NXP Semiconductors unveiled its LPC1100L and LPC1300L microcontrollers which spearhead a new low-power platform combining ultra-low leakage design techniques with NXP’s optimised power-efficient libraries. In addition, the MCUs feature unique API-driven power profiles which provide users with ready-to-use power management templates.
This makes them a compelling energy-efficient solution for lighting controllers, digital power conversion and management systems, portable battery-powered consumer products and accessories.
Based on the ARM Cortex-M0 processor, the LPC1100L microcontroller delivers low 32-bit active power consumption at 130 μA/MHz and reduces deep sleep current by 60%. The LPC1300L, based on the Cortex-M3 processor, benefits from similar gains in power efficiency while providing a performance boost up to 72 MHz, and is pin- and peripheral-compatible with the LPC1100L.
The API-driven power profiles featured in the LPC1100L and LPC1300L provide users with ready-to-use power management templates. The power profiles can be customised for any low-power application, allowing designers to reach ideal power levels with minimal application intervention. The power profiles serve as an excellent alternative to non-configurable low power modes, as they can conduct dynamic power management and optimise CPU operation for various application states. Optimised for CPU performance, CPU efficiency and lowest active current, the power profiles enable maximum operating frequency through the entire voltage range from 1,8 V to 3,6 V without compromising speed or functionality.
In CPU Performance mode, the microcontroller is configured to increase CPU throughput by providing more processing capability to the application. CoreMark benchmark results have proven that scores increase by 35% when compared to regular operation. The CPU Efficiency mode is designed to deliver a fine balance between the CPU’s ability to execute code, process data, and at the same time lower active current consumption. The lowest active current mode is intended for applications that focus on lowering active current, keeping the CPU’s high processing capabilities available as required. CoreMark benchmarks have shown a 20 to 30% improvement in power consumption when this mode is enabled.
In addition to its underlying process and system driven power improvements, the LPC1100L and LPC1300L series microcontrollers provide numerous features, including:
* 32 vectored interrupts; four priority levels; dedicated interrupts on up to 13 GPIOs.
* UART, 1-2 SSP, I²C (FM+) as serial peripherals.
* Two 16-bit and two 32-bit timers with PWM/match/capture.
* 12 MHz internal RC oscillator with 1% accuracy over temperature and voltage.
* Power-on-reset (POR); multilevel brown-out-detect (BOD); phase-locked loop (PLL).
* 8-channel, 10-bit ADC with ±1 LSB DNL.
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