Apollo ultra low power MCU from Ambiq Micro
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Ambiq Micro, a leader in ultra-low power integrated circuits, announces the Apollo family of four 32-bit ARM® Cortex-M4F microcontrollers (MCUs). In real-world applications, their energy consumption is typically 5 to 10 times lower than that of MCUs of comparable performance, resulting in far longer battery life in wearable electronics and other battery-powered applications. The dramatic reduction in energy consumption is achieved using Ambiq's patented Subthreshold Power Optimized Technology (SPOT) platform.
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Apollo ultra low power MCU from Ambiq Micro
- 1. Apollo How Disruptive Technology Has Redefined 'Low Power MCU' January 2015
- 2. Revolutionary Advances in Ultra-Low Power • Ambiq Micro is introducing the Apollo family of microcontrollers • Redefining ‘low power’ with up to 10x reduction in energy consumption • Core technology based on innovative subthreshold voltage operation
- 3. Subthreshold Power Optimized Technology (“SPOT”) 3 Subthreshold operation can reduce energy usage by up to 13X Energy (E) consumed is directly proportional to the square of the voltage (V) used: E ~ V2 1.8 V 0.5 V Voltage Time 0 0 0 1 1 ENERGY ENERGY Conventional Semiconductors 1.8 V 0.5 V Voltage Time 0 0 0 1 1 ENERGY ENERGY Ambiq’s SPOT approach Threshold Voltage ENERGY SAVINGS
- 4. Proven Technology • Uses standard, mainstream CMOS manufacturing process • Proven over 8 years of development • Extreme low power real-time clock (RTC) in production today 2005 2006 2007 2009 2010 processor memory 244m 305m 122m 181m processor memory 244m 305m 122m 181m 253 µm IMEM IMEM DMEM DMEM CORECORE 715 µm Proc CProc A IMEM CORE DMEM Proc B 253 µm 98 µm 2013 2014 RTC MCU
- 5. Introducing the Revolutionary Apollo MCU Active Mode 30µA/MHz Sleep Mode 100nA High Performance Cortex-M4F core Apollo MCUs deliver unrivaled combination of power and performance • Ambiq’s technology optimizes both active and sleep mode power • ARM CortexTM -M4F core at power levels below competing M0+ solutions
- 6. Competitive Comparison: ARM Cortex-M4F Ambiq STMicro Device Apollo STM32F401 Core Cortex-M4F Cortex-M4F Max VDD 3.8V 3.6V Active Mode 840uA @ 24Mhz 35 uA/MHz 7100uA @ 20 MHz1,2 355 uA/MHz Sleep Mode 100nA 2800nA Conditions: a. CoreMark algorithm unless otherwise noted b. Run from Flash (not SRAM) at 3.3V c. Peripherals disabled d. Power reduction techniques allowed as noted e. Typical numbers f. Sleep mode numbers assume timers are ON and no memory is retained Notes: 1. “Measurements performed with a reduced code that gives a consumption equivalent to CoreMark code” 2. STMicro’s adaptive real-time accelerator (ART) power reduction technique enabled Ambiq Atmel Device Apollo SAM4L Core Cortex-M4F Cortex-M41 Max VDD 3.8V 3.6V Active Mode 840uA @ 24Mhz 35 uA/MHz 186 uA/MHz @ 36 MHz2 100 uA/MHz @ 12 MHz3 Sleep Mode 100nA 1500nA4 10x better 28x better 5.3x better 15x better Conditions: a. CoreMark algorithm b. Run from Flash (not SRAM) at 3.3V c. Peripherals disabled d. Typical numbers Notes: 1. Atmel’s SAM4L devices DO NOT include the floating point unit 2. Best-case values using all power scaling methods (24MHz not listed) 3. Best-case values using all power scaling methods (24MHz not listed) 4. Uses Atmel’s lowest-power “BACKUP” mode with 1KHz clock running 3x better
