SN74ALS639AN TI Bus Transceiver | 20-PDIP | 8-Bit, Non-Inverting, 3-State

Product Overview

The SN74ALS639AN is a high-performance 8-bit bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between two data buses. It features non-inverting outputs and 3-state outputs for bus-oriented applications. Housed in a 20-pin PDIP package, this device operates from a single 5V supply and is compatible with TTL logic levels. It is ideal for driving high-capacitance loads and long transmission lines.

Detailed Technical Specifications

Key Features

• 8-bit bidirectional bus transceiver
• Non-inverting outputs
• 3-state outputs for bus isolation
• High drive capability: -15 mA / 24 mA
• Low power consumption
• TTL input and output compatibility
• ESD protection exceeds 2000 V per MIL-STD-883

Target Applications

• 5G base station control boards
• Automotive dashboard display modules
• Industrial PLC I/O modules
• Telecommunications switching equipment
• Data communication routers and switches

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74ALS639AN. 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

SN74ALS639AN 是一款高性能 8 位总线收发器，由德州仪器 (TI) 生产，专为两个数据总线之间的双向异步通信而设计。它具有同相输出和三态输出，适用于总线导向型应用。该器件采用 20 引脚 PDIP 封装，在 5V 单电源下工作，兼容 TTL 逻辑电平，非常适合驱动高电容负载和长传输线。

詳細技術參數

核心特性

• 8 位双向总线收发器
• 同相输出
• 三态输出，实现总线隔离
• 高驱动能力：-15 mA / 24 mA
• 低功耗
• TTL 输入和输出兼容
• ESD 保护超过 2000 V（符合 MIL-STD-883）

典型應用場景

• 5G 基站控制板
• 汽车仪表盘显示模块
• 工业 PLC I/O 模块
• 电信交换设备
• 数据通信路由器和交换机

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74ALS639AN 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]