SNJ54LS490W TI Counter IC | DIP | Dual 4-bit Binary Counter, Asynchronous Clear

Product Overview

The SNJ54LS490W is a high-performance dual 4-bit binary counter from Texas Instruments, designed for military and aerospace applications. It features two independent 4-bit counters with asynchronous clear and count enable inputs. The device operates over a wide temperature range of -55°C to +125°C and is available in a ceramic DIP package. It is ideal for applications requiring reliable counting, frequency division, and timing control in harsh environments.

Detailed Technical Specifications

Key Features

• Dual 4-bit binary counters with independent clock and clear inputs
• Asynchronous clear function for immediate reset
• Count enable input for gated counting
• Wide operating voltage range: 4.5V to 5.5V
• High noise immunity: typical 0.4V
• Low power consumption: 20 mW per counter (typical)
• Military-grade temperature range: -55°C to +125°C
• Hermetic ceramic DIP package for enhanced reliability

Target Applications

• 5G base station timing and synchronization circuits
• Avionics display systems (e.g., cockpit instrument panels)
• Military radar signal processing
• Industrial automation counters and dividers
• Satellite communication frequency synthesizers
• Automotive engine control units (ECUs) for off-road vehicles

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SNJ54LS490W. 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

SNJ54LS490W 是德州儀器推出的高性能雙4位二進制計數器，專為軍用和航空航天應用設計。它包含兩個獨立的4位計數器，具有異步清零和計數使能輸入。該器件可在 -55°C 至 +125°C 的寬溫度範圍內工作，並採用陶瓷 DIP 封裝。它非常適合需要在惡劣環境中進行可靠計數、分頻和定時控制的應用。

詳細技術參數

核心特性

• 雙4位二進制計數器，具有獨立的時鐘和清零輸入
• 異步清零功能，可立即復位
• 計數使能輸入，用於門控計數
• 寬工作電壓範圍：4.5V 至 5.5V
• 高噪聲容限：典型值 0.4V
• 低功耗：每個計數器典型值 20 mW
• 軍用級溫度範圍：-55°C 至 +125°C
• 密封陶瓷 DIP 封裝，增強可靠性

典型應用場景

• 5G 基站定時和同步電路
• 航空電子顯示系統（例如駕駛艙儀表板）
• 軍用雷達信號處理
• 工業自動化計數器和分頻器
• 衛星通信頻率合成器
• 越野車發動機控制單元 (ECU)

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SNJ54LS490W 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]