BQ4845P-A4 TI Real-Time Clock | 28-PDIP | 5V, 128x8 SRAM, Battery Backup

Product Overview

The BQ4845P-A4 from Texas Instruments is a high-performance real-time clock (RTC) module with integrated 128x8 static RAM and battery backup capability. Housed in a 28-pin PDIP package, it provides accurate timekeeping, alarm functions, and non-volatile memory storage. The device operates from a 5V supply and is designed for applications requiring reliable time stamping and data retention during power loss.

Detailed Technical Specifications

Key Features

• Integrated RTC with calendar (seconds, minutes, hours, day, date, month, year)
• 128 x 8 static RAM for data storage
• Automatic battery switch-over for backup
• Programmable alarm and interrupt output
• Low power consumption in battery backup mode
• Direct interface to most microprocessors

Target Applications

• 5G base station equipment requiring precise time synchronization
• Industrial automation controllers with event logging
• Automotive dashboard clocks and trip computers
• Medical devices such as patient monitors with time-stamped data
• Smart meters for utility usage recording

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ4845P-A4. 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

BQ4845P-A4 是德州儀器 (TI) 的高性能實時時鐘 (RTC) 模塊，集成 128x8 靜態 RAM 和電池備份功能。採用 28 引腳 PDIP 封裝，提供精確的計時、鬧鐘功能和非易失性存儲。器件在 5V 電源下工作，適用於需要可靠時間戳記和斷電數據保留的應用。

詳細技術參數

核心特性

• 集成 RTC 與日曆 (秒、分、時、星期、日期、月、年)
• 128 x 8 靜態 RAM 用於數據存儲
• 自動切換至電池備份
• 可編程鬧鐘和中斷輸出
• 電池備份模式下低功耗
• 可直接與大多數微處理器接口

典型應用場景

• 需要精確時間同步的 5G 基站設備
• 帶事件記錄的工業自動化控制器
• 汽車儀表板時鐘和行程電腦
• 帶時間戳的醫療設備如病人監護儀
• 用於公用事業記錄的智能電錶

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ4845P-A4 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]