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M41ST84YMQ6 from ST,ST Microelectronics

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M41ST84YMQ6

Manufacturer: ST

512 Bit (64 X8) Serial RTC with Supervisory Functions

Partnumber Manufacturer Quantity Availability
M41ST84YMQ6 ST 100 In Stock

Description and Introduction

512 Bit (64 X8) Serial RTC with Supervisory Functions The M41ST84YMQ6 is a serial real-time clock (RTC) manufactured by STMicroelectronics. Below are the key specifications, descriptions, and features based on the available knowledge:

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Interface:** I²C (400 kHz)  
- **Supply Voltage:** 1.8V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Timekeeping Current:** 400nA (typical at 3V)  
- **Clock Accuracy:** ±5ppm (±0.432 seconds/day) at 25°C  
- **Package:** SOIC-8  

### **Descriptions:**  
- The M41ST84YMQ6 is a low-power serial RTC with an integrated 32.768 kHz oscillator.  
- It provides timekeeping functions (seconds, minutes, hours, day, date, month, year) with leap-year compensation.  
- Includes a programmable alarm and watchdog timer.  
- Features a battery backup input for continuous operation during power loss.  

### **Features:**  
- **Low Power Consumption:** Optimized for battery-powered applications.  
- **I²C Interface:** Supports standard (100 kHz) and fast (400 kHz) modes.  
- **Battery Backup:** Automatic switchover to backup supply.  
- **Tamper Detection:** Optional timestamp feature for security applications.  
- **Industrial Temperature Range:** Suitable for harsh environments.  
- **EEPROM:** 64 bytes of non-volatile memory for user data storage.  

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

Application Scenarios & Design Considerations

512 Bit (64 X8) Serial RTC with Supervisory Functions

Alternative Part Number

  • DS1307Z+ --: I2C real-time clock with 56-byte NV RAM in an SOIC-8 package, functionally similar to the M41ST84Y RTC plus supervisor; different series and vendor, widely available.
  • PCF8563T --: Low-power I2C real-time clock/calendar in SOIC-8, a common drop-in style alternative for RTC functions with a clearly different part numbering series.
  • BQ32000DR --: I2C real-time clock with integrated trickle-charge and backup supply in SOIC-8, offering comparable RTC and battery-backup functionality from a different manufacturer and series.

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