New Ultra-Low Family of Microcontrollers From Freescale Semiconductor

Entry-level JS16 microcontrollers designed to reduce cost and speed time to market for wireless PC peripherals and other USB devices

Freescale Semiconductor (now part of NXP) has released a new ultra-low-power family of QE microcontrollers (MCUs) with higher performance 8-bit devices designed to offer exceptionally low power consumption. These latest MCUs are engineered to enhance portable performance, extend battery life and improve energy efficiency for a wide range of embedded applications.

The power-efficient MC9S08QE32 (QE32) MCUs are well suited for power-sensitive wireless and battery-operated applications, including utility meters, HVAC and building controls, commercial smoke detectors and toys. They are also ideal for embedded developers who require higher performance and a rich peripheral set with multiple time-pulse modulation (TPM), general purpose IO (GPIO) and serial communications interface (SCI) channels. The devices’ high level of peripheral integration helps reduce component count and system cost and enhances design flexibility.

The QE32 devices address portable design requirements through optimized peripherals that enable lower operating voltage and current. QE32 MCUs are designed to run off of an ultra-low-power 32 kHz oscillator that consumes less than 7.3 microamps of current. The devices also include battery-saving features, such as two ultra-low-power stop modes, low-power run and wait modes, six microseconds wake-up time from stop mode, and clock gating registers to disable clocks or unused peripherals.

As part of the Flexis QE family, the QE32 MCUs are pin and software compatible with corresponding devices in Freescale's MC9S08QE family of ultra-low-power MCUs. This compatibility, along Freescale’s Controller Continuum, provides developers with a software-compatible roadmap from 8-bit to 32-bit architectures.

Features of the QE32 Microcontrollers include:

Up to 50.33 MHz HCS08 core
Up to 25.165 MHz bus frequency
Up to 32K flash, up to 2K RAM
Internal clock source (ICS)
Vreg w/ fast start-up time and low-regulation voltage
Communications: 2xSCI, SPI, IIC with broadcast mode
Ultra-low power 32 kHz oscillator
Optimized clock tree and clock gating techniques
1.8 - 3.6 V operation
48QFN, 44LQFP, 32LQFP, 28SOIC

The NXP website address is www.nxp.com
[Reprinted with kind permission from Freescale Semiconductor]

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