top of page

Unveiling the C8 Series RTCs: Micro Crystal's Ultra-Small Real-Time Clock Modules


Image showing scale comparison of the tiny Micro Crystal C8 RTC modules

As the world of electronics continues to miniaturise, Micro Crystal leaps ahead with the introduction of their latest C8 series. This ultra-small Real-Time Clock (RTC) module series, dedicated to compact and lightweight designs, paves the way for engineers striving to create smaller and more efficient electronic devices.


The Innovation of the C8 Series RTCs

The C8 series stands as a testament to Micro Crystal's innovative prowess, combining a dedicated CMOS RTC chip with a minuscule quartz crystal, all encased in a compact 2.0 x 1.2 mm 8-pin ceramic case. This integration enables a low-profile design of 0.7 mm, further enhancing the series' compactness and weight (5.1 mg).

Embracing a vacuum-sealed metal lid, the C8 series ensures reliability whilst offering ultra-lightweight RTC components. What's truly noteworthy is that despite a 50% reduction in footprint at a mere 2.4 mm², the C8 series retains the high performance of its C7 predecessors. The RV-8063-C8 and RV-8263-C8, with SPI and I²C bus interfaces respectively, represent the epitome of standalone nano-power (190 nA) timekeeping functions on your PCB when size is crucial.


RV-8063-C8: Embodying Miniaturisation and Efficiency

The RV-8063-C8 emerges as an ultra-small CMOS real-time clock/calendar module designed for low power consumption and optimised for high volume, cost-sensitive applications. It incorporates an offset register, compensating for any frequency deviation of the 32.768 kHz clock. Furthermore, the SPI-bus interface enables a rapid data transfer rate of up to 7 Mbit/s.

Key features of the RV-8063-C8 include:

  • Low power consumption: 190 nA @ 3 V

  • Wide operating voltage range: 0.9 V to 5.5 V

  • Time accuracy: ±20 ppm @ 25°C

  • Operating temperature range: -40 to +85°C

  • User programmable offset value and oscillator stop detection

  • Comprehensive clock and calendar functions

  • Timer and alarm functions

  • Clock output frequencies: 32.768 kHz to 1 Hz

  • Potential for automotive qualification according to AEC-Q200

This makes the RV-8063-C8 ideal for a range of applications including IoT, metering, industrial, automotive, healthcare, and wearables.


Download the data sheet for the RV-8063-C8

Download the RV-8063-C8 Data Sheet


RV-8263-C8: Combining Compactness with Functionality

Specially designed for miniature, cost-sensitive, high volume applications, the RV-8263-C8 incorporates the 32.768 kHz crystal unit with the CMOS-based oscillator and RTC circuitry within a compact 2.0 x 1.2 x 0.7 mm SMD ceramic package.

Key features of the RV-8263-C8 include:

  • Low power consumption: 190 nA @ 3 V

  • Wide operating voltage range: 0.9 V to 5.5 V

  • Time accuracy: ±20 ppm @ 25°C

  • Operating temperature range: -40 to +85°C

  • User programmable offset value and oscillator stop detection

  • Comprehensive clock and calendar functions

  • Timer and alarm functions

  • Clock output frequencies: 32.768 kHz to 1 Hz

  • I²C-bus interface: 400 kHz

  • RoHS-compliant and 100% Pb-free

  • Potential for automotive qualification according to AEC-Q200

These features culminate to make the RV-8263-C8 ideal for a variety of applications such as IoT, metering, industrial, automotive, healthcare, and wearable devices.

Download the data sheet for the RV-8263-C8

Download the Data sheet for the RV-8263-C8


Applications of the C8 Series

The C8 series RTC modules, with their compactness and high reliability, are optimal for a variety of applications. These include:

  • Internet of Things (IoT): The modules' small size, low power consumption, and high reliability make them perfect for IoT devices which often need to operate efficiently in constrained environments.

  • Metering: The modules' accurate timekeeping functions are critical for metering applications, where precise time and date tracking is required.

  • Industrial: In industrial applications, the high temperature operating range and robustness of the modules ensure reliable performance.

  • Automotive: The automotive sector can benefit from the modules' potential for automotive qualification according to AEC-Q200.

  • Healthcare: The modules' low power consumption and small footprint are beneficial for healthcare devices, especially portable ones.

  • Wearables and Portables: The modules' compactness, light weight, and low power consumption make them ideal for wearable technology.

In summary, Micro Crystal's C8 series represents a significant advance in RTC modules, offering a unique combination of compactness, low power consumption, and functionality. With this introduction, the opportunities for electronics designers are widened, allowing for smaller, lighter, and more efficient device designs.


Limited samples are available for the RV-8263-C8s now, with MP in Mid Q4 2023. RV-8063-C8 samples will start being available in Aug 2023. Demo boards for both available in Q4 2023. Contact Ineltek in a timely manner to secure your allocation.


32 views

Comentários


bottom of page