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NR3225SA (RTC Module for High accuracy time reference)


  • Small size SMD type : 3.2 × 2.5 × 1.0mm
  • High precision frequency temperature stability : Max. ±7.0×10-6(-40 to +105°C)
  • Temperature compensated voltage range : +2.0 to +5.5V
  • Low current consumption
  • Frequency selection function : 32.768kHz, 1024Hz, 32Hz, 1Hz
  • I2C-BUS serial interface type : 400kHz high speed mode
  • Various function including full calender, alarm and timer.
  • Conforms to AEC-Q200

NR3225SA Picture

  • RoHS compliant
  • Pb Free


Nominal Frequency (kHz) 32.768
Package Size (L×W×H : mm) 3.2×2.5×1.0
Temperature Compensation Supply Voltage (Characteristics guaranted) (V) +2.0 to +5.5
Interface Supply Voltage (V) +1.5 to +5.5
Time Keeping Supply Voltage +1.3 to +5.5
Operating Temperature Range   (°C) -40 to +105
Storage Temperature Range (°C) -40 to +105
Frequency / Temperature Characteristics -40 to +105°C Max. 7.0×10-6
-40 to +85°C Max. 5.0×10-6
-10 to +60°C Max. 3.8×10-6
Current Consumption (μA) SCL=SDA=/INT=VCC, E/D=VCC
Output 32.768kHz, VCC=+3V
Output at No-load
Max. 4.5
Non operating output VCC=+3V
Max. 4.0
Low Voltage Detection Voltage Min. +1.3
VOL Max. /VOH Min. 0.2VCC/0.8VCC
Tr Max. /Tf Max. (ns) 70
Symmetry Min. to Max. (%) 40 to 60
Output Load Condition (pF) CMOS Output 15.0
Start-up Time (sec) -40 to +105°C Max. 3.0
Specification Number NSA3646A

Please specify the model name, frequency, and specification number when you order products.
For further questions regarding specifications, please feel free to contact us.


NR3225SA Dimensions

Pin Function

NR3225SA Pin Function

Block Diagram

NR3225SA Block Diagram

Application Manual

Application Manual PDF



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