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EFM32WG Datasheet, PDF (5/834 Pages) List of Unclassifed Manufacturers – The EFM32WG Wonder Gecko is the ideal choice for demanding 8-, 16-, and 32-bit energy sensitive applications. | |||
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3 System Overview
...the world's most energy friendly microcontrollers
3.1 Introduction
The EFM32 MCUs are the worldâs most energy friendly microcontrollers. With a unique combination of
the powerful 32-bit ARM Cortex-M4, innovative low energy techniques, short wake-up time from energy
saving modes, and a wide selection of peripherals, the EFM32WG microcontroller is well suited for
any battery operated application, as well as other systems requiring high performance and low-energy
consumption, see Figure 3.1 (p. 7) .
3.2 Features
⢠ARM Cortex-M4 CPU platform
⢠High Performance 32-bit processor @ up to 48
⢠DSP instruction support and floating-point unit
⢠Memory Protection Unit
⢠Wake-up Interrupt Controller
⢠Flexible Energy Management System
⢠20 nA @ 3 V Shutoff Mode
⢠0.4µA @ 3 V Shutoff Mode with RTC
⢠0.65 µA @ 3 V Stop Mode, including Power-on Reset, Brown-out Detector, RAM and CPU
retention
⢠0.95 µA @ 3 V Deep Sleep Mode, including RTC with 32.768 kHz oscillator, Power-on
Reset, Brown-out Detector, RAM and CPU retention
⢠67 µA/MHz @ 3 V Sleep Mode
⢠230 µA/MHz @ 3 V Run Mode, with code executed from flash
⢠256/128/64 KB Flash
⢠32 KB RAM
⢠Up to 93 General Purpose I/O pins
⢠Configurable push-pull, open-drain, pull-up/down, input filter, drive strength
⢠Configurable peripheral I/O locations
⢠16 asynchronous external interrupts
⢠Output state retention and wake-up from Shutoff Mode
⢠12 Channel DMA Controller
⢠Alternate/primary descriptors with scatter-gather/ping-pong operation
⢠12 Channel Peripheral Reflex System
⢠Autonomous inter-peripheral signaling enables smart operation in low energy modes
⢠External Bus Interface (EBI)
⢠Up to 4x256 MB of external memory mapped space
⢠TFT Controller supporting Direct Drive
⢠Universal Serial Bus (USB) with Host and OTG support
⢠Fully USB 2.0 compliant
⢠On-chip PHY and embedded 5V to 3.3V regulator
⢠Integrated LCD Controller for up to 8Ã36 Segments
⢠Voltage boost, adjustable contrast adjustment and autonomous animation feature
⢠Hardware AES with 128/256-bit Keys in 54/75 cycles
⢠Communication interfaces
⢠3à Universal Synchronous/Asynchronous Receiver/Transmitter
⢠UART/SPI/SmartCard (ISO 7816)/IrDA (USART0)/I2S (USART1+USART2)
⢠Triple buffered full/half-duplex operation
⢠4-16 data bits
⢠2à Universal Asynchronous Receiver/Transmitter
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
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www.energymicro.com
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