CD74HCT257E TI Multiplexer | 16-PDIP | 4-Channel, 2-Input, TTL Compatible

Product Overview

The CD74HCT257E from Texas Instruments is a high-speed CMOS quad 2-input multiplexer with common select and enable controls. It features TTL-compatible inputs and outputs, making it ideal for interfacing with TTL logic families. The device operates over a wide voltage range of 4.5V to 5.5V and is offered in a 16-pin PDIP package. It provides four multiplexer channels, each selecting one of two data inputs based on the select input (S). The output enable (OE) input, when high, forces all outputs to a high-impedance state, allowing for bus-oriented applications.

Detailed Technical Specifications

Key Features

• Quad 2-input multiplexer with common select and enable
• TTL-compatible inputs and outputs
• High-speed CMOS technology
• Low power consumption: 80µA (max) ICC
• High-impedance outputs when OE is high
• Wide operating temperature range
• Industry-standard 16-pin PDIP package

Target Applications

• Data routing in 5G base station control boards
• Signal selection in automotive dashboard displays
• Bus multiplexing in industrial PLCs
• Input expansion for microcontroller systems
• Digital switching in test and measurement equipment

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for CD74HCT257E. 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

CD74HCT257E 是德州儀器 (TI) 生產的高速 CMOS 四路 2 輸入多路復用器，具有公共選擇和使能控制。其輸入和輸出與 TTL 兼容，非常適合與 TTL 邏輯系列接口。該器件在 4.5V 至 5.5V 的寬電壓範圍內工作，採用 16 引腳 PDIP 封裝。它提供四個多路復用通道，每個通道根據選擇輸入 (S) 選擇兩個數據輸入之一。輸出使能 (OE) 輸入為高電平時，所有輸出變為高阻抗狀態，適用於總線應用。

詳細技術參數

核心特性

• 四路 2 輸入多路復用器，帶公共選擇和使能
• TTL 兼容輸入和輸出
• 高速 CMOS 技術
• 低功耗：最大 ICC 80µA
• OE 為高電平時輸出高阻抗
• 寬工作溫度範圍
• 業界標準 16-PDIP 封裝

典型應用場景

• 5G 基站控制板中的數據路由
• 汽車儀表盤顯示中的信號選擇
• 工業 PLC 中的總線多路復用
• 微控制器系統的輸入擴展
• 測試與測量設備中的數字切換

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 CD74HCT257E 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]