SNJ54HC193J TI Counter IC | 4-Bit Binary Up/Down | Synchronous, Presettable

Product Overview

The SNJ54HC193J is a high-speed, 4-bit binary up/down counter from Texas Instruments, designed for synchronous operation with a presettable feature. Fabricated using advanced silicon-gate CMOS technology, it offers the high noise immunity and low power consumption typical of HC devices, while maintaining compatibility with TTL logic levels. The counter is fully synchronous, meaning all state changes occur on the rising edge of the clock input, ensuring glitch-free operation. It includes a master reset (MR) input for asynchronous clearing, and a load (LD) input for parallel data entry. The up/down counting direction is controlled by separate clock inputs (CPU and CPD), allowing flexible bidirectional counting. The device is packaged in a hermetic ceramic DIP (J suffix) suitable for military and high-reliability applications.

Detailed Technical Specifications

Key Features

• Synchronous 4-bit binary up/down counting
• Presettable via parallel load (LD) input
• Asynchronous master reset (MR)
• Separate up (CPU) and down (CPD) clock inputs
• Ripple clock output for cascading
• High noise immunity: typical VNH = 28% of VCC
• Low power consumption: 80 µA max at 25°C
• TTL input/output compatible
• Hermetic ceramic package for harsh environments

Target Applications

The SNJ54HC193J is ideal for applications requiring reliable counting in demanding environments. Specific examples include:

• 5G base station timing and synchronization circuits
• Automotive dashboard odometer and trip counters
• Industrial programmable logic controllers (PLCs)
• Military avionics mission timers
• Medical equipment patient monitoring counters

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SNJ54HC193J. 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

SNJ54HC193J 是德州儀器推出的高速4位二進制加減計數器，採用同步操作並具有預置功能。基於先進的硅柵CMOS工藝，它具備HC系列器件典型的高噪聲容限和低功耗特性，同時兼容TTL邏輯電平。計數器完全同步，所有狀態變化發生在時鐘輸入的上升沿，確保無毛刺操作。它包含主復位（MR）輸入用於異步清零，以及加載（LD）輸入用於並行數據輸入。加減計數方向由獨立的時鐘輸入（CPU和CPD）控制，實現靈活的雙向計數。器件採用密封陶瓷DIP封裝（J後綴），適用於軍用和高可靠性應用。

詳細技術參數

核心特性

• 同步4位二進制加減計數
• 通過並行加載（LD）輸入預置
• 異步主復位（MR）
• 獨立的加計數（CPU）和減計數（CPD）時鐘輸入
• 用於級聯的紋波時鐘輸出
• 高噪聲容限：典型 VNH = 28% VCC
• 低功耗：25°C 時最大 80 µA
• TTL 輸入/輸出兼容
• 密封陶瓷封裝，適用於惡劣環境

典型應用場景

SNJ54HC193J 非常適合需要在嚴苛環境中進行可靠計數的應用。具體實例包括：

• 5G基站定時和同步電路
• 汽車儀表盤里程表和行程計數器
• 工業可編程邏輯控制器（PLC）
• 軍用航空電子任務定時器
• 醫療設備患者監護計數器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SNJ54HC193J 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.
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