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M48T86 from ST,ST Microelectronics

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M48T86

Manufacturer: ST

5 VOLT PC REAL TIME CLOCK

Partnumber Manufacturer Quantity Availability
M48T86 ST 6 In Stock

Description and Introduction

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

### **Manufacturer:**  
STMicroelectronics (ST)  

### **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 (Lithium battery)  
- **Clock Frequency:** 32.768 kHz  
- **Data Retention:** Minimum 10 years in battery backup mode  
- **Interface:** Parallel (8-bit multiplexed address/data bus)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial) / -40°C to +85°C (Industrial)  
- **Package:** 28-pin DIP (Dual In-line Package)  

### **Descriptions:**  
- The M48T86 integrates a real-time clock, calendar, and 8KB of non-volatile static RAM (NVSRAM).  
- It provides timekeeping functions including seconds, minutes, hours, day, date, month, year, and century.  
- The device includes leap year compensation and automatic daylight saving time adjustment.  
- The NVSRAM retains data during power loss when powered by a backup battery.  

### **Features:**  
- **Real-Time Clock Functions:**  
  - Seconds, minutes, hours (12/24-hour format)  
  - Day, date, month, year (including century)  
  - Leap year correction  
- **Non-Volatile SRAM:**  
  - 8KB of battery-backed SRAM  
  - Unlimited write cycles  
- **Power Management:**  
  - Automatic switch to battery backup on power failure  
  - Low battery detection  
- **Additional Functions:**  
  - Watchdog timer  
  - Programmable square wave output  
  - Interrupt capability  

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

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