M41T81SM6F ST Real-Time Clock | 8-SOIC | I2C, 512 Bytes SRAM

Product Overview

The M41T81SM6F is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator and 512 bytes of SRAM. Manufactured by STMicroelectronics, this device is housed in an 8-pin SOIC package and communicates via the I2C bus. It provides timekeeping functions including seconds, minutes, hours, day, date, month, year, and century, with automatic leap year compensation up to 2099. The RTC operates over a wide voltage range of 2.0V to 5.5V and features a backup battery input for maintaining timekeeping during power loss.

Detailed Technical Specifications

Key Features

• Low power consumption: 0.9 µA typical timekeeping current
• I2C serial interface with up to 400 kHz clock frequency
• Integrated 32.768 kHz oscillator with frequency trimming capability
• 512 bytes of battery-backed SRAM for data storage
• Automatic leap year correction
• Programmable alarm and interrupt output
• Wide operating voltage range (2.0V to 5.5V)
• Industrial temperature range (-40°C to +85°C)
• RoHS compliant and halogen-free

Target Applications

• 5G base stations: precise time synchronization for network equipment
• Automotive dashboard: timekeeping and event logging
• Smart meters: energy consumption recording with timestamp
• Industrial automation: PLC and data loggers
• Medical devices: patient monitoring systems
• Consumer electronics: set-top boxes, home appliances

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for M41T81SM6F. 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

M41T81SM6F 是一款低功耗串行實時時鐘 (RTC)，內置 32.768 kHz 振盪器和 512 字節 SRAM。由意法半導體 (STMicroelectronics) 製造，採用 8 引腳 SOIC 封裝，通過 I2C 總線通信。它提供秒、分、時、日、日期、月、年及世紀等計時功能，並具有自動閏年補償（至 2099 年）。RTC 的工作電壓範圍為 2.0V 至 5.5V，並配有備用電池輸入，可在斷電時維持計時。

詳細技術參數

核心特性

• 低功耗：典型計時電流 0.9 µA
• I2C 串行接口，時鐘頻率最高 400 kHz
• 集成 32.768 kHz 振盪器，支持頻率微調
• 512 字節電池備份 SRAM，用於數據存儲
• 自動閏年校正
• 可編程鬧鐘和中斷輸出
• 寬工作電壓範圍 (2.0V 至 5.5V)
• 工業級溫度範圍 (-40°C 至 +85°C)
• 符合 RoHS 標準，無滷素

典型應用場景

• 5G 基站：網絡設備的精確時間同步
• 汽車儀表盤：計時和事件記錄
• 智能電錶：帶時間戳的能耗記錄
• 工業自動化：PLC 和數據記錄器
• 醫療設備：病人監護系統
• 消費電子：機頂盒、家用電器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 M41T81SM6F 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]