SN74HCT257D TI Multiplexer | 16-SOIC | 4-Channel, 2-Input

Product Overview

The SN74HCT257D from Texas Instruments is a high-speed CMOS quad 2-input multiplexer with 3-state outputs. It features four multiplexers, each selecting one of two data inputs (A or B) based on a common select input (S). The outputs are enabled by an output enable input (OE). When OE is high, all outputs are in the high-impedance state. This device operates with a supply voltage range of 4.5V to 5.5V and is compatible with TTL levels. It is housed in a 16-pin SOIC package, making it suitable for space-constrained applications.

Detailed Technical Specifications

Key Features

• Quad 2-input multiplexer with 3-state outputs
• TTL input compatible
• Low power consumption: ICC typically 8 µA
• High noise immunity: VNIH = VNIL = 28% of VCC
• Outputs can drive up to 10 LSTTL loads
• Balanced propagation delays
• ESD protection exceeds 2000 V per MIL-STD-883, Method 3015

Target Applications

The SN74HCT257D is ideal for data routing and signal selection in various systems. Specific applications include:

• 5G base station control logic for antenna path selection
• Automotive dashboard display data multiplexing
• Industrial PLC input/output module signal routing
• Medical imaging equipment data acquisition
• Consumer electronics like smart home hubs for sensor selection

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74HCT257D. 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

SN74HCT257D 是德州儀器（TI）生產的高速 CMOS 四路 2 輸入多路復用器，具有三態輸出。它包含四個多路復用器，每個根據公共選擇輸入（S）選擇兩個數據輸入（A 或 B）之一。輸出由輸出使能輸入（OE）控制；當 OE 為高電平時，所有輸出處於高阻抗狀態。該器件的工作電源電壓範圍為 4.5V 至 5.5V，與 TTL 電平兼容。採用 16 引腳 SOIC 封裝，適合空間受限的應用。

詳細技術參數

核心特性

• 四路 2 輸入多路復用器，帶三態輸出
• TTL 輸入兼容
• 低功耗：ICC 典型值 8 µA
• 高抗噪能力：VNIH = VNIL = 28% VCC
• 輸出可驅動多達 10 個 LSTTL 負載
• 平衡的傳播延遲
• ESD 保護超過 2000 V（符合 MIL-STD-883 方法 3015）

典型應用場景

SN74HCT257D 適用於各種系統中的數據路由和信號選擇。具體應用包括：

• 5G 基站控制邏輯中的天線路徑選擇
• 汽車儀表板顯示數據多路復用
• 工業 PLC 輸入/輸出模塊的信號路由
• 醫療成像設備的數據採集
• 消費電子產品如智能家居中樞的傳感器選擇

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74HCT257D 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。
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• 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。
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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
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