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DS3231 from DS,MAXIM - Dallas Semiconductor

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DS3231

Manufacturer: DS

Extremely Accurate I2C-Integrated RTC/TXO/Crystal

Partnumber Manufacturer Quantity Availability
DS3231 DS 114 In Stock

Description and Introduction

Extremely Accurate I2C-Integrated RTC/TXO/Crystal The DS3231 is a highly accurate, temperature-compensated real-time clock (RTC) with an integrated crystal oscillator. Here are its key specifications:

1. **Accuracy**: ±2ppm from 0°C to +40°C (±3.5ppm from -40°C to +85°C).  
2. **Temperature Range**: -40°C to +85°C.  
3. **Supply Voltage**: 2.3V to 5.5V.  
4. **Timekeeping Current**: 200nA (typical) in battery backup mode.  
5. **Clock Output**: Programmable square-wave output (1Hz, 1.024kHz, 4.096kHz, 8.192kHz).  
6. **Alarms**: Two time-of-day alarms with interrupt capability.  
7. **Interface**: I²C serial interface (up to 400kHz).  
8. **Battery Backup**: Operates from a 3V lithium cell or other power source.  
9. **Memory**: 236 bytes of battery-backed user SRAM.  
10. **Package**: Available in 16-pin SO (150mil) and 16-pin 300mil SO packages.  

The DS3231 is manufactured by Maxim Integrated (now part of Analog Devices).

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