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M41ST87WMX6 from ST,ST Microelectronics

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M41ST87WMX6

Manufacturer: ST

5.0, 3.3, OR 3.0V, 1280 Bit (160 X8) Secure Serial RTC and NVRAM Supervisor with Tamper Detection

Partnumber Manufacturer Quantity Availability
M41ST87WMX6 ST 288 In Stock

Description and Introduction

5.0, 3.3, OR 3.0V, 1280 Bit (160 X8) Secure Serial RTC and NVRAM Supervisor with Tamper Detection The M41ST87WMX6 is a serial real-time clock (RTC) manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
1. **Interface:** I²C (400 kHz)  
2. **Supply Voltage:** 2.7V to 5.5V  
3. **Timekeeping Current:** 400 nA (typical at 3V)  
4. **Clock Accuracy:** ±5 ppm (±0.432 seconds/day) from 0°C to +40°C  
5. **Operating Temperature Range:** -40°C to +85°C  
6. **Package:** 8-lead SOIC (150 mil)  

### **Descriptions:**  
- The M41ST87WMX6 is a low-power serial RTC with an integrated 32.768 kHz oscillator.  
- It provides timekeeping (seconds, minutes, hours, day, date, month, year) with leap-year compensation up to 2099.  
- Includes a watchdog timer and a programmable alarm.  
- Features a battery switchover circuit for backup power.  

### **Features:**  
- **Low Power Consumption:** Ultra-low standby current for battery-backed applications.  
- **Battery Backup:** Automatic switchover to a backup supply when primary power fails.  
- **Integrated Oscillator:** No external crystal tuning required.  
- **Alarm Function:** Programmable with interrupt capability.  
- **Watchdog Timer:** Configurable timeout period.  
- **Tamper Detection:** Optional feature for security applications.  
- **EEPROM:** 128 bytes of non-volatile memory for user data storage.  

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

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