BQ4802YDSH TI Real-Time Clock | 28-SOP | 3V/5V, I2C, 512B NVSRAM

Product Overview

The BQ4802YDSH is a high-performance real-time clock (RTC) module from Texas Instruments, designed for accurate timekeeping and data storage in industrial and embedded systems. Housed in a compact 28-pin SOP package, it integrates a precision RTC with 512 bytes of non-volatile SRAM (NVSRAM), ensuring data retention during power loss. Operating from a single 3V or 5V supply, it features an I2C interface for seamless communication with microcontrollers. The device includes a built-in crystal oscillator, power-fail detection, and automatic battery switchover, making it ideal for applications requiring reliable time stamping and data logging.

Detailed Technical Specifications

Key Features

• Integrated real-time clock with calendar (seconds, minutes, hours, day, date, month, year, and leap year compensation)
• 512 bytes of non-volatile SRAM for data storage
• I2C serial interface with programmable alarm and interrupt output
• Power-fail detection and automatic battery switchover
• Low power consumption: 1.0 µA typical in timekeeping mode
• Wide operating voltage range: 3.0V to 5.5V
• Industrial temperature range: -40°C to +85°C
• 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 data loggers
• Smart meters and energy management systems
• Medical devices requiring time-stamped data
• Security systems and access control panels

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ4802YDSH. 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

BQ4802YDSH 是德州儀器（TI）推出的一款高性能實時時鐘（RTC）模塊，專為工業和嵌入式系統中的精確計時和數據存儲而設計。它採用緊湊的 28 引腳 SOP 封裝，集成了精密 RTC 和 512 字節非易失性 SRAM（NVSRAM），確保在斷電時數據不丟失。該器件可在 3V 或 5V 單電源下工作，並通過 I2C 接口與微控制器無縫通信。內置晶體振盪器、電源故障檢測和自動電池切換功能，使其非常適合需要可靠時間戳和數據記錄的應用。

詳細技術參數

核心特性

• 集成實時時鐘與日曆（秒、分、時、日、日期、月、年，含閏年補償）
• 512 字節非易失性 SRAM 用於數據存儲
• I2C 串行接口，帶可編程報警和中斷輸出
• 電源故障檢測和自動電池切換
• 低功耗：計時模式下典型值 1.0 µA
• 寬工作電壓範圍：3.0V 至 5.5V
• 工業級溫度範圍：-40°C 至 +85°C
• 符合 RoHS 標準，無鉛

典型應用場景

• 5G 基站設備，用於精確時間同步
• 汽車儀表盤時鐘和事件數據記錄器
• 工業 PLC 和數據記錄儀
• 智能電表和能源管理系統
• 需要時間戳數據的醫療設備
• 安全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 BQ4802YDSH 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]