SN74LS644-1N3 TI Bus Transceiver | 20-PDIP | 8-Bit, 3-State, Inverting

Product Overview

The SN74LS644-1N3 is a high-performance octal bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between data buses. Housed in a 20-pin PDIP package, this device features 8-bit inverting 3-state outputs, making it ideal for multiplexed data transmission systems. It operates with a typical supply voltage of 5V and offers low power consumption characteristic of LS logic families.

Detailed Technical Specifications

Key Features

• 8-bit bidirectional bus transceiver with inverting 3-state outputs
• Separate output enable (OE) and direction control (DIR) pins
• Low power consumption: typical ICC = 54 mA
• Inputs are TTL-compatible
• High noise immunity: typical 400 mV
• Designed for memory and bus-oriented systems

Target Applications

• Data bus isolation and buffering in 5G base station control boards
• Interface between microcontroller and memory in automotive dashboard systems
• Signal routing in industrial PLC (Programmable Logic Controller) modules
• Bus arbitration in telecommunications switching equipment
• Level translation in mixed-voltage digital systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74LS644-1N3. 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

SN74LS644-1N3 是德州儀器 (TI) 生產的高性能八路匯流排收發器，專為雙向異步數據傳輸設計。採用 20 引腳 PDIP 封裝，具備 8 位反相三態輸出，非常適合多路復用數據傳輸系統。典型工作電壓為 5V，具有 LS 邏輯系列的低功耗特性。

詳細技術參數

核心特性

• 8 位雙向匯流排收發器，帶反相三態輸出
• 獨立的輸出使能 (OE) 和方向控制 (DIR) 引腳
• 低功耗：典型 ICC = 54 mA
• 輸入兼容 TTL 電平
• 高噪聲容限：典型 400 mV
• 專為存儲器和匯流排系統設計

典型應用場景

• 5G 基站控制板中的數據匯流排隔離與緩衝
• 汽車儀表板系統中微控制器與存儲器之間的接口
• 工業 PLC 模塊中的信號路由
• 電信交換設備中的匯流排仲裁
• 混合電壓數字系統中的電平轉換

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74LS644-1N3 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]