- 7. Competitive Comparison: ARM Cortex-M0+ Ambiq Atmel Device Apollo SAM D20 Core Cortex-M4F Cortex-M0+ Max VDD 3.8V 3.6V Active Mode 840uA @ 24Mhz 35 uA/MHz 2374uA @ 24 MHz 99 uA/MHz Sleep Mode 100nA 3800nA Conditions: a. CoreMark algorithm b. Run from Flash (not SRAM) at 3.3V c. Peripherals disabled d. Typical numbers e. Sleep mode numbers assume timers are ON and no memory is retained Ambiq Silicon Labs Device Apollo EFM32 “Zero” Core Cortex-M4F Cortex-M0+ Max VDD 3.8V 3.8V Active Mode 840uA @ 24Mhz 35 uA/MHz 2760uA @ 24 MHz1 115 uA/MHz Sleep Mode 100nA 900nA2 2.8x better 38x better 3.3x better 9x better Conditions: a. CoreMark algorithm unless otherwise noted b. Run from Flash (not SRAM) at 3.3X c. Peripherals disabled d. Typical numbers e. Sleep mode numbers assume timers are ON and no memory is retained unless otherwise noted Notes: 1. Silicon Labs does not publish CoreMark numbers in its datasheet – only prime number calculations are given (this is misleading since CoreMark performs a larger variety of tasks) 2. Uses EM2 “Deep Sleep Mode” with timers on
- 8. Bringing Apollo to Wearable & IoT Devices • Wearables & IoT a key focus for Ambiq’s product family • Great proxy for all applications requiring low power • Extreme low power + high performance Cortex M4F core ideally suited to the emerging needs of these devices: – “Always on” sensors – Real context detection – Sensor hubs
- 9. Apollo MCUs Enable New Possibilities • Extend life from hours / weeks to months / years • Application can be in active mode and/or sleep mode as much as needed both are optimized Longer battery life More functionality More design options • Expanded power budget can be used to reduce the size and/or number of batteries • Enables creative design and packaging options • Expanded power budget can be used to add new features • Enables more appealing end products IMAGINE the possibilities
- 10. Ambiq Micro Apollo MCU Host Processor (optional) Radio Sensor #1 Sensor #2 Sensor #3 SPI / I2C Master, UART SPI / I2C Slave Port System Diagram Example Bluetooth 802.15.4 Wi-Fi Sub-GHz Accelerometer, Magnetometer, Gyroscope, Optical, Pressure, Microphone, Temperature, etc.
- 11. Family Summary Flash RAM Features Packages Apollo-512 512K 64K ARM Cortex M4F 24MHz 10-bit, 13-channel, 1MS/s ADC ±2ºC temperature sensor Low leakage comparator SPI master x 8 I2C master x 2 SPI / I2C slave UART RTC, LFRC, HFRC, XTAL Timers x 8 1.8V to 3.8V -40ºC to 85ºC 64-pin BGA 50 GPIO 4.5 x 4.5mm and 42-pin CSP 27 GPIO 2.4 x 2.77mm Apollo-256 256K 32K Apollo-128 128K 32K Apollo-64 64K 16K
- 12. Apollo MCU Status and Pricing Sampling now to key partners Production in spring 2015 10K prices starting at $1.50
- 13. Summary Ambiq delivers revolutionary advances in energy consumption Reduce or eliminate need for batteries Lower overall system power Maximize design options
- 14. Backup
- 15. Company Background • Founded in 2010 • Based on research performed at Univ. of Michigan from 2005-2010 • Investors include Kleiner Perkins, Austin Ventures, ARM Holdings
- 16. Measured Apollo Power Numbers 3.8V 3.3V Conditions CoreMark 32 µA/MHz 35 µA/MHz Typical silicon 25ºC Integer Math 29 µA/MHz 33 µA/MHz Sleep with no RAM retained 100 nA 100 nA Sleep with RAM retained 130 nA 130 nA ACTIVEMODESLEEPMODE