Ambiq Micro Apollo Low Power MCUs Promise Cortex M4F Performance at Cortex M0+ Energy Efficiency

Ambiq Micro is a US company founded in 2010 that focuses on “extremely low power” semiconductors leveraging their patented Subthreshold Power Optimized Technology (SPOT) platform. Earlier this year, they announced their first low power Cortex-M4F MCU Apollo family with claims of 5 to 10 times lower power consumption compared to other micro-controllers with the same performance. According to an EETimes article, they’ve at least partially backed their claims with a live demonstration at ARM TechCon 2015.   Before checking out the test results, let’s have a look at the main features of Apollo MCU family: 32-bit ARM Cortex-M4F processor @ up to 24 MHz, with FPU, and wake-up interrupt controller with 12 interrupts Up to 512KB flash, 64-KB low-leakage RAM “Rich set of timing peripherals” Peripherals I2C/SPI master; I2C/SPI; UART; 10-bit, 13-channel, 1MS/s ADC Temperature sensor with ±2°C accuracy Voltage Range –  1.8 to 3.8V Power Consumption: active mode: 30µA/MHz (executing from Flash) sleep mode (with RTC on) – 100nA Packages …

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ARM Introduces Cortex A35 64-bit Low Power Core, ARMv8-M Architecture for Secure MCUs

ARM TechCon 2015 has just started, and there have been a few announcements including the launch of a Cortex-A7 replacement with Cortex A35 providing 10% lower power consumption, 6 to 40% performance boost, and a better design flexibility making it suitable for SoC for smartphones to wearables. The main specifications of Cortex A35 cores: Architecture ARMv8-A (AArch32 and AArch64 ) Multicore 1-4x SMP within a single processor cluster, and multiple coherent SMP processor clusters through AMBA 5 CHI or AMBA 4 ACE technology ISA Support AArch32 for full backward compatibility with ARMv7 AArch64 for 64-bit support and new architectural features TrustZone security technology NEON Advanced SIMD DSP & SIMD extensions VFPv4 Floating point Hardware virtualization support Debug & Trace CoreSight DK-A35 The new core can both be used in quad core configuration at 1 GHz for a smartphone (90 mW per core), or in single core configuration at 100 MHz for wearables (6 mW) in a 0.4mm2 silicon footprint. Cortex-A35 …

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ARM TechCon 2015 Schedule – IoT, Servers, 64-bit ARM, Power Usage Optimization, and More

The ARM Technology Conference (ARM TechCon) will take place on November 10 – 12, 2015, in Santa Clara Convention Center, and just like every year, there will be a free exposition for companies to showcase their latest innovation and/or products, as well as a technical conference with sessions and workshops sorted into various tracks: Automotive/Embedded Vision Embedded IoT Mobile/Connectivity Networking Infrastructure/Servers Tools & Implementation Wearables/Sensors ARM Training Day Sponsored Vendor Training Special Event General Event Software Developers Workshop You can find the complete schedule on ARM TechCon website. Although I won’t attend, I’ve created my own virtual schedule with some of the sessions I found interesting. Tuesday – November 10 8:30 – 9:20 – ARM Vision for Thermal Management and Energy Aware Scheduling on Linux by Ian Rickards (ARM), Charles Garcia-Tobin (ARM), Bobby Batacharia (ARM) This talk will cover the history and where are we going, for ARM’s Power Software (IPA, EAS, and some concepts for the future). ARM will detail …

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