PCF8575PW TI I2C I/O Expander | 24-TSSOP | 16-bit, 2.3V-5.5V

Product Overview

The PCF8575PW from Texas Instruments is a 16-bit I/O expander for I2C-bus applications, providing general-purpose remote I/O expansion for most microcontroller families via the two-line bidirectional I2C bus (serial clock (SCL) and serial data (SDA)). The device features a 16-bit quasi-bidirectional input/output (I/O) port, including latched outputs with high-current drive capability for directly driving LEDs. The PCF8575PW operates from a supply voltage range of 2.3 V to 5.5 V, making it suitable for a wide variety of applications. It is available in a compact 24-pin TSSOP package.

Detailed Technical Specifications

Key Features

• 16-bit remote I/O expander for I2C-bus
• Quasi-bidirectional I/O ports
• High-current drive capability (25 mA sink, 10 mA source)
• Low standby current consumption
• Operating supply voltage: 2.3 V to 5.5 V
• 5 V tolerant I/Os
• Address by three hardware address pins (up to 8 devices on bus)
• Open-drain active-low interrupt output
• Internal power-on reset
• No glitch on power-up
• ESD protection exceeds 2000 V HBM per JESD22-A114

Target Applications

• 5G base station control and monitoring (e.g., fan control, status LED)
• Automotive dashboard switch and indicator control
• Industrial PLC I/O expansion
• Server and telecom equipment front panel control
• Home automation (smart lighting, sensor interfaces)
• Portable electronics (keypad scanning, GPIO expansion)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for PCF8575PW. 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

PCF8575PW 是德州儀器 (TI) 推出的一款 16 位 I/O 擴展器，用於 I2C 總線應用。它通過雙向 I2C 總線（串行時鐘 SCL 和串行數據 SDA）為大多數微控制器系列提供通用遠程 I/O 擴展。該器件具有一個 16 位準雙向輸入/輸出 (I/O) 端口，包括帶高電流驅動能力的鎖存輸出，可直接驅動 LED。PCF8575PW 的工作電源電壓範圍為 2.3 V 至 5.5 V，適用於多種應用。它採用緊湊的 24 引腳 TSSOP 封裝。

詳細技術參數

核心特性

• 用於 I2C 總線的 16 位遠程 I/O 擴展器
• 準雙向 I/O 端口
• 高電流驅動能力（灌電流 25 mA，拉電流 10 mA）
• 低待機電流消耗
• 工作電源電壓：2.3 V 至 5.5 V
• 5 V 容限 I/O
• 通過三個硬件地址引腳尋址（總線上最多 8 個器件）
• 開漏低電平有效中斷輸出
• 內部上電復位
• 上電無毛刺
• ESD 保護超過 2000 V HBM（符合 JESD22-A114）

典型應用場景

• 5G 基站控制與監控（例如風扇控制、狀態指示燈）
• 汽車儀表板開關和指示燈控制
• 工業 PLC I/O 擴展
• 服務器和電信設備前面板控制
• 家庭自動化（智能照明、傳感器接口）
• 便攜式電子設備（鍵盤掃描、GPIO 擴展）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 PCF8575PW 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]