SNJ54HC191FK TI Counter ICs | 20-LCCC (8.89X8.89) | 4-Bit, Synchronous, Up/Down

Product Overview

The SNJ54HC191FK is a high-speed, 4-bit synchronous up/down counter from Texas Instruments, designed for use in advanced digital systems. Fabricated with silicon-gate CMOS technology, it offers low power consumption and high noise immunity. The device features a synchronous counting mode and an asynchronous parallel load capability, making it suitable for a wide range of counting and frequency division applications. The SNJ54HC191FK is packaged in a 20-lead ceramic leadless chip carrier (LCCC) with dimensions of 8.89 mm x 8.89 mm, ensuring reliable performance in harsh environments.

Detailed Technical Specifications

Key Features

• 4-bit synchronous up/down counting
• Asynchronous parallel load for preset data
• Ripple clock output for cascading multiple counters
• Low power consumption: 80 µA (max) at VCC = 6 V, TA = 25°C
• High noise immunity: typical VNH = VNL = 28% of VCC
• Balanced propagation delays: tPLH = tPHL
• Wide operating voltage range: 2 V to 6 V
• Extended temperature range: -55°C to +125°C
• Complies with JEDEC standard No. 7A

Target Applications

• 5G base station timing and control logic
• Automotive dashboard display counters
• Industrial automation frequency dividers
• Medical equipment sequencing circuits
• Avionics navigation system counters

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SNJ54HC191FK. 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

SNJ54HC191FK 是德州儀器推出的一款高速4位同步加/減計數器，採用硅柵CMOS工藝製造，具有低功耗和高抗噪聲特性。該器件支持同步計數模式和異步並行加載功能，適用於多種計數和分頻應用。SNJ54HC191FK 採用20引腳陶瓷無引線芯片載體（LCCC）封裝，尺寸為8.89 mm x 8.89 mm，確保在惡劣環境下的可靠性能。

詳細技術參數

核心特性

• 4位同步加/減計數
• 異步並行加載預設數據
• 級聯多個計數器的紋波時鐘輸出
• 低功耗：在 VCC = 6 V, TA = 25°C 時最大 80 µA
• 高抗噪聲：典型 VNH = VNL = 28% VCC
• 平衡傳播延遲：tPLH = tPHL
• 寬工作電壓範圍：2 V 至 6 V
• 擴展溫度範圍：-55°C 至 +125°C
• 符合 JEDEC 標準 No. 7A

典型應用場景

• 5G基站時序和控制邏輯
• 汽車儀表盤顯示計數器
• 工業自動化分頻器
• 醫療設備序列電路
• 航空導航系統計數器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SNJ54HC191FK 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。
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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。
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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]