PCA9544AGQNR TI Multiplexer | 20-BGAMICROSTARJUNIOR（4X3） | 4-Channel, I2C Bus

Product Overview

The PCA9544AGQNR from Texas Instruments is a 4-channel I2C-bus multiplexer with interrupt logic. It allows selective connection of up to four I2C slave devices to a single I2C master bus, enabling flexible system design. The device operates from 2.3V to 5.5V and supports standard (100 kHz) and fast (400 kHz) I2C modes. Housed in a compact 20-pin BGA MICROSTAR JUNIOR package (4x3 mm), it is ideal for space-constrained applications.

Detailed Technical Specifications

Key Features

• 4-channel I2C-bus multiplexer with interrupt logic
• Allows voltage level translation between 2.3V and 5.5V
• Low standby current (<1 µA)
• Active-low interrupt output with open-drain configuration
• Compatible with SMBus
• Small footprint package saves board space

Target Applications

• 5G base stations: Multiplexing I2C sensors for temperature and power monitoring
• Automotive dashboard: Connecting multiple display controllers and touch ICs
• Industrial automation: Managing I2C-based ADCs and DACs in PLC modules
• Consumer electronics: Smart speakers with multiple audio codecs

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for PCA9544AGQNR. 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

PCA9544AGQNR 是德州儀器（TI）推出的4通道I2C匯流排多工器，具備中斷邏輯功能。它允許將最多四個I2C從設備選擇性地連接到單一I2C主匯流排，實現靈活的系統設計。該器件工作電壓範圍為2.3V至5.5V，支持標準（100 kHz）和快速（400 kHz）I2C模式。採用緊湊的20引腳BGA MICROSTAR JUNIOR封裝（4x3 mm），非常適合空間受限的應用。

詳細技術參數

核心特性

• 4通道I2C匯流排多工器，帶中斷邏輯
• 支持2.3V至5.5V的電壓位準轉換
• 低待機電流（<1 µA）
• 低電平有效中斷輸出，開漏配置
• 兼容SMBus
• 小尺寸封裝節省電路板空間

典型應用場景

• 5G基站：多工連接溫度及電源監控I2C傳感器
• 汽車儀表板：連接多個顯示控制器和觸控IC
• 工業自動化：在PLC模組中管理基於I2C的ADC和DAC
• 消費電子：智能音箱中的多個音頻編解碼器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 PCA9544AGQNR 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]