BQ4845S-A4TR TI Real-Time Clock | 28-SOIC | 5V, 128x8 RAM

Product Overview

The BQ4845S-A4TR from Texas Instruments is a high-performance real-time clock (RTC) module with integrated 128x8 static RAM and a lithium battery backup. It provides accurate timekeeping and data retention for industrial and automotive applications. The device operates from a 5V supply and is housed in a compact 28-SOIC package, making it suitable for space-constrained designs.

Detailed Technical Specifications

Key Features

• Integrated RTC with full calendar (seconds, minutes, hours, day, date, month, year) and leap year compensation
• 128 x 8 static RAM for data storage
• Built-in lithium battery backup for timekeeping and RAM retention
• Low power consumption: 1.5 µA typical in battery backup mode
• Parallel interface with multiplexed address/data bus
• Industrial temperature range: -40°C to +85°C
• RoHS compliant and lead-free

Target Applications

• 5G base station timing modules
• Automotive dashboard clocks and event data recorders
• Industrial automation controllers
• Smart meters and utility metering
• Medical equipment requiring time stamps
• Security systems and access control panels

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ4845S-A4TR. 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

BQ4845S-A4TR 是德州儀器（TI）推出的一款高性能實時時鐘（RTC）模組，內置 128x8 靜態 RAM 和鋰電池備份。它提供精確的計時和數據保持功能，適用於工業和汽車應用。該器件在 5V 電源下工作，採用緊湊的 28-SOIC 封裝，適合空間受限的設計。

詳細技術參數

核心特性

• 集成 RTC，支持完整日曆（秒、分、時、日、日期、月、年）和閏年補償
• 128 x 8 靜態 RAM 用於數據存儲
• 內置鋰電池備份，確保計時和 RAM 數據保持
• 低功耗：電池備份模式下典型值 1.5 µA
• 並行接口，復用地址/數據總線
• 工業溫度範圍：-40°C 至 +85°C
• 符合 RoHS 標準，無鉛

典型應用場景

• 5G 基站定時模塊
• 汽車儀表板時鐘和事件數據記錄器
• 工業自動化控制器
• 智能電表和公用事業計量
• 需要時間戳的醫療設備
• 安防系統和門禁控制面板

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ4845S-A4TR 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]