RV-3032-C7+T

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 ± 2.5 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

• Factory Calibrated Temperature Compensation:
  • -40 to +85 °C
• High Time-Accuracy:
  • ± 2.5 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:
  • 1.3 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 (1.3 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

"Features

• RTC module with built-in Tuning Fork crystal oscillating at 32.768 kHz
• Factory calibrated, all built-in Temperature Compensation circuitry
• Time accuracy: Temperature Range
  • 25°C +/- 3 ppm
  • 0°C to + 50°C +/- 4 ppm
  • -10°C to + 60°C +/- 5 ppm
  • -40°C to + 85°C +/- 6 ppm
  • -40°C to +125°C +/- 8 ppm
• Ultra low power consumption: 800nA typ @ VDD = 3.0V / Tamb = 25°C
• Wide clock operating voltage: 1.3 5.5V
• Extended operating temperature range: -40°C to +125°C
• I²C serial interface with fast mode SCL clock frequency of 400 kHz
• Provides year, month, day, weekday, hours, minutes and seconds
• Main Power Supply to Backup Battery switchover circuitry with Trickle Charger
• Programmable CLKOUT pins for peripheral devices (32.768 kHz / 1024 Hz / 32 Hz / 1 Hz)