BQ4845YS-A4NTR TI Real-Time Clock | 28-SOIC | 5V, 128x8 NVRAM

Product Overview

The BQ4845YS-A4NTR is a high-performance real-time clock (RTC) module from Texas Instruments, designed for applications requiring accurate timekeeping and nonvolatile memory storage. Housed in a 28-pin SOIC package, this device integrates a full-function RTC with 128 bytes of nonvolatile static RAM (NVSRAM), ensuring data retention even during power loss. The module operates from a single 5V supply and includes an internal lithium battery backup, providing reliable operation for extended periods. With its industrial temperature range and low power consumption, the BQ4845YS-A4NTR is ideal for embedded systems, telecommunications, and industrial control applications.

Detailed Technical Specifications

Key Features

• Integrated real-time clock with century byte and leap year compensation
• 128 x 8 nonvolatile static RAM for data storage
• Automatic power-fail detect and switch to battery backup
• Low power consumption: 1.5 µA typical in battery mode
• Industrial temperature range: -40°C to +85°C
• Byte-wide parallel interface with multiplexed address/data bus
• Internal lithium battery with 10-year data retention
• RoHS compliant and lead-free

Target Applications

• 5G base station equipment for accurate time synchronization
• Automotive dashboard clocks and event data recorders
• Industrial PLCs and automation controllers
• Medical devices requiring time-stamped data logging
• Smart meters and utility monitoring systems
• Networking equipment (routers, switches) for time-stamping

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ4845YS-A4NTR. 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

BQ4845YS-A4NTR 是德州儀器（TI）推出的一款高性能實時時鐘（RTC）模塊，專為需要精確計時和非易失性存儲的應用而設計。該器件採用 28 引腳 SOIC 封裝，集成了全功能 RTC 和 128 字節非易失靜態 RAM（NVSRAM），確保在斷電時數據仍能保留。模塊由單一 5V 電源供電，並包含內部鋰電池備份，提供長時間的可靠運行。憑藉工業溫度範圍和低功耗特性，BQ4845YS-A4NTR 非常適合嵌入式系統、電信和工業控制應用。

詳細技術參數

核心特性

• 集成實時時鐘，包含世紀字節和閏年補償
• 128 x 8 非易失靜態 RAM，用於數據存儲
• 自動電源故障檢測並切換至電池備份
• 低功耗：電池模式下典型值 1.5 µA
• 工業溫度範圍：-40°C 至 +85°C
• 字節寬並行接口，復用地址/數據總線
• 內部鋰電池，10 年數據保持
• 符合 RoHS 標準，無鉛

典型應用場景

• 5G 基站設備，用於精確時間同步
• 汽車儀表板時鐘和事件數據記錄器
• 工業 PLC 和自動化控制器
• 需要時間戳數據記錄的醫療設備
• 智能電表和公用事業監控系統
• 網絡設備（路由器、交換機）用於時間戳

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ4845YS-A4NTR 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]