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Product Overview
The PCA9546ADW from Texas Instruments is a 4-channel I2C multiplexer designed for voltage level translation and bus isolation. It allows multiple I2C devices with the same address to be connected to a single I2C bus by selecting one channel at a time. Operating from 2.3V to 5.5V, it supports standard I2C communication and is ideal for systems requiring flexible bus management.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
4 |
| Supply Voltage (VCC) |
2.3V to 5.5V |
| I2C Bus Voltage |
1.8V, 2.5V, 3.3V, 5V (via VCC) |
| Operating Temperature |
-40°C to +85°C |
| Package |
16-SOIC |
| Standby Current |
1 µA (typical) |
| Reset Function |
Active LOW reset (RESET) |
Key Features
- 4 bidirectional translating switches
- I2C bus interface with address selection via A0/A1/A2 pins
- Active LOW reset input
- Power-on with all channels deselected
- Low standby current
- Supports hot insertion
Target Applications
- 5G base station: Multiplexing multiple sensor modules (e.g., temperature, humidity) on a single I2C bus
- Automotive dashboard: Connecting multiple display controllers or touch ICs
- Industrial control: Isolating I2C buses for different subsystems
- Consumer electronics: Managing multiple I2C peripherals in smart home hubs
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
PCA9546ADW. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
PCA9546ADW 是德州儀器 (TI) 推出的 4 通道 I2C 多路復用器,專為電壓位準轉換和匯流排隔離而設計。它允許將多個具有相同位址的 I2C 設備連接到單一 I2C 匯流排,每次僅選擇一個通道。工作電壓範圍為 2.3V 至 5.5V,支援標準 I2C 通訊,非常適合需要靈活匯流排管理的系統。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
4 |
| 電源電壓 (VCC) |
2.3V 至 5.5V |
| I2C 匯流排電壓 |
1.8V, 2.5V, 3.3V, 5V (通過 VCC) |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
16-SOIC |
| 待機電流 |
1 µA (典型值) |
| 復位功能 |
低電平有效復位 (RESET) |
核心特性
- 4 個雙向轉換開關
- I2C 匯流排介面,通過 A0/A1/A2 引腳選擇位址
- 低電平有效復位輸入
- 上電時所有通道取消選中
- 低待機電流
- 支援熱插拔
典型應用場景
- 5G 基地台:將多個感測器模組(如溫度、濕度)複用至單一 I2C 匯流排
- 汽車儀表板:連接多個顯示控制器或觸控 IC
- 工業控制:隔離不同子系統的 I2C 匯流排
- 消費電子:在智慧家庭中樞中管理多個 I2C 周邊設備
環球供應鏈與批發合作夥伴方案
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我們的核心優勢包括:
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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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