EFM32GG840F1024G-E-QFN64R Integrated Circuits (ICs)

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1. Describe

The EFM32GG840F1024G-E-QFN64R Giant Gecko MCU is the most energy-efficient microcontroller in the world. The EFM32GG offers unmatched performance and ultra-low power consumption in both active and sleep modes. The EFM32GG device consumes only 0.6 μA in stop mode and 180 μA/MHz in run mode. It also features autonomous peripherals, high overall chip and analog integration, and the performance of an industry-standard 32-bit ARM CortexM3 processor, making it ideal for battery-powered systems and systems with high-performance, low-power requirements.

2. Feature

    1. 48 MHz ARM Cortex-M3

    2. Ultra-low power operation

    3. 0.6 μA stop (EM3) current with brownout detection and RAM retention

    4. 45 μA/MHz in EM1

    5. 180 μA/MHz in run mode (EM0)

    6. Fast wake-up time of 2 µs

    7. Hardware encryption (AES)

    8. Up to 1024 kB Flash and 128 kB RAM

3. Application

    1. Smart metering

    2. Water metering

    3. Gas metering

    4. Industrial and Home Automation

    5. Alarm and security systems

    6. Health and fitness apps

4. Function list

    1. ARM Cortex-M3 CPU platform

        - High-performance 32-bit processor @ up to 48 MHz

        - DSP instruction support and floating point unit

        - Memory Protection Unit

    2. Flexible energy management system

        - 20 nA @ 3 V shutdown mode

        - 0.4 µA @ 3 V shutdown mode with RTC

        - 0.8 µA @ 3 V stop mode including power-on reset, brown-out detector, RAM and CPU retention

        - 1.1 µA @ 3 V deep sleep mode including RTC with 32.768 kHz oscillator, power-on reset, brown-out detector, RAM and CPU Booking

        - 80 µA/MHz @ 3 V sleep mode

        - 219 µA/MHz @ 3 V run mode, executing code from flash

    3. 1024/512 KB Flash

        - Read and write support

    4. 128KB RAM

    5. Up to 93 general purpose I/O pins

        - Configurable push-pull, open-drain, pull-up/pull-down, input filter, drive strength

        - Configurable peripheral I/O locations

        - 16 asynchronous external interrupts

        - Output state hold and shutdown mode wake-up

    6. 12-channel DMA controller

    7. 12-Channel Peripheral Reflex System (PRS) for Autonomous Peripheral Signaling

    8. Hardware AES with 128/256-bit keys in 54/75 cycles

    9. Timer/Counter

        - Four 16-bit timers/counters

        - 4×3 compare/capture/PWM channels

        - Deadband insertion on TIMER0

        - 16-bit low-power timer

        - 1 24-bit real-time counter and 1 32-bit real-time counter

        - 3× 16/8-bit pulse counter, asynchronous operation

        - Watchdog Timer @ 50 nA with dedicated RC oscillator

  10. Integrated LCD controller, maximum 8×36 segments

        - Voltage boost, adjustable contrast and autonomous animation

  11. Backup Power Domain

        - RTC and holding registers for all energy modes are in separate power domains

        - Operation on battery backup when mains power is depleted

  12. External bus interface, maximum 4x256 MB of external memory mapped space

        - TFT controller with direct drive

  13. Communication interface

        - Up to 3 Universal Synchronous/Asynchronous Receivers/Transmitters

        - UART/SPI/Smart Card (ISO 7816)/IrDA/I2S

        - 2 Universal Asynchronous Receivers/Transmitters

        - 2 low power UARTs

        - Autonomous operation with DMA in deep sleep mode

        - 2 I2C interfaces with SMBus support

        - Address recognition in stop mode

        - Universal Serial Bus (USB) with host and OTG support

        - Fully compatible with USB 2.0 

        - On-chip PHY and embedded 5V to 3.3V regulator

  14. Ultra-low-power precision analog peripherals

        - 12-bit 1 Msamples/s analog-to-digital converter

        - 8 single-ended channels / 4 differential channels

        - On-chip temperature sensor

        - 12-bit 500 ksamples/s digital-to-analog converter 

        - 2 single-ended channels / 1 differential channel

        - Up to 2 analog comparators

        - Capacitive sensing with up to 16 inputs

        - 3 op amps

        - 6.1 MHz GBW, rail-to-rail, programmable gain

        - Supply voltage comparator

  15. Low Energy Sensor Interface (LESENSE)

        - Autonomous sensor monitoring in deep sleep mode

        - Support for a variety of sensors, including LC sensors and capacitive buttons

  16. Ultra-efficient power-on reset and brown-out detector

  17. Debug interface

        - 2-pin serial wire debug interface

        - 1-pin serial line viewer

        - Embedded Tracking Module v3.5 (ETM)

  18. Pre-programmed USB/UART bootloader

  19. Temperature range -40 to 85 ºC

  20. Single supply 1.98 to 3.8 V

  21. Packaging:

        - BGA112

        - BGA120

        - LQFP100

        - TQFP64

        - QFN64

        - Full wafer

5. Pin configuration