M41ST85WMX6TR ST RTC & SRAM | 28-SO | 64Kb SRAM, I2C Interface

Product Overview

The M41ST85WMX6TR is a high-performance real-time clock (RTC) and 64Kb (8K x 8) static RAM (SRAM) module from STMicroelectronics, packaged in a 28-pin SOIC (SO-28). It integrates a low-power RTC with a full calendar (seconds, minutes, hours, day, date, month, year) and a 64Kb SRAM, all accessible via an I2C serial interface. The device features automatic power-fail chip deselect and write protection, ensuring data integrity during power transitions. With a wide operating voltage range of 2.7V to 5.5V and a typical backup current of 0.5µA, it is ideal for battery-backed applications requiring non-volatile storage and accurate timekeeping.

Detailed Technical Specifications

Key Features

• Integrated 64Kb SRAM and RTC in a single package
• I2C serial interface with up to 400 kHz clock frequency
• Low power consumption: 0.5 µA typical backup current
• Automatic power-fail chip deselect and write protection
• Programmable alarm and interrupt output
• Wide operating voltage range: 2.7V to 5.5V
• Industrial temperature range: -40°C to +85°C
• RoHS compliant and lead-free

Target Applications

• 5G base stations: for time synchronization and configuration storage
• Industrial automation: PLCs, HMIs, and data loggers
• Smart meters: electricity, gas, and water meters
• Automotive: dashboard clocks, event data recorders (EDR)
• Medical devices: patient monitors, infusion pumps
• Networking equipment: routers, switches, and servers
• Consumer electronics: set-top boxes, smart home hubs

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for M41ST85WMX6TR. 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

M41ST85WMX6TR 是意法半導體（STMicroelectronics）推出的一款高性能實時時鐘（RTC）與 64Kb（8K x 8）靜態隨機存取存儲器（SRAM）模塊，採用 28 引腳 SOIC（SO-28）封裝。它集成了低功耗 RTC（支持完整的日曆功能：秒、分、時、星期、日期、月、年）和 64Kb SRAM，所有功能均可通過 I2C 串行接口訪問。該器件具有自動掉電芯片取消選通和寫保護功能，確保在電源轉換期間數據完整性。工作電壓範圍為 2.7V 至 5.5V，典型備用電流僅 0.5µA，非常適合需要非易失性存儲和精確計時的電池備份應用。

詳細技術參數

核心特性

• 單一封裝內集成 64Kb SRAM 和 RTC
• I2C 串行接口，時鐘頻率最高 400 kHz
• 低功耗：典型備用電流 0.5 µA
• 自動掉電芯片取消選通和寫保護
• 可編程鬧鐘和中斷輸出
• 寬工作電壓範圍：2.7V 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：用於時間同步和配置存儲
• 工業自動化：PLC、HMI 和數據記錄器
• 智能電表：電、氣、水表
• 汽車電子：儀表板時鐘、事件數據記錄器（EDR）
• 醫療設備：病人監護儀、輸液泵
• 網絡設備：路由器、交換機和服務器
• 消費電子：機頂盒、智能家居中樞

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 M41ST85WMX6TR 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]