SN74HC688N TI 8-Bit Identity Comparator | 20-PDIP | 2V to 6V, 8-Bit

Product Overview

The SN74HC688N from Texas Instruments is an 8-bit identity comparator designed for high-speed digital systems. It compares two 8-bit binary or BCD words and provides a low-level output when they are equal. Operating from 2V to 6V, it features low power consumption and high noise immunity typical of HC CMOS logic. Housed in a 20-pin PDIP package, it is ideal for industrial and consumer applications requiring reliable data comparison.

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 (min)
• Low power consumption: 80µA (max) ICC
• Balanced propagation delays: tPLH = tPHL
• Inputs accept voltages up to 6V regardless of VCC
• Standard 20-pin PDIP package for easy prototyping

Target Applications

• Digital comparators in 5G base station control logic
• Address decoding in automotive dashboard displays
• Data validation in industrial PLC systems
• Error detection in medical monitoring equipment
• Word comparison in networking routers

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74HC688N. 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

SN74HC688N 是德州儀器（TI）生產的8位元恒等比較器，專為高速數位系統設計。它比較兩個8位元二進制或BCD碼字，並在相等時輸出低電平。工作電壓範圍為2V至6V，具有HC CMOS邏輯典型的低功耗和高抗噪性。採用20引腳PDIP封裝，適用於需要可靠數據比較的工業和消費應用。

詳細技術參數

核心特性

• 8位元恒等比較器，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 = VCC 的 28%（最小值）
• 低功耗：ICC 最大值 80µA
• 平衡傳播延遲：tPLH = tPHL
• 輸入可承受高達 6V 電壓，與 VCC 無關
• 標準 20 引腳 PDIP 封裝，易於原型設計

典型應用場景

• 5G 基站控制邏輯中的數位比較器
• 汽車儀表板顯示中的地址解碼
• 工業 PLC 系統中的數據驗證
• 醫療監護設備中的錯誤檢測
• 網路路由器中的字比較

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74HC688N 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]