SN74HC21DR TI Logic Gates | 14-SOIC | Dual 4-Input AND Gate, 2V-6V

Product Overview

The SN74HC21DR from Texas Instruments is a dual 4-input AND gate integrated circuit. It belongs to the HC (High-Speed CMOS) family, offering a balance of speed and power consumption. The device is housed in a 14-pin SOIC package, suitable for surface-mount applications. It operates over a wide voltage range of 2V to 6V, making it compatible with various logic levels. The SN74HC21DR provides reliable logic AND functionality with typical propagation delays of 12 ns at 5V.

Detailed Technical Specifications

Key Features

• Dual 4-input AND gate
• Wide operating voltage range: 2V to 6V
• High noise immunity: typically VNIH = VNIL = 28% of VCC
• Low power consumption: ICC max 20 µA at 25°C
• Balanced propagation delays and transition times
• Inputs are overvoltage tolerant up to 6V
• Standard 14-pin SOIC package for easy integration

Target Applications

The SN74HC21DR is ideal for general-purpose logic gating in various electronic systems. Specific applications include:

• 5G base station control logic: used in signal conditioning and enable/disable functions
• Automotive dashboard displays: for logic combination of sensor inputs
• Industrial automation: PLC input/output modules
• Consumer electronics: remote control decoders, game consoles
• Medical devices: patient monitoring systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74HC21DR. 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

SN74HC21DR 是德州儀器（TI）生產的雙路4輸入與門集成電路。它屬於 HC（高速 CMOS）系列，在速度和功耗之間取得了平衡。該器件採用 14 引腳 SOIC 封裝，適用於表面貼裝應用。工作電壓範圍為 2V 至 6V，可與多種邏輯電平兼容。SN74HC21DR 提供可靠的邏輯與功能，典型傳播延遲為 12 ns（5V 時）。

詳細技術參數

核心特性

• 雙路 4 輸入與門
• 寬工作電壓範圍：2V 至 6V
• 高抗噪能力：典型 VNIH = VNIL = 28% VCC
• 低功耗：25°C 時 ICC 最大值 20 µA
• 平衡的傳播延遲和轉換時間
• 輸入過壓耐受能力高達 6V
• 標準 14 引腳 SOIC 封裝，易於集成

典型應用場景

SN74HC21DR 適用於各種電子系統中的通用邏輯門控。具體應用包括：

• 5G 基站控制邏輯：用於信號調理和使能/禁用功能
• 汽車儀表盤顯示：用於傳感器輸入的邏輯組合
• 工業自動化：PLC 輸入/輸出模塊
• 消費電子：遙控解碼器、遊戲機
• 醫療設備：病人監護系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74HC21DR 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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• 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.
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