PCF8574ADGVR TI I2C I/O Expander | 20-TVSOP | 8-bit, 400kHz

Product Overview

The PCF8574ADGVR from Texas Instruments is a remote 8-bit I/O expander for I2C-bus. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface. The device features an 8-bit quasi-bidirectional I/O port, an I2C-bus interface, and three address lines allowing up to eight devices on the same bus. It operates from a 2.5V to 6V supply and supports up to 400kHz I2C clock frequency. The package is a 20-pin TVSOP (Thin Very Small Outline Package), ideal for space-constrained applications.

Detailed Technical Specifications

Key Features

• 8-bit quasi-bidirectional I/O port
• I2C-bus interface with 3 address lines (8 addresses)
• Low standby current consumption
• Open-drain interrupt output
• Input latch capability
• No external components required
• Compatible with most microcontrollers

Target Applications

• 5G base station control boards (e.g., antenna tilt control)
• Automotive dashboard displays (e.g., button matrix scanning)
• Industrial PLC I/O expansion
• Smart home hubs (e.g., sensor input)
• Medical devices (e.g., patient monitor keypad)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for PCF8574ADGVR. 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

PCF8574ADGVR 是德州儀器（TI）推出的遠程8位I/O擴展器，用於I2C總線。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8位準雙向I/O端口、I2C總線接口和三個地址線，允許在同一總線上最多連接八個器件。工作電壓範圍為2.5V至6V，支持高達400kHz的I2C時鐘頻率。封裝為20引腳TVSOP（超薄小外形封裝），適用於空間受限的應用。

詳細技術參數

核心特性

• 8位準雙向I/O端口
• I2C總線接口，帶3個地址線（8個地址）
• 低待機電流消耗
• 開漏中斷輸出
• 輸入鎖存功能
• 無需外部元件
• 與大多數微控制器兼容

典型應用場景

• 5G基站控制板（例如天線傾角控制）
• 汽車儀表盤顯示（例如按鍵矩陣掃描）
• 工業PLC I/O擴展
• 智能家居中樞（例如傳感器輸入）
• 醫療設備（例如病人監護儀鍵盤）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 PCF8574ADGVR 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]