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M4T28-BR12SH1 from STM,ST Microelectronics

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M4T28-BR12SH1

Manufacturer: STM

TIMEKEEPER SNAPHAT (BATTERY & CRYSTAL)

Partnumber Manufacturer Quantity Availability
M4T28-BR12SH1,M4T28BR12SH1 STM 10000 In Stock

Description and Introduction

TIMEKEEPER SNAPHAT (BATTERY & CRYSTAL) The part **M4T28-BR12SH1** is manufactured by **STMicroelectronics (STM)**.  

### **Specifications:**  
- **Type:** Real-Time Clock (RTC) with Trickle Charger  
- **Package:** 12-pin DIP (Dual In-line Package)  
- **Interface:** Serial (I²C)  
- **Operating Voltage:** 2.0V to 5.5V  
- **Timekeeping Current:** Low power consumption (typically 400nA at 3V)  
- **Clock Accuracy:** ±2ppm at 25°C  
- **Temperature Range:** -40°C to +85°C  
- **Integrated Features:**  
  - 56-byte NV RAM for data storage  
  - Automatic leap year compensation  
  - Programmable square wave output  
  - Power-fail detection and reset circuitry  

### **Descriptions and Features:**  
- Provides **battery-backed timekeeping** with a built-in trickle charger for rechargeable batteries.  
- Supports **I²C bus communication** for easy integration with microcontrollers.  
- Includes **non-volatile RAM** for storing critical data during power loss.  
- Designed for **low-power applications**, making it suitable for battery-operated devices.  
- **Industrial-grade** reliability with a wide operating temperature range.  

This RTC is commonly used in **embedded systems, industrial controls, and consumer electronics** where accurate timekeeping is essential.  

Would you like any additional technical details?

Application Scenarios & Design Considerations

TIMEKEEPER SNAPHAT (BATTERY & CRYSTAL)

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