SN74HC191DR TI Counter IC | 16-SOIC | 4-Bit, Synchronous, Up/Down

Product Overview

The SN74HC191DR from Texas Instruments is a 4-bit synchronous up/down counter with a wide operating voltage range of 2V to 6V. Housed in a compact 16-SOIC package, this device features asynchronous parallel load and ripple carry output for easy cascading. It is designed for high-speed counting applications in industrial and consumer electronics.

Detailed Technical Specifications

Key Features

• 4-bit synchronous up/down counting
• Asynchronous parallel load capability
• Ripple carry output for cascading
• Wide operating voltage range: 2V to 6V
• High noise immunity: typical 30% of VCC
• Low power consumption: 80-μA max ICC
• ±4-mA output drive at 5V
• Inputs are TTL-voltage compatible

Target Applications

• 5G base station control logic
• Automotive dashboard display counters
• Industrial automation counters
• Consumer electronics (e.g., washing machine timers)
• Frequency dividers in communication systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74HC191DR. 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

SN74HC191DR 是德州儀器（TI）生產的4位同步加/減計數器，工作電壓範圍為2V至6V。採用緊湊的16-SOIC封裝，具有異步並行加載和級聯用的紋波進位輸出，適用於工業和消費電子中的高速計數應用。

詳細技術參數

核心特性

• 4位同步加/減計數
• 異步並行加載功能
• 級聯用的紋波進位輸出
• 寬工作電壓範圍：2V 至 6V
• 高抗噪能力：典型值為 VCC 的 30%
• 低功耗：最大 ICC 為 80 μA
• 5V 時 ±4-mA 輸出驅動
• 輸入與 TTL 電壓兼容

典型應用場景

• 5G基站控制邏輯
• 汽車儀表盤顯示計數器
• 工業自動化計數器
• 消費電子（如洗衣機定時器）
• 通信系統中的分頻器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74HC191DR 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]