SN74LS390D TI Dual Decade Counter | 16-SOIC | 4-Bit, Asynchronous Clear

Product Overview

The SN74LS390D from Texas Instruments is a dual 4-bit decade counter with asynchronous clear, designed for high-performance counting applications. Housed in a 16-SOIC package, this device integrates two independent decade counters in a single IC, each with a divide-by-2 and a divide-by-5 section. It operates from a 4.75V to 5.25V supply and features typical clock frequencies up to 35 MHz. The asynchronous clear function allows immediate reset of the counter outputs to zero, making it ideal for frequency division, time delay generation, and event counting in digital systems.

Detailed Technical Specifications

Key Features

• Dual 4-bit decade counters in one package
• Asynchronous clear for immediate reset
• High-speed operation: typical clock frequency up to 35 MHz
• Low power consumption: 45 mW per counter
• Wide operating voltage range: 4.75V to 5.25V
• Standard 16-SOIC package for easy integration
• Compatible with TTL logic levels

Target Applications

• Frequency division in 5G base station timing circuits
• Event counting in automotive dashboard displays
• Time delay generation in industrial control systems
• Digital counters in consumer electronics like washing machines
• Binary-to-decimal conversion in data acquisition systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74LS390D. 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

SN74LS390D 是德州儀器（TI）推出的雙路4位十進制計數器，具有異步清零功能，專為高性能計數應用設計。該器件採用16-SOIC封裝，在單一IC中集成兩個獨立的十進制計數器，每個計數器包含一個除以2和一個除以5的部分。工作電壓範圍為4.75V至5.25V，典型時鐘頻率高達35 MHz。異步清零功能可立即將計數器輸出復位為零，非常適用於數字系統中的分頻、延時生成和事件計數。

詳細技術參數

核心特性

• 單一封裝內集成雙路4位十進制計數器
• 異步清零，實現即時復位
• 高速操作：典型時鐘頻率高達35 MHz
• 低功耗：每個計數器僅45 mW
• 寬工作電壓範圍：4.75V 至 5.25V
• 標準16-SOIC封裝，易於集成
• 兼容TTL邏輯電平

典型應用場景

• 5G基站定時電路中的分頻
• 汽車儀表盤顯示中的事件計數
• 工業控制系統中的延時生成
• 洗衣機等消費電子中的數字計數
• 數據採集系統中的二進制到十進制轉換

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74LS390D 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]