CD74HC190NS TI Presettable BCD Counter | 16-SO | 2V-6V, 8.5MHz

Product Overview

The CD74HC190NS is a high-speed CMOS presettable synchronous BCD decade counter from Texas Instruments. It features synchronous counting and asynchronous presetting, making it ideal for frequency division, timing, and control applications. The device operates over a wide voltage range of 2V to 6V and offers a typical clock frequency of 8.5MHz. Housed in a 16-pin SOIC package, it is suitable for space-constrained designs.

Detailed Technical Specifications

Key Features

• High-speed CMOS technology
• Synchronous up/down counting
• Asynchronous parallel load (preset)
• Wide operating voltage range: 2V to 6V
• Low power consumption: 80 µA max at 25°C
• Balanced propagation delays
• Standardized symmetrical output characteristics
• Compatible with TTL levels
• ESD protection exceeds 2000V per MIL-STD-883

Target Applications

The CD74HC190NS is used in a variety of digital systems requiring counting and timing functions. Specific examples include:

• 5G base station control logic for channel counting
• Automotive dashboard display drivers for odometer/trip counters
• Industrial programmable logic controllers (PLCs) for event sequencing
• Medical equipment timing circuits (e.g., infusion pumps)
• Consumer electronics like microwave ovens and washing machine timers

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for CD74HC190NS. 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

CD74HC190NS 是德州儀器出品的高速 CMOS 可預設同步 BCD 十進制計數器。它具備同步計數和非同步預設功能，非常適合用於分頻、定時和控制應用。該器件可在 2V 至 6V 的寬電壓範圍內工作，典型時鐘頻率為 8.5MHz。採用 16 引腳 SOIC 封裝，適合空間受限的設計。

詳細技術參數

核心特性

• 高速 CMOS 技術
• 同步加/減計數
• 非同步並行載入（預設）
• 寬工作電壓範圍：2V 至 6V
• 低功耗：25°C 時最大 80 µA
• 平衡的傳播延遲
• 標準化對稱輸出特性
• 與 TTL 電平兼容
• ESD 保護超過 2000V（符合 MIL-STD-883）

典型應用場景

CD74HC190NS 用於需要計數和定時功能的各種數字系統。具體實例包括：

• 5G 基站控制邏輯中的通道計數
• 汽車儀表盤顯示驅動中的里程/行程計數
• 工業可編程邏輯控制器 (PLC) 中的事件順序控制
• 醫療設備定時電路（如輸液泵）
• 消費電子產品如微波爐和洗衣機定時器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 CD74HC190NS 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]