SN74LS90DR TI Decade Counter | 14-SOIC | 4-Bit, Asynchronous Reset

Product Overview

The SN74LS90DR is a 4-bit decade counter from Texas Instruments, featuring asynchronous clear and divide-by-two and divide-by-five capabilities. It is designed for high-performance counting applications in digital systems. The device is housed in a compact 14-SOIC package, making it suitable for space-constrained designs.

Detailed Technical Specifications

Key Features

• 4-bit decade counter with asynchronous clear
• Divide-by-two and divide-by-five sections
• Internal ripple carry for cascading
• Low power consumption
• Schmitt-trigger clock input for noise immunity

Target Applications

The SN74LS90DR is ideal for use in frequency dividers, digital clocks, timers, and counting circuits. Specific examples include 5G base station timing modules, automotive dashboard odometers, industrial automation counters, and consumer electronics like microwave ovens and washing machines.

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74LS90DR. 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

SN74LS90DR 是德州儀器（TI）生產的4位十進制計數器，具有異步清零功能，以及二分頻和五分頻能力。它專為數字系統中的高性能計數應用而設計，採用緊湊的14-SOIC封裝，適合空間受限的設計。

詳細技術參數

核心特性

• 4位十進制計數器，帶異步清零
• 二分頻和五分頻部分
• 內部行波進位，便於級聯
• 低功耗
• 施密特觸發時鐘輸入，抗噪聲能力強

典型應用場景

SN74LS90DR 適用於頻率分頻器、數字時鐘、定時器和計數電路。具體應用包括5G基站定時模塊、汽車儀表盤里程表、工業自動化計數器以及微波爐、洗衣機等消費電子產品。

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74LS90DR 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]