PCA9545AGQNR TI Multiplexer IC | 20-BGAMICROSTARJUNIOR（4X3） | 4-Channel, I2C

Product Overview

The PCA9545AGQNR from Texas Instruments is a 4-channel I2C-bus multiplexer with reset and interrupt logic. It allows voltage level translation between different I2C-bus segments, enabling multiple devices with the same address to be connected to a single I2C master. The device operates from 2.3V to 5.5V and is available in a compact 20-pin BGA MICROSTAR JUNIOR package (4x3 mm).

Detailed Technical Specifications

Key Features

• 4-channel I2C-bus multiplexer
• Allows voltage level translation (1.8V, 2.5V, 3.3V, 5V)
• Active LOW reset input
• Three address pins (up to 8 devices on bus)
• Interrupt output for each channel
• Low standby current

Target Applications

• 5G base stations: multiplexing I2C sensors for power management
• Automotive dashboard: connecting multiple displays and touch controllers
• Industrial control: managing multiple I2C temperature sensors
• Data centers: monitoring server health via I2C
• Consumer electronics: smart home hubs with multiple I2C devices

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for PCA9545AGQNR. 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

PCA9545AGQNR 是德州儀器（TI）推出的4通道I2C匯流排多工器，具備重置和中斷邏輯功能。它支援不同I2C匯流排段之間的電壓位準轉換，使多個相同位址的設備可連接到單一I2C主控器。工作電壓範圍為2.3V至5.5V，採用緊湊的20引腳BGA MICROSTAR JUNIOR封裝（4x3 mm）。

詳細技術參數

核心特性

• 4通道I2C匯流排多工器
• 支援電壓位準轉換（1.8V、2.5V、3.3V、5V）
• 低電平有效重置輸入
• 三個位址引腳（最多8個設備掛載匯流排）
• 每個通道的中斷輸出
• 低待機電流

典型應用場景

• 5G基地台：多工管理電源管理I2C感測器
• 汽車儀表板：連接多個顯示器和觸控控制器
• 工業控制：管理多個I2C溫度感測器
• 數據中心：透過I2C監控伺服器健康狀態
• 消費電子：智慧家庭中樞連接多個I2C設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 PCA9545AGQNR 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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• 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。

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• 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。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
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