SN74ALS191ADR TI Synchronous Up/Down Counter | 16-SOIC | 4-Bit, Binary, 20MHz

Product Overview

The SN74ALS191ADR is a synchronous, 4-bit, up/down binary counter from Texas Instruments, designed for high-speed digital applications. It features a 20 MHz clock frequency and operates from a 4.5V to 5.5V supply. The device is housed in a 16-pin SOIC package, making it suitable for compact designs. It offers parallel load capability, ripple clock output, and a carry/borrow output for cascading multiple counters.

Detailed Technical Specifications

Key Features

• Synchronous operation for glitch-free counting
• Up/down counting with direction control
• Parallel load for preset count values
• Ripple clock output for cascading
• Carry/borrow output for multi-stage counters
• High-speed ALS technology
• Low power consumption
• Wide operating voltage range

Target Applications

• 5G base station timing and synchronization circuits
• Automotive dashboard display controllers
• Industrial automation counters and timers
• Digital frequency dividers in communication systems
• Programmable logic controllers (PLCs)
• Test and measurement equipment

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74ALS191ADR. 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

SN74ALS191ADR 是德州儀器（TI）生產的同步4位二進制可逆計數器，專為高速數字應用設計。它支持20 MHz時鐘頻率，工作電壓範圍為4.5V至5.5V。器件採用16引腳SOIC封裝，適合緊湊型設計。具有並行加載功能、紋波時鐘輸出以及用於級聯的進位/借位輸出。

詳細技術參數

核心特性

• 同步操作，無毛刺計數
• 可逆計數，帶方向控制
• 並行加載，可預設計數值
• 紋波時鐘輸出，便於級聯
• 進位/借位輸出，支持多級計數器
• 高速ALS技術
• 低功耗
• 寬工作電壓範圍

典型應用場景

• 5G基站定時與同步電路
• 汽車儀表盤顯示控制器
• 工業自動化計數器和定時器
• 通信系統中的數字分頻器
• 可編程邏輯控制器（PLC）
• 測試與測量設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74ALS191ADR 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]