SN74HC688DWR TI 8-Bit Identity Comparator | 20-SOIC | 2V to 6V, 5.2mA

Product Overview

The SN74HC688DWR from Texas Instruments is an 8-bit identity comparator designed for high-speed digital systems. It compares two 8-bit words (P and Q) and provides a low-level output when they are equal. The device operates over a wide supply voltage range of 2V to 6V, making it suitable for battery-powered and industrial applications. Housed in a 20-pin SOIC package, it features low power consumption and high noise immunity typical of HC CMOS logic.

Detailed Technical Specifications

Key Features

• 8-bit identity comparator with active-low output (P=Q)
• Wide operating voltage range: 2V to 6V
• High noise immunity: VNIH = VNIL = 28% of VCC
• Low power consumption: ICC max 80 µA
• Fast propagation delay: 23 ns at 4.5V
• Inputs accept voltages up to VCC
• Output drive capability: 5.2 mA at 5V
• Standard 20-pin SOIC package

Target Applications

The SN74HC688DWR is ideal for digital systems requiring word comparison, such as address decoding in memory systems, data validation in communication protocols, and equality detection in control logic. Specific examples include:

• 5G base station control logic for address matching
• Automotive dashboard display controllers for data integrity
• Industrial PLCs for sensor data comparison
• Network routers for packet header verification
• Medical devices for parameter matching

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74HC688DWR. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
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• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
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• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

SN74HC688DWR 是德州儀器 (TI) 生產的8位元身份比較器，專為高速數位系統設計。它比較兩個8位元字 (P 和 Q)，並在相等時提供低電平輸出。該器件在 2V 至 6V 的寬電源電壓範圍內工作，適用於電池供電和工業應用。採用 20 引腳 SOIC 封裝，具有 HC CMOS 邏輯典型的低功耗和高抗噪性。

詳細技術參數

核心特性

• 8位元身份比較器，低電平有效輸出 (P=Q)
• 寬工作電壓範圍：2V 至 6V
• 高抗噪性：VNIH = VNIL = 28% VCC
• 低功耗：ICC 最大 80 µA
• 快速傳播延遲：4.5V 時 23 ns
• 輸入可承受高達 VCC 的電壓
• 輸出驅動能力：5V 時 5.2 mA
• 標準 20 引腳 SOIC 封裝

典型應用場景

SN74HC688DWR 適用於需要字比較的數位系統，例如記憶體系統中的位址解碼、通訊協定中的資料驗證以及控制邏輯中的相等檢測。具體應用包括：

• 5G 基地台控制邏輯中的位址匹配
• 汽車儀表板顯示控制器中的資料完整性
• 工業 PLC 中的感測器資料比較
• 網路路由器中的封包頭驗證
• 醫療設備中的參數匹配

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74HC688DWR 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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