BQ4802YDW TI Real-Time Clock | 28-SOIC | 5V Supply, 128 Bytes NVRAM

Product Overview

The BQ4802YDW from Texas Instruments is a high-performance real-time clock (RTC) module designed for applications requiring accurate timekeeping and battery backup. Housed in a 28-pin SOIC package, this device integrates a full-function RTC with 128 bytes of non-volatile static RAM (NVSRAM), a programmable alarm, and a precision temperature-compensated crystal oscillator. It operates over a wide voltage range of 2.7V to 5.5V, making it suitable for both 3.3V and 5V systems. The BQ4802YDW is ideal for industrial, telecommunications, and automotive applications where reliable timekeeping and data retention are critical.

Detailed Technical Specifications

Key Features

• Integrated real-time clock with seconds, minutes, hours, day, date, month, and year
• 128 bytes of battery-backed NVSRAM for data storage
• Programmable alarm with interrupt output
• Automatic battery switchover and deselect circuitry
• Low power consumption: 1.0 µA typical in battery backup mode
• Wide operating voltage range: 2.7V to 5.5V
• Industrial temperature range: -40°C to +85°C
• Standard 28-pin SOIC package for easy integration

Target Applications

• 5G base station equipment requiring precise time synchronization
• Automotive dashboard clocks and event data recorders
• Industrial automation controllers with time-stamped logging
• Smart meters and utility monitoring systems
• Medical devices such as patient monitors and infusion pumps
• Networking equipment like routers and switches

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ4802YDW. 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

德州儀器（TI）的BQ4802YDW是一款高性能實時時鐘（RTC）模塊，專為需要精確計時和電池備份的應用而設計。該器件採用28引腳SOIC封裝，集成了全功能RTC、128字節非易失性靜態RAM（NVSRAM）、可編程鬧鐘以及精密溫度補償晶體振盪器。它可在2.7V至5.5V的寬電壓範圍內工作，適用於3.3V和5V系統。BQ4802YDW非常適合工業、電信和汽車應用，其中可靠的計時和數據保留至關重要。

詳細技術參數

核心特性

• 集成實時時鐘，支持秒、分、時、日、日期、月、年
• 128 字節電池備份 NVSRAM，用於數據存儲
• 可編程鬧鐘，帶中斷輸出
• 自動電池切換和斷開電路
• 低功耗：電池備份模式下典型值 1.0 µA
• 寬工作電壓範圍：2.7V 至 5.5V
• 工業溫度範圍：-40°C 至 +85°C
• 標準 28 引腳 SOIC 封裝，易於集成

典型應用場景

• 需要精確時間同步的 5G 基站設備
• 汽車儀表板時鐘和事件數據記錄器
• 帶時間戳記錄的工業自動化控制器
• 智能電表和公用事業監控系統
• 醫療設備，如病人監護儀和輸液泵
• 網絡設備，如路由器和交換機

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ4802YDW 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]