M74HC251B1R ST Multiplexer | 16-DIP | 8-Channel, 3-State Output

Product Overview

The M74HC251B1R is a high-speed CMOS 8-channel multiplexer with 3-state outputs manufactured by STMicroelectronics. It features eight data inputs, three binary select inputs, an enable input, and a complementary output. The device operates from a 2V to 6V supply voltage, making it suitable for a wide range of digital applications. The 3-state outputs allow connection to bus-oriented systems, and the device is pin-compatible with the TTL 74LS251.

Detailed Technical Specifications

Key Features

• High-speed: tPD = 14 ns (typ) at VCC=5V
• Low power dissipation: ICC = 4 µA (max) at TA=25°C
• 3-state outputs for bus-oriented systems
• Complementary output (Y and Y̅)
• Enable input for multiplexer expansion
• Pin and function compatible with 74LS251
• ESD protection: 2 kV HBM

Target Applications

The M74HC251B1R is ideal for data routing and signal selection in digital systems. Specific applications include:

• 5G base station control logic: selecting status signals from multiple sensors
• Automotive dashboard display: multiplexing data from various vehicle modules
• Industrial PLCs: input channel selection for analog-to-digital converters
• Consumer electronics: mode selection in set-top boxes
• Telecommunications: data path switching in routers

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for M74HC251B1R. 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

M74HC251B1R是意法半导体（STMicroelectronics）生产的高速CMOS 8通道多路复用器，具有三态输出。该器件包含八个数据输入、三个二进制选择输入、一个使能输入和一个互补输出。工作电压范围为2V至6V，适用于多种数字应用。三态输出使其可连接总线系统，且引脚兼容TTL 74LS251。

詳細技術參數

核心特性

• 高速：tPD = 14 ns (典型值) 在 VCC=5V
• 低功耗：ICC = 4 µA (最大值) 在 TA=25°C
• 三態輸出，適用於總線系統
• 互補輸出 (Y 和 Y̅)
• 使能輸入，便於多路復用器擴展
• 引腳和功能兼容 74LS251
• ESD 保護：2 kV HBM

典型應用場景

M74HC251B1R 適用於數字系統中的數據路由和信號選擇。具體應用包括：

• 5G基站控制邏輯：從多個傳感器中選擇狀態信號
• 汽車儀表盤顯示：多路復用來自不同車輛模塊的數據
• 工業PLC：模數轉換器的輸入通道選擇
• 消費電子：機頂盒的模式選擇
• 電信：路由器中的數據路徑切換

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 M74HC251B1R 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]