EFM32 Leopard Gecko Family
EFM32LG Data Sheet
The EFM32 Leopard Gecko MCUs are the world’s most energy-
friendly microcontrollers.
The EFM32LG offers unmatched performance and ultra low power consumption in both
active and sleep modes. EFM32LG devices consume as little as 0.65 μA in Stop mode
and 211 μA/MHz in Run mode. It also features autonomous peripherals, high overall chip
and analog integration, and the performance of the industry standard 32-bit ARM Cortex-
M3 processor, making it perfect for battery-powered systems and systems with high-per-
formance, low-energy requirements.
EFM32LG applications include the following:
• Energy, gas, water and smart metering
• Health and fitness applications
• Smart accessories
• Alarm and security systems
• Industrial and home automation
KEY FEATURES
• ARM Cortex-M3 at 48 MHz
• Ultra low power operation
• 0.66 μA current in Stop (EM3), with
brown-out detection and RAM retention
• 63 μA/MHz in EM1
• 211 μA/MHz in Run mode (EM0)
• Fast wake-up time of 2 µs
• Hardware cryptography (AES)
• Up to 256 kB of Flash and 32 kB of RAM
Core / Memory
ARM Cortex
TM
M3 processor
Flash Program
Memory
RAM Memory
Memory
Protection Unit
Clock Management
High Frequency
Crystal Oscillator
Auxiliary High
Freq. RC Osc.
Low Frequency
Crystal Oscillator
High Frequency
RC Oscillator
Low Freq.
RC Oscillator
Ultra Low Freq.
RC Oscillator
Energy Management
Voltage
Regulator
Brown-out
Detector
Back-up Power
Domain
Voltage
Comparator
Power-on
Reset
Security
Hardware AES
Debug w/ ETM
DMA Controller
32-bit bus
Peripheral Reflex System
Serial Interfaces
USART
Low Energy
UART
TM
I/O Ports
External Bus
Interface
TFT Driver
Timers and Triggers
Timer/Counter
Low Energy Timer
Analog Interfaces
ADC
LCD Controller
Operational
Amplifier
UART
LESENSE
Real Time Counter
IC
2
External
Interrupts
Pin Reset
General
Purpose I/O
Pin Wakeup