SN74LS21D TI Logic Gates | 14-SOIC | Dual 4-Input AND Gate

Product Overview

The SN74LS21D is a dual 4-input positive-AND gate from Texas Instruments, part of the 74LS family of low-power Schottky logic devices. It integrates two independent AND gates, each with four inputs, in a compact 14-pin SOIC package. This device is designed for high-speed logic operations with low power consumption, making it suitable for a wide range of digital applications.

Detailed Technical Specifications

Key Features

• Dual 4-input AND gate functionality
• Low power consumption (typical ICC = 4.4 mA)
• High speed: typical propagation delay of 15 ns
• Wide operating voltage range: 4.75 V to 5.25 V
• Standard 74LS logic family compatibility
• Compact 14-pin SOIC package for space-constrained designs
• Input clamp diodes for improved noise immunity

Target Applications

• Digital logic circuits in 5G base stations for signal processing
• Control logic in automotive dashboard systems
• Data routing and gating in industrial automation controllers
• Address decoding in memory modules
• General-purpose logic in consumer electronics

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74LS21D. 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

SN74LS21D 是德州儀器（Texas Instruments）的一款雙路4輸入正與門，屬於74LS低功耗肖特基邏輯系列。它將兩個獨立的與門（每個具有四個輸入）集成在一個緊湊的14引腳SOIC封裝中。該器件專為高速邏輯操作和低功耗設計，適用於多種數字應用。

詳細技術參數

核心特性

• 雙路4輸入與門功能
• 低功耗（典型ICC = 4.4 mA）
• 高速：典型傳播延遲15 ns
• 寬工作電壓範圍：4.75 V 至 5.25 V
• 標準74LS邏輯系列兼容性
• 緊湊的14引腳SOIC封裝，適合空間受限的設計
• 輸入箝位二極管，提高抗噪聲能力

典型應用場景

• 5G基站中的數字邏輯電路，用於信號處理
• 汽車儀表盤系統中的控制邏輯
• 工業自動化控制器中的數據路由和門控
• 存儲器模塊中的地址解碼
• 消費電子產品中的通用邏輯

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74LS21D 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]