TCA6416AZQSRREEL TI I2C I/O Expander | 16-bit, 1.65-5.5V

Product Overview

The TCA6416AZQSRREEL from Texas Instruments is a 16-bit I2C-bus 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 microcontroller's interrupt input, alerting the microcontroller of input changes without polling. The TCA6416A is identical to the TCA6416 except that the TCA6416A has an active-low reset input (RESET).

Detailed Technical Specifications

Key Features

• 16-bit bidirectional I/O ports
• I2C interface with up to 400 kHz clock frequency
• Active-low reset input (RESET)
• Open-drain active-low interrupt output (INT)
• Three hardware address pins (A0, A1, A2) allow up to 8 devices on the same bus
• Low standby current consumption
• Power-on reset with all channels set as inputs
• 5-V tolerant I/O pins
• No glitch on power-up
• Supports hot insertion

Target Applications

• 5G base stations: monitoring and controlling power supply modules, fan speeds, and status LEDs
• Automotive dashboard: reading switch inputs (e.g., steering wheel controls) and driving indicator LEDs
• Industrial PLCs: expanding digital I/O for sensor and actuator interfaces
• Server motherboards: managing GPIO for system status and configuration
• Consumer electronics: keypad scanning and LED control in smart home hubs

Global Supply Chain & Wholesale Solutions

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• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

TCA6416AZQSRREEL 是德州儀器 (TI) 的一款 16 位 I2C 匯流排 I/O 擴展器，工作電壓範圍為 1.65 V 至 5.5 V。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，無需輪詢即可通知微控制器輸入變化。TCA6416A 與 TCA6416 相同，但 TCA6416A 具有低電平有效重定輸入 (RESET)。

詳細技術參數

核心特性

• 16 位雙向 I/O 埠
• I2C 介面，時鐘頻率最高 400 kHz
• 低電平有效重定輸入 (RESET)
• 開漏低電平有效中斷輸出 (INT)
• 三個硬體位址引腳 (A0, A1, A2)，同一匯流排上最多支援 8 個器件
• 低待機電流消耗
• 上電重定，所有通道預設為輸入
• I/O 引腳可承受 5 V 電壓
• 上電無突波
• 支援熱插入

典型應用場景

• 5G 基地台：監控和控制電源模組、風扇轉速及狀態 LED
• 汽車儀錶板：讀取開關輸入（如方向盤控制）並驅動指示燈
• 工業 PLC：擴展數位 I/O 以連接感測器和執行器
• 伺服器主機板：管理 GPIO 以實現系統狀態和配置
• 消費電子：智慧家庭中樞的鍵盤掃描和 LED 控制

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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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