotainment systems (e.g., dashboard displays, steering wheel controls)
• Advanced driver-assistance systems (ADAS) sensor interfaces
• 5G base station control and monitoring
• Industrial automation (e.g., PLC I/O expansion)
• Server and telecom equipment (e.g., fan control, status LEDs)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TCA9539AQPWRQ1. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
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• 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

TCA9539AQPWRQ1 是德州儀器 (TI) 推出的 16 位 I2C 匯流排和 SMBus I/O 擴展器，專為汽車應用設計。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輸入，無需輪詢即可通知系統輸入變化。三個硬體位址引腳 (A0, A1, A2) 允許同一匯流排上最多八個器件，將 I/O 能力擴展至 128 位。TCA9539AQPWRQ1 通過 AEC-Q100 汽車應用認證，工作溫度範圍為 -40°C 至 +125°C。

詳細技術參數

核心特性

• 16 位雙向 I/O 端口，帶 I2C 介面
• 三個硬體位址引腳，匯流排上最多 8 個器件
• 開漏極低電平有效中斷輸出
• 輸入/輸出配置寄存器
• 極性反轉寄存器
• 內部上電復位
• 上電無毛刺
• 低待機電流消耗
• 施密特觸發動作允許慢輸入轉換
• 5 V 容忍 I/O
• 汽車級：AEC-Q100

典型應用場景

• 汽車車身控制模組（例如車門模組、座椅控制）
• 資訊娛樂系統（例如儀表板顯示、方向盤控制）
• 先進駕駛輔助系統 (ADAS) 感測器介面
• 5G 基地台控制與監控
• 工業自動化（例如 PLC I/O 擴展）
• 伺服器和電信設備（例如風扇控制、狀態 LED）

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