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8/16bit MCUs claim lowest sleep current

Posted: 28 Apr 2009 ?? ?Print Version ?Bookmark and Share

Keywords:microcontroller? MCU lowest sleep current? 8/16bit MCU?

nanoWatt XLP MCUs

Microchip Technology Inc. has launched its next-generation low-power PIC microcontroller families with nanoWatt XLP eXtreme Low Power Technology for sleep currents as low as 20nA.

The three new 8- and 16bit MCU families join three other recent 8bit families that are all part of Microchip's nanoWatt XLP portfolio, providing designers with a rich and compatible low-power migration path that includes on-chip peripherals for USB and mTouch sensing solutions. This combination of low power consumption and functionality makes these PIC MCUs ideal for any battery-powered or power-constrained application.

"Microchip's new nanoWatt XLP families of PIC microcontrollers have surpassed the competition by a substantial margin to offer a new industry benchmark for the lowest sleep current consumption,? said Tony Massimini, chief of technology at Semico Research Corp. "When you factor in the integration of EEPROM, oscillators, USB and capacitive touch sensing peripherals, the potential reduction in system-level power consumption is quite substantial.?

Three of nanoWatt XLP Technology's key advantages are: Sleep currents down to 20nA, Real-Time Clock currents down to 500nA, and Watchdog Timer currents down to 400nA. The vast majority of low-power applications require one or more of these features. nanoWatt XLP Technology combines all three in a comprehensive portfolio of devices. Whether it is extended battery life, sealed batteries, or the integration of energy harvesting, Microchip's 8- and 16bit PIC MCUs with nanoWatt XLP Technology provide more freedom for designers that need their products to operate longer using less power, or requiring fewer battery changes.

"The extremely low sleep current and numerous wake-up features of Microchip's new nanoWatt XLP microcontrollers should be ideal for battery-operated devices, which actually spend most of the time asleep,? said Tom Starnes, embedded processor analyst at the semiconductor research firm Objective Analysis. "The interest in the market for such low-power processors, for use in consumer to industrial applications, is really on the rise.?

The three new nanoWatt XLP MCU families include the four-member, 16bit PIC24F16KA family, which features typical sleep currents as low as 20nA along with integrated EEPROM memory, and small-footprint and low pin count (20- and 28-pin) package options. Additionally, this family enables applications to run for more than 20 years from a single battery. The six-member PIC18F46J11 and the six-member PIC18F46J50 8bit MCU families feature typical sleep currents of less than 20nA. The general-purpose PIC18F46J11 MCUs provide up to 64Kbyte of Flash program memory and the peripheral set of a typical 64- or 80-pin device in only 28- or 44-pins; while the PIC18F46J50 devices add integrated full-speed USB 2.0 to enable connectivity for embedded applications requiring remote field upgrades or the downloading of data.

"Through significant investment in our new nanoWatt XLP Technology, which combines enhanced design techniques and new features, Microchip has driven power consumption to new lows, surpassing the industry and becoming the new leader in low-power microcontrollers,? said Mitch Obolsky, VP of Microchip's advanced microcontroller architecture division.

Key benefits
Numerous applications can benefit from the extreme low power and peripheral integration of the nanoWatt XLP MCUs. Examples include portable and battery-powered applications in the consumer, industrial, automotive and medical markets.

In addition, owners of the Explorer 16 development board can purchase a $25 PIC24F16KA plug-in module (part # MA240017) for development with this new 16bit family. Likewise, owners of the PIC18 Explorer Board can purchase a $25 plug-in module for development with the new PIC18F46J11 general-purpose 8bit MCUs (part # MA180023). The new PIC18F46J50 USB 8bit MCUs are supported by the new $45 PIC18F46J50 FS USB Demo Board (part # MA180024), which also plugs into the PIC18 Explorer Board. All nanoWatt XLP MCUs are supported by Microchip's development tools, including the free MPLAB IDE, the MPLAB REAL ICE emulation system, the MPLAB ICD 3 in-circuit debugger, the PICkit 3 low-cost debugger/programmer and Microchip's free C compilers.

Availability
The four PIC24F16KA 16bit family members are available for general sampling and volume production, with prices starting at $1.38 each in 10,000-unit quantities. The 20-pin package options for the PIC24F08KA101 and PIC24F16KA101 MCUs are: QFN, SSOP, SOIC and PDIP. The 28-pin package options for the PIC24F08KA102 and PIC24F16KA102 MCUs are: QFN, SSOP, SOIC and SPDIP.

The six PIC18F46J11 general-purpose 8bit family members are available for general sampling and volume production, with prices starting at $1.58 each in 10,000-unit quantities. The 28-pin package options for the PIC18F24J11, PIC18F25J11 and PIC18F26J11 MCUs are: QFN, SSOP, SOIC and SPDIP. The 44-pin package options for the PIC18F44J11, PIC18F45J11 and PIC18F46J11 MCUs are: QFN and TQFP.

The six PIC18F46J50 USB 8bit family members are available for general sampling and volume production, with prices starting at $1.78 each in 10,000-unit quantities. The 28-pin package options for the PIC18F24J50, PIC18F25J50 and PIC18F26J50 MCUs are: QFN, SSOP, SOIC and SPDIP. The 44-pin package options for the PIC18F44J50, PIC18F45J50 and PIC18F46J50 MCUs are: QFN and TQFP.





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