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M48T86-MH1F from STM,ST Microelectronics

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M48T86-MH1F

Manufacturer: STM

5 VOLT PC REAL TIME CLOCK

Partnumber Manufacturer Quantity Availability
M48T86-MH1F,M48T86MH1F STM 866 In Stock

Description and Introduction

5 VOLT PC REAL TIME CLOCK The **M48T86-MH1F** is a real-time clock (RTC) module manufactured by **STMicroelectronics (STM)**. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:**  
- **STMicroelectronics (STM)**  

### **Specifications:**  
- **Type:** Real-Time Clock (RTC) with NVSRAM  
- **Timekeeping Accuracy:** ±1 minute per month at 25°C  
- **Operating Voltage:** **4.5V to 5.5V**  
- **Battery Backup Voltage:** **2.5V to 3.5V** (for timekeeping during power loss)  
- **Clock Frequency:** **32.768 kHz** (crystal oscillator)  
- **Memory:** **8KB** of non-volatile static RAM (NVSRAM)  
- **Interface:** **Parallel (8-bit)**  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Package:** **28-pin SOIC (MH1F suffix)**  

### **Descriptions:**  
- The **M48T86-MH1F** is a **battery-backed RTC** with an integrated **8KB NVSRAM**, ensuring data retention during power loss.  
- It provides **seconds, minutes, hours, day, date, month, and year** information with automatic leap-year compensation.  
- The device includes **power-fail detection** and **write protection** to prevent data corruption.  

### **Features:**  
- **Battery-Backed Timekeeping & SRAM** – Maintains time and data during power interruptions.  
- **Low Power Consumption** – Optimized for battery backup operation.  
- **Automatic Leap-Year Compensation** – Valid up to the year **2100**.  
- **Power-Fail Detection Circuit** – Monitors VCC and switches to battery backup when needed.  
- **Write Protection** – Prevents accidental writes to critical registers.  
- **Industrial Temperature Range** – Supports **-40°C to +85°C** operation.  

This information is based on the manufacturer's datasheet and technical documentation.

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