Real Time Clocks - Modules

Our Real Time Clock Modules have the Real Time Clock IC and the 32 kHz Crystal integrated in the same package. Their small size allows user to reduce space on the PCB and uses the space much more efficient. The miniature SMD ceramic packages C3 is lead-free and RoHS compliant.

With the built-in digital temperature compensated crystal oscillator, no frequency tuning over a wide temperature range is required.

The RTC module unloads the system controller, runs independent of the system power with an alternative external source and provides anytime a very accurate time stamp or sends a wake up signal to a peripheral subsystem without loading the system controller.

The modules are made for highly accurate time keeping, wide temperature range and high quality requirements for industrial applications such as utility meters, white goods, alarm systems, point of sales, smart cards, event recorders, wireless sensors, tags, digital cameras, portable navigations and automotive electronics.

Modules
IC & Crystal

V3022

RV-3049-C3
Supply Voltage
2.0V – 5.5V
2.0V – 5.5V
2.0V – 5.5V
1.4V – 5.5V
1.4V - 5.5V
1.5V – 5.5V
Current Consumption
1.2uA
1.2uA
1.2uA
800nA
800nA
240nA
Temperature Range
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 125°C
-40°C to 85°C
-40°C to 125°C
0°C to 50°C
-40°C to 85°C
Data Bus
8bit parallel
8bit parallel
8bit parallel
I2C
SPI I2C
Temperature Compensated
Time Accuracy
Yes
Yes
Yes
Yes
3ppm @ 25°C
6ppm @ -40°C - 85°C
Yes
3ppm @ 25°C
6ppm @ -40°C - 85°C
Yes
1.5ppm @ 0°C - 50°C
3ppm @ -40°C - 805C
Battery Switch Over
- - - Yes Yes -
Timer, Alarm Interrupt Yes Yes Yes Yes Yes Yes
Trickle Charger - - Yes Yes Yes -
Time stamp, Event Input - - - - - Yes
User RAM
User EEPROM
 
16 Bytes
 
16 Bytes
 
8 Bytes
2 Bytes
8 Bytes
2 Bytes
min 1Byte, max 6Byte
Features
 
Sync with 50Hz
Sync with 50Hz
AEC-Q200
Temp sensor out
AEC-Q200
Temp sensor out
AEC-Q200
Package
SO28
SO28
SO28
Ceramic C3
(3.2 x 5.0mm)
RoHS & lead free
Ceramic C3
(3.2 x 5.0mm)
RoHS & lead free
Ceramic C37
(1.5 x 3.2mm)
RoHS & lead free

 

Part # Description
RV-3029-C3 Real Time Clock Module with I2C-Bus
RV-3049-C3 Real Time Clock Module with SPI-Bus
RV-8803-C7 Real Time Clock Module with I2C-Bus, Ultra Low Power
V3022 Very Low Power 8-Bit 32kHz RTC Module (with built-in quartz crystal) with Digital Trimming
V3023 Very Low Power 8-Bit 32kHz RTC Module (with built-in quartz crystal) with Digital Trimming and User RAM
V3025 Very Low Power 8-Bit 32kHz RTC Module (with built-in quartz crystal) with Digital Trimming, User RAM and Battery Switch-over