SN74LS640N TI Bus Transceiver | 20-PDIP | 8-Bit, Inverting, 3-State

Product Overview

The SN74LS640N is a high-performance 8-bit bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between data buses. It features inverting outputs and 3-state outputs for bus-oriented applications. Housed in a 20-pin PDIP package, this device operates from a standard 5V supply and is characterized for operation from 0°C to 70°C. The SN74LS640N is ideal for use in microprocessor or microcontroller systems where data flow direction control is required.

Detailed Technical Specifications

Key Features

• 8-bit bidirectional bus transceiver with inverting outputs
• 3-state outputs for bus isolation
• Low power consumption: 45mW typical
• High noise immunity: typical 400mV
• Inputs and outputs are compatible with TTL logic levels
• Glitch-free power-up/power-down protection
• Standard 20-pin PDIP package for easy breadboarding and prototyping

Target Applications

• Microprocessor/microcontroller data bus buffering (e.g., Intel 8085, Motorola 6800)
• Memory interface for SRAM/EPROM (e.g., 6264, 2764)
• Industrial control systems (e.g., PLC I/O modules)
• Telecommunications equipment (e.g., PBX systems)
• Automotive electronics (e.g., engine control units)
• 5G base station control logic
• Automotive dashboard display controllers

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74LS640N. 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

SN74LS640N 是一款來自德州儀器的高性能8位總線收發器，專為雙向異步數據總線通信而設計。它具有反相輸出和三態輸出，適用於總線導向的應用。該器件採用20引腳PDIP封裝，在標準5V電源下工作，工作溫度範圍為0°C至70°C。SN74LS640N 非常適合需要數據流方向控制的微處理器或微控制器系統。

詳細技術參數

核心特性

• 8位雙向總線收發器，帶反相輸出
• 三態輸出，實現總線隔離
• 低功耗：典型45mW
• 高噪聲容限：典型400mV
• 輸入和輸出兼容TTL邏輯電平
• 無毛刺的上電/斷電保護
• 標準20引腳PDIP封裝，便於麵包板搭建和原型設計

典型應用場景

• 微處理器/微控制器數據總線緩衝（例如 Intel 8085、Motorola 6800）
• SRAM/EPROM 存儲器接口（例如 6264、2764）
• 工業控制系統（例如 PLC I/O 模塊）
• 電信設備（例如 PBX 系統）
• 汽車電子（例如發動機控制單元）
• 5G基站控制邏輯
• 汽車儀表盤顯示控制器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74LS640N 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]