RV-3032-C7

RV-3032-C7  is a High Performance Temperature Compensated Real-Time Clock Module with I²C interface which offers the world's best time accuracy across industrial temperature range at ultra-low current consumption.

Factory calibrated temperature compensation of embedded 32.768 kHz crystal resonator provides ± 3.0 ppm accuracy from -40° to 85°C (±1.5 ppm 0° to 50°C; equivalent to ±0.13 sec/day). It allows extended battery life through timekeeping current as low as 160 nA.

Beside standard Real-Time Clock (RTC) functions like Calendar (100th of second through (leap-) year), Timer & Alarm, it includes an accurate high-resolution Temperature Sensor with programmable temperature window detection interrupt, smart power management functions and User EEPROM & RAM. External event detection interrupt with time stamp combined with programmable password, offers security solutions against fraud and hacking.

Ultra-small footprint and compact size with reliable vacuum-sealed metal lid provides all advantages of SMT fully integrated and easily implementable device for miniature and cost sensitive high volume applications.

Features

Performances

  • Factory Calibrated Temperature Compensation:
    • -40 to +85 °C
  • High Time-Accuracy:
    • ± 3.0 ppm (+40° to +85°C)
    • ±1.5 ppm (0 to +50°C)
  • Ultra-Low Power Consumption:
    • 160 nA @ 3 V & 25 °C
  • Wide Timekeeping Voltage Range:
    • 1.2 V to 5.5 V

Power Management

  • Automatic Backup Switchover with Interrupt Function
  • Trickle Charger with versatile Charge Pump allowing:
    • VBACK ≥ VDD
    • Use of 1.75 V TDK CeraCharge™
  • Supply Voltage Drop Detection (1.2 V) with Interrupt

Tamper Detection / Fraud Protection

  • Timestamped External Event Input Detection with Interrupt
  • Programmable Password Protection against Hacking
  • Configuration EEPROM

Temperature Monitoring

  • 12-bit Temperature Sensor:
    • Accuracy: ± 1°C typ.
    • Resolution: (0.0625°C/step)
  • Timestamped & Programmable Temperature Window Detection with Interrupt

Standard Interrupt

  • Internal Power-On Reset
  • Periodic Countdown Timer
  • Periodic Time Update (seconds, minutes)
  • Alarm for date, hour and minute

Time & Frequency Functions

  • 100th seconds, seconds, minutes, hours, date, month, year and weekday
  • Automatic leap year correction
  • Programmable EEPROM Ageing Compensation
  • Programmable Clock Output for peripheral devices:
    • Crystal Mode:
      • 32.768 kHz, 1024 Hz, 64 Hz, 1 Hz
    • High-Frequency Clock mode:
      • 8192 Hz → 52 MHz with 8192 Hz steps and guaranteed output signal integrity

Memory Size

  • 16 Bytes of User RAM
  • 32 Bytes of User EEPROM

Communication Interface

  • I²C-bus interface 400 kHz

Reliability / Certification

  • 100%-Pb-free, ROHS-compliant
  • Automotive Qualification according to AEC-Q200 available

Applications

  • Metering
  • Wearables, Portables
  • IoT
  • Health Care
  • Industrial
  • Automotive
  • Key element for Power Management

Block Diagram

Dimension

Ordering Information