ARM Cortex-M0 microcontroller is optimized for smart meters
May 29, 2012 // Paul Buckley
Toshiba Electronics Europe is launching a 32-bit RISC microcontroller built around the ARM Cortex-M0 processor core. The new TMPM061 is also Toshiba's first Cortex-M0 device specifically designed for smart metering applications.
The microcontroller allows designers to replace the conventional two-chip analog front end (AFE) and processor approach to smart meter design with a single IC.
ARM’s smallest processor, the ARM Cortex-M0 delivers small silicon area, low power and minimal code footprint, making it ideal for smart meter designs. Toshiba has used this core for its new microcontroller’s main CPU, while deploying an on-board DSP power calculation engine to simplify smart meter power measurement. The power calculation engine can calculate active energy, reactive energy and power factor as well as monitoring voltage and frequency fluctuation. Flexibility is enhanced as the basic energy use calculation function can be updated and modified by the developer as necessary.
As well as the power calculation engine the TMPM061 offers a variety of on-board functions that will minimize the component count of smart meter designs. These include a three-channel, high-precision 24-bit Delta-Sigma (∆∑) analogue-to-digital converter (ADC), a 10-bit ADC and a temperature-compensated real-time clock (RTC). The ∆∑ ADC supports simultaneous sampling at up to 6 kHz and has a SINAD (signal-to-noise and distortion ratio) that is suitable for a residential meter.
Toshiba is providing the TMPM061 with up to 128 Kbytes of on-chip Flash ROM and 8Kbytes of available on-chip RAM. Additional on-board peripherals include a 9-channel, 16-bit timer, a controller for directly driving an LCD display, a temperature sensor, a voltage detection circuit and a watchdog timer. Integrated connectivity comprises a 5-channel general-purpose serial interface (selectable between UART mode and synchronous mode) and a serial bus interface. The latter offers a choice of I 2 C bus mode or synchronous mode operation.
The TMPM061FWFG is supplied in a 14 mm x 14 mm 100-pin LQFP package and will operate with input voltages from 1.8 V to 3.6 V. Maximum operating frequency is 16 MHz. Four standby modes (IDLE, SLOW, SLEEP, STOP) ensure minimum power consumption for a range of conditions.
Samples of the new microcontroller will be available from August 2012, with mass production scheduled for December 2012.
Visit Toshiba Electronics Europe at www.toshiba-components.com
Chip market for wireless sensor networks on 23% CAGR
November 27, 2014
The number of Internet connection will grow from 9 billion in 2014 to 100 billion devices by 2020, according to market research ...
Biometric credit card ready for mass production, says Card Tech
New class of layered materials drive PV innovations
Lauterbach, Symtavision intermesh software for better safety
Mouser launch design contest around NXP's dual PCB configurable logic
UHF could usher in 'super-Wi-Fi'
November 26, 2014
Today Wi-Fi is everywhere and even carriers are looking at what is called 'Carrier Wi-Fi' to offload data from their congested ...
Smart PCBs for smaller ECUs: Infineon invests in PCB manufacturer
FTTH solutions for MDUs
Tiny LED makes bionic contact lenses realistic
- Common Mode Rejection in Wide Input Range Op Amps
- Power Systems Design eBook
- Halogen-free options and increased performance for terminal blocks
- Wireless Power User Guide
InterviewCEO interview: Vicor powers after higher volume applications
Patrizio Vinciarelli, is one of the longest serving CEOs in electronics, having founded Vicor in 1981 and led the company ever since. At Electronica he told EE Times Europe that his company is investing ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Cherry is giving away five of its Energy Harvesting Evaluation kits, worth over 266 Euros each, for EETimes Europe's readers to win. Cherry's energy harvesting technology benefit mostly applications where a complex wire assembly and/or batteries would be inappropriate.
The required RF-energy is created by the mechanical actuation of the switch and the data is transmitted...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.
Most popular news
- Could magnesium battery innovation end lithium's dominance?
- From warm to cool white: colour-temperature tunable LEDs
- Li-Fi communication module wirelessly transfers data at 1-Gbps
- Supercapacitor innovation promises panel-powered cars in five years
- Rebranding the revolution: the future of IoT is embedded