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Product Overview
The M41ST85WMH6F is a low-power, serial real-time clock (RTC) with 64 bytes of NVRAM (non-volatile RAM) from STMicroelectronics. It integrates a quartz crystal and a lithium battery in a 28-pin SOH package, providing a complete timekeeping solution with automatic backup power. The device communicates via the I2C bus and offers high accuracy with temperature compensation. It is ideal for applications requiring reliable time stamping and data retention in the absence of main power.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage |
2.7V to 5.5V |
| Timekeeping Current |
0.9 µA (typ) |
| Operating Temperature |
-40°C to +85°C |
| Accuracy |
±5 ppm (0°C to 40°C) |
| Interface |
I2C (up to 400 kHz) |
| NVRAM |
64 bytes |
| Package |
28-pin SOH (SOIC wide) |
| Battery Backup |
Integrated lithium cell |
Key Features
- Integrated 32.768 kHz quartz crystal
- Automatic battery switchover
- Programmable alarm and interrupt
- Watchdog timer
- 64 bytes of NVRAM for data storage
- Low power consumption
- RoHS compliant
Target Applications
- 5G base stations (e.g., Nokia AirScale, Ericsson Radio System)
- Automotive dashboards and infotainment systems
- Smart meters (electricity, gas, water)
- Industrial automation controllers
- Medical devices (patient monitors, infusion pumps)
- Point-of-sale terminals
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
M41ST85WMH6F. 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.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
M41ST85WMH6F 是意法半導體推出的一款低功耗串行實時時鐘(RTC),內置 64 字節非易失性 RAM(NVRAM)。它集成了石英晶振和鋰電池,採用 28 引腳 SOH 封裝,提供完整的計時解決方案,並在主電源斷電時自動切換到備用電池。該器件通過 I2C 總線通信,具有溫度補償功能,精度高。適用於需要可靠時間戳記和數據保留的應用場合。
詳細技術參數
| 參數 |
數值 |
| 供電電壓 |
2.7V 至 5.5V |
| 計時電流 |
0.9 µA(典型值) |
| 工作溫度 |
-40°C 至 +85°C |
| 精度 |
±5 ppm(0°C 至 40°C) |
| 接口 |
I2C(最高 400 kHz) |
| NVRAM |
64 字節 |
| 封裝 |
28 引腳 SOH(SOIC 寬體) |
| 電池備份 |
集成鋰電池 |
核心特性
- 集成 32.768 kHz 石英晶振
- 自動電池切換
- 可編程鬧鐘和中斷
- 看門狗定時器
- 64 字節 NVRAM 用於數據存儲
- 低功耗
- 符合 RoHS 標準
典型應用場景
- 5G 基站(如 Nokia AirScale、Ericsson Radio System)
- 汽車儀表盤和信息娛樂系統
- 智能電表(電、氣、水)
- 工業自動化控制器
- 醫療設備(病人監護儀、輸液泵)
- 銷售點終端
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 M41ST85WMH6F 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。
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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。
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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。
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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。
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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。
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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。
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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。
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Our team provides competitive wholesale pricing for M41ST85WMH6F.
HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]