PCA9545AZQNR TI Multiplexer IC | 20-BGAMICROSTARJUNIOR（4X3） | 4-Channel, I2C

Product Overview

The PCA9545AZQNR is a 4-channel I2C-bus multiplexer from Texas Instruments, designed to provide selective communication between a master I2C device and multiple slave devices. It allows voltage level translation between 1.8V, 2.5V, 3.3V, and 5V buses, making it ideal for multi-voltage systems. Housed in a compact 20-ball BGA MICROSTAR JUNIOR package (4x3 mm), it offers low power consumption and high reliability for space-constrained applications.

Detailed Technical Specifications

Key Features

• 4-channel I2C-bus multiplexer with active-low reset input
• Voltage level translation between different I2C bus voltages
• Low standby current (1.5 µA typical)
• Power-up with all channels deselected
• Noise filter on SCL/SDA inputs
• Supports hot insertion
• Small footprint package (4x3 mm BGA)

Target Applications

• 5G base station control boards (e.g., for managing multiple sensor modules)
• Automotive dashboard display systems (e.g., connecting multiple I2C peripherals)
• Industrial automation PLC modules (e.g., multiplexing I2C temperature sensors)
• Consumer electronics like smart speakers (e.g., audio codec and touch controller selection)
• Medical devices (e.g., patient monitoring systems with multiple I2C sensors)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for PCA9545AZQNR. 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

PCA9545AZQNR 是德州儀器（TI）推出的4通道I2C總線多路復用器，用於在主I2C設備與多個從設備之間實現選擇性通信。它支持1.8V、2.5V、3.3V和5V總線之間的電壓轉換，非常適合多電壓系統。採用緊湊的20球BGA MICROSTAR JUNIOR封裝（4x3 mm），功耗低，可靠性高，適用於空間受限的應用。

詳細技術參數

核心特性

• 4通道I2C總線多路復用器，帶有低電平有效復位輸入
• 不同I2C總線電壓之間的電平轉換
• 低待機電流（典型值1.5 µA）
• 上電時所有通道均未選中
• SCL/SDA輸入上的噪聲濾波器
• 支持熱插拔
• 小尺寸封裝（4x3 mm BGA）

典型應用場景

• 5G基站控制板（例如，管理多個傳感器模塊）
• 汽車儀表盤顯示系統（例如，連接多個I2C外設）
• 工業自動化PLC模塊（例如，多路復用I2C溫度傳感器）
• 消費電子產品如智能音箱（例如，音頻編解碼器和觸控控制器選擇）
• 醫療設備（例如，帶有多個I2C傳感器的病人監護系統）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 PCA9545AZQNR 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]