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Freescale unveils tiny 1.9 x 2.0mm microcontroller

01 Mar 2013

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Freescale Kinetis KL02

As electronic devices keep getting smaller, Freescale Semiconductor addresses the shrinking MCU device market by introducing the Kinetis KL02. The company said that its new MCU is the world's smallest ARM-powered MCU and is ideal for remote sensing nodes, portable consumer devices, wearable devices and ingestible medical sensing devices.

Measuring just 1.9 x 2.0 mm, the Kinetis KL02 MCU is 25 per cent smaller than the industry's next-smallest ARM MCU. Within this miniscule device, Freescale has included the latest 32bit ARM Cortex-M0+ processor, cutting-edge low-power functionality and a range of analogue and communication peripherals. This enables system designers to dramatically reduce the size of their boards and products while retaining the all-important performance, feature integration and power consumption characteristics of their end devices. In addition, space-constrained applications that previously couldn't incorporate an MCU now can be upgraded to become smart applications, adding a new tier of devices to the IoT ecosystem.

Building upon the Cortex-M0+ core, the Kinetis KL02 MCU reduces the power consumption threshold of the Kinetis L series to an even lower entry point and is ideal for the demanding power profiles of miniaturized, IoT-linked systems. The KL02 delivers 15.9 CM/mA and includes autonomous, power-smart peripherals, 10 flexible power modes and wide clock and power gating to minimise power loss. A low-power boot mode reduces power spikes during the boot sequence or deep sleep wake-up. This is useful for systems in which battery chemistry limits the allowable peak current, such as those employing lithium-ion batteries frequently used in portable devices.

Key features:

  • 48MHz ARM Cortex-M0+ core, 1.71-3.6V operation
  • Bit manipulation engine for faster, more code-efficient handling of peripheral registers
  • 32KB flash memory, 4KB RAM
  • High-speed 12bit analogue-to-digital converter
  • High-speed analogue comparator
  • Low-power UART, SPI, 2x IICI2C
  • Powerful timers for a broad range of applications including motor control
  • -40°C to +85°C operation

 Freescale Kinetis KL02

Availability and enablement

The Kinetis KL02 CSP MCU is expected to begin sampling in March 2013. Broad market availability of production-qualified samples is planned for July 2013 from Freescale and its distribution partners. Suggested resale pricing is $0.75 in 100,000-unit quantities.

The new FRDM-KL02 Freescale Freedom development platform and accompanying Freescale and third-party enablement support will also be available in July. Customers can start development with the FRDM-KL05Z Freescale Freedom development platform in late March. This contains the superset Kinetis KL05 MCU and provides access to the core, key peripherals and Freescale and third-party enablement.

To learn more, visit

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