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M41T56M6-TR from ST,ST Microelectronics

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M41T56M6-TR

Manufacturer: ST

512 Bit (64B X8) Serial Access TIMEKEEPER SRAM

Partnumber Manufacturer Quantity Availability
M41T56M6-TR,M41T56M6TR ST 2222 In Stock

Description and Introduction

512 Bit (64B X8) Serial Access TIMEKEEPER SRAM The M41T56M6-TR is a serial real-time clock (RTC) manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:  

### **Manufacturer:** STMicroelectronics  

### **Specifications:**  
- **Interface:** I2C (400 kHz)  
- **Timekeeping Accuracy:** ±2 ppm (±0.1728 seconds/day) at 25°C  
- **Operating Voltage:** 1.3 V to 4.4 V  
- **Battery Backup Voltage:** 1.0 V to 4.4 V  
- **Clock Frequency:** 32.768 kHz  
- **Timekeeping Current (Typical):** 300 nA (at 3 V)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SO-8  

### **Descriptions:**  
- Low-power serial real-time clock with built-in 32.768 kHz oscillator.  
- Provides seconds, minutes, hours, day, date, month, and year information with leap year compensation.  
- Includes automatic power-fail detection and switch circuitry.  
- Supports battery backup operation.  

### **Features:**  
- **Ultra-Low Power Consumption:** 300 nA typical timekeeping current.  
- **Wide Voltage Range:** Operates from 1.3 V to 4.4 V.  
- **I2C Interface:** Supports standard (100 kHz) and fast (400 kHz) modes.  
- **Programmable Alarm and Timer Functions:** Configurable interrupts.  
- **Power-Fail Detection:** Monitors VCC and switches to backup supply.  
- **Industrial Temperature Range:** Suitable for harsh environments.  
- **Small Footprint:** SO-8 package for space-constrained applications.  

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

Application Scenarios & Design Considerations

512 Bit (64B X8) Serial Access TIMEKEEPER SRAM

Alternative Part Number

  • DS1307Z+ --: I2C real-time clock with 56 bytes of battery-backed SRAM, functionally equivalent to the M41T56 and available in an SOIC-8 package; widely used as a drop-in alternative.
  • PCF8563T --: Low-power I2C RTC in SOIC-8 with similar serial interface and timekeeping features, suitable for designs needing a compact RTC replacement.
  • RX8025T --: I2C real-time clock module with built-in crystal and comparable timekeeping functionality, offering good accuracy and a different series for easy distinction.

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