PCA9543AD TI I2C Multiplexer | 14-SOIC | 2-Channel, 2.3V-5.5V

Product Overview

The PCA9543AD from Texas Instruments is a 2-channel bidirectional translating I2C multiplexer/switch with an active-low reset input. It allows voltage level translation between 2.3V and 5.5V, enabling I2C communication between devices operating at different voltages. The device is controlled via the I2C bus and supports standard (100 kHz) and fast (400 kHz) I2C modes. Housed in a compact 14-SOIC package, it is ideal for applications requiring multiple I2C buses or voltage translation.

Detailed Technical Specifications

Key Features

• 2-channel bidirectional I2C multiplexer/switch
• Voltage level translation from 2.3V to 5.5V
• Active-low reset input
• Low quiescent current (2.5 µA typical)
• Supports standard and fast I2C modes
• No glitch on power-up
• ESD protection exceeds 2 kV HBM
• Small 14-SOIC package

Target Applications

• 5G base stations: Multiplexing I2C buses for monitoring multiple power modules
• Automotive dashboard: Connecting multiple sensors and displays on separate I2C buses
• Industrial control: Isolating I2C segments for fault tolerance
• Telecommunications: Managing I2C devices in line cards
• Medical equipment: Interfacing with multiple I2C-based sensors

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for PCA9543AD. 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

PCA9543AD 是德州儀器（TI）推出的雙通道雙向轉換 I2C 多路復用器/開關，帶有低電平有效復位輸入。它支持 2.3V 至 5.5V 的電壓轉換，使不同電壓的 I2C 設備能夠通信。該器件通過 I2C 總線控制，支持標準（100 kHz）和快速（400 kHz）模式。採用緊湊的 14-SOIC 封裝，適用於需要多路 I2C 總線或電壓轉換的應用。

詳細技術參數

核心特性

• 雙通道雙向 I2C 多路復用器/開關
• 電壓轉換範圍 2.3V 至 5.5V
• 低電平有效復位輸入
• 低靜態電流（典型值 2.5 µA）
• 支持標準和快速 I2C 模式
• 上電無毛刺
• ESD 保護超過 2 kV HBM
• 小型 14-SOIC 封裝

典型應用場景

• 5G 基站：多路復用 I2C 總線以監控多個電源模塊
• 汽車儀表板：連接不同 I2C 總線上的多個傳感器和顯示器
• 工業控制：隔離 I2C 段以實現容錯
• 電信設備：管理線卡中的 I2C 設備
• 醫療設備：與多個基於 I2C 的傳感器接口

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 PCA9543AD 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]