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RV-1805-C3 Not recommended for new design-in, please use RV-3028-C7 for new design

Type Package
[mm] 		Interface Features
info-ico 		Current
@ 3V 		Time Accuracy
@ 25°C 		Temp Comp
-40/85°C 		VDD
min 		VDD
max 		Temp.
max 		Documents pdf-ico
RV-1805-C3 RV-1805-C3 3.7 x 2.5 x 0.9 I²C ico ico ico 60 nA ±2 ppm 1.1 V 3.6 V +85°C Datasheet
App. Manual

RV-1805-C3 Real Time Clock with Power Management provides a groundbreaking combination of ultra-low power coupled with a highly sophisticated feature set. The power requirement is significantly lower than any other industry RTC (as low as 17 nA). The RV-1805-C3 includes an on-chip oscillator to provide a minimum power consumption, full RTC functions including battery backup and programmable counters and alarms for timer and watchdog functions, and either an I²C serial interface for communication with a host controller. An integrated power switch and a sophisticated system sleep manager with counter, timer, alarm, and interrupt capabilities allows the RV-1805-C3 to be used as a supervisory component in a host microcontroller based system.

Features

  • Extreme low power consumption: XTAL mode, 60 nA @ 3 V.
  • RC mode, 17 nA @ 3 V. RC autocalibration mode, 22 nA @ 3 V.
  • Operating voltage range: 1.5 V to 3.6 V.
  • Time accuracy: Factory calibrated to ±2 ppm @ 25°C.
  • User programmable offset value.
  • Automatic Backup Switchover and Trickle Charger function.
  • Provides year, month, date, weekday, hours, minutes, seconds, 100th.
  • Timer, Alarm, External event and Watchdog functions.
  • Clock output frequencies: 32.768 kHz to 1/60 Hz.
  • 256 bytes user RAM.
     

Block Diagram

Applications

The RV-1805-C3 RTC module has been specially designed for ultimate low power consumption:

  • IoT
  • Wearables, Portables
  • Health Care
  • Metering
  • Industrial
  • Key element for power management

Dimensions

Ordering Information