RV-3149-C3 | RTC SPI Bus With Castellated Package

Configurable Options
Time accuracy
Any
Option A (see specifications table)	A
Option B (see specifications table)	B
Operating temperature range
Any
-40 to +85°C
-40 to +125°C
Qualification
Any
Commercial
AEC-Q200 (Automotive)	A

Product Description

The RV-3149-C3 miniature real time clock module is ideal for engineers seeking an all-in-one solution with 4-wire SPI bus interface, and features a wealth of features in addition to the standard 24 hour clock and leap-year flag functionality calendar. Smart temperature compensation ensures tight stability of ±8ppm (equivalent to 0.7s per day) over the widest available temperature range of -40 to +125ºC, and only ±6ppm (equivalent to 0.56s per day) over more narrow ranges.

The RV-3149-C3 also includes backup battery input with switchover functionality, programmable trickle charge circuitry, an integrated temperature sensor with digital output, and 8 bytes user RAM and 2 bytes EEPROM. Good shock and vibration resistance and optional AEC-Q200 qualification in addition to a miniature surface mount package with side castellations make this an ideal timing solution for a wide range of projects.

Specifications

Frequencies (selectable)	32.768kHz, 1024Hz, 32Hz & 1Hz
Dimensions	3.7 x 2.5 x 0.9mm
Frequency tolerance @ 25°C	±10ppm typ, ±20ppm max
Time accuracy (option A)	±3ppm max (0.26s/day), 25°C ±4ppm max (0.35s/day), -0+50°C ±5ppm max (0.43s/day), -10+60°C ±6ppm max (0.52s/day), -40+85°C ±8ppm max (0.69s/day), -40+125°C
Time accuracy (option B)	±3ppm max (0.26s/day), 25°C ±5ppm max (0.43s/day), -0+50°C ±10ppm max (0.86s/day), -10+60°C ±25ppm max (2.16s/day), -40+85°C ±30ppm max (2.59s/day), -40+125°C
Storage temperature range	-55 to +125°C
Supply voltage (V_DD)	Ditigally temperature compensated 2.1 ~ 5.5V SPI bus active 1.4 ~ 5.5V Time-keeping mode 1.3 ~ 5.5V
Supply current (V_DD=3.0V)	0.80µA typ, 1.0µA max
Shock and vibration resistance	±5ppm, 5,000g, 0.3ms, ½ sine ±5ppm, 20g, 10.0 ~ 2,000Hz
Soldering condition	Reflow, 260°C, 20 sec max

Package Drawing

Ordering Information

To request a quotation for the RV-3149-C3 please use the configurable options form to choose the options you require and then submit your configured product to our team. Our expert advisers are always happy to help with your requirements and can be contacted on +44 1460 256 100 or at sales@golledge.com.

Following product selection you will be issued with a seven character Golledge part number. Your Golledge part number is the internationally accepted Golledge manufacturing part number (MPN) that should be used for all project documentation, including bills of materials (BoMs) and purchase orders.

If you have any queries regarding any of our documentation our dedicated sales team will be happy to help.

Technical Resources

RV-3149-C3_App-Manual.pdf

Applications

The RV-3149-C3 real time clock is a versatile component suitable for a wide range of applications and uses including:

Automotive including car radio, GPS and other tracking systems, dashboard devices, tachometers, entertainment systems, and engine control
Industrial and consumer electronics
Metering including E-meter and heating counters
Outdoor including ATM and POS systems, surveillance and safety systems, and ticketing systems
Portable devices
White goods