CD74HCT390E TI Dual Decade Counter | 16-PDIP | 4.5V-5.5V, 25MHz

Product Overview

The CD74HCT390E is a high-speed CMOS dual decade counter from Texas Instruments, packaged in a 16-pin PDIP. It contains two independent decade counters, each with a divide-by-2 and a divide-by-5 section. The device operates over a supply voltage range of 4.5V to 5.5V and features a typical clock frequency of 25MHz. It is designed for use in frequency division, counting, and timing applications where low power consumption and high noise immunity are required.

Detailed Technical Specifications

Key Features

• Dual decade counter with independent divide-by-2 and divide-by-5 sections
• High-speed operation: 25 MHz typical clock frequency
• Low power consumption: 80 µA maximum ICC
• Balanced propagation delays: tPLH = tPHL
• Schmitt-triggered clock input for noise immunity
• Output drive capability: 10 LSTTL loads
• Wide operating temperature range: -55°C to +125°C

Target Applications

• Frequency division in 5G base station timing modules
• Digital counters in automotive dashboard displays
• Industrial automation for event counting in PLCs
• Consumer electronics for remote control decoding
• Medical devices for patient monitoring systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for CD74HCT390E. 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

CD74HCT390E 是德州儀器的一款高速 CMOS 雙十進制計數器，採用 16 引腳 PDIP 封裝。它包含兩個獨立的十進制計數器，每個計數器具有一個除以 2 和一個除以 5 的部分。該器件在 4.5V 至 5.5V 的電源電壓範圍內工作，典型時鐘頻率為 25MHz。它適用於需要低功耗和高抗噪聲能力的頻率分頻、計數和定時應用。

詳細技術參數

核心特性

• 雙十進制計數器，具有獨立的除以 2 和除以 5 部分
• 高速操作：典型時鐘頻率 25 MHz
• 低功耗：最大 ICC 80 µA
• 平衡傳播延遲：tPLH = tPHL
• 施密特觸發時鐘輸入，提高抗噪聲能力
• 輸出驅動能力：10 個 LSTTL 負載
• 寬工作溫度範圍：-55°C 至 +125°C

典型應用場景

• 5G 基站定時模塊中的頻率分頻
• 汽車儀表盤顯示中的數字計數器
• 工業自動化中 PLC 的事件計數
• 消費電子中的遙控解碼
• 醫療設備中的病人監護系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 CD74HCT390E 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。
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• 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]