TCA6418EYFPR TI I2C I/O Expander | 25-DSBGA | 18-bit, 1.65-5.5V

Product Overview

The TCA6418EYFPR from Texas Instruments is a 18-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 18-bit configuration register for input, output, and polarity inversion selection. The system master can enable the I/Os as either inputs or outputs by writing to the configuration register. The data for each input or output is kept in the corresponding input or output register. The polarity of the input port register can be inverted with the polarity inversion register. The TCA6418EYFPR is available in a 25-ball DSBGA package (YFP), which is lead-free and RoHS compliant.

Detailed Technical Specifications

Key Features

• 18-bit I2C-bus I/O expander with three address pins (up to 8 devices on bus)
• Operating supply voltage range: 1.65 V to 5.5 V
• Low standby current consumption: 1.5 µA typical
• I2C interface supports Standard (100 kHz) and Fast (400 kHz) modes
• Active-low interrupt output (INT) to notify the host of input changes
• Polarity inversion register to invert input data
• Open-drain active-low reset input (RESET)
• No glitch on power-up; internal power-on reset
• 5-V tolerant I/Os in 1.8-V, 2.5-V, or 3.3-V systems
• Package: 25-ball DSBGA (YFP) with 0.5-mm pitch

Target Applications

• 5G base station: Control and status monitoring of power amplifiers, fans, and LEDs
• Automotive dashboard: Reading buttons, switches, and controlling indicator LEDs
• Industrial PLC: Expanding digital I/O for sensor inputs and actuator outputs
• Server/telecom equipment: Monitoring system health (temperature, voltage) via GPIO
• 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 TCA6418EYFPR. 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

TCA6418EYFPR 是德州儀器 (TI) 推出的一款 18 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。該器件具有一個 18 位配置寄存器，用於選擇輸入、輸出和極性反轉。系統主機可以通過寫入配置寄存器將 I/O 設置為輸入或輸出。每個輸入或輸出的資料保存在相應的輸入或輸出寄存器中。輸入埠寄存器的極性可以通過極性反轉寄存器反轉。TCA6418EYFPR 採用 25 球 DSBGA 封裝 (YFP)，無鉛且符合 RoHS 標準。

詳細技術參數

核心特性

• 18 位 I2C 匯流排 I/O 擴展器，帶三個位址引腳（最多 8 個器件掛載在同一匯流排上）
• 工作電源電壓範圍：1.65 V 至 5.5 V
• 低待機電流消耗：典型值 1.5 µA
• I2C 介面支援標準 (100 kHz) 和快速 (400 kHz) 模式
• 低電平有效中斷輸出 (INT)，通知主機輸入變化
• 極性反轉寄存器，可反轉輸入資料
• 開漏低電平有效復位輸入 (RESET)
• 上電無毛刺；內部上電復位
• 在 1.8 V、2.5 V 或 3.3 V 系統中，I/O 可耐受 5 V 電壓
• 封裝：25 球 DSBGA (YFP)，0.5 mm 間距

典型應用場景

• 5G 基站：控制並監測功率放大器、風扇和 LED 的狀態
• 汽車儀錶盤：讀取按鈕、開關，並控制指示燈
• 工業 PLC：擴展數位 I/O，用於感測器輸入和執行器輸出
• 伺服器/電信設備：通過 GPIO 監測系統健康狀態（溫度、電壓）
• 消費電子：智慧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 TCA6418EYFPR 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。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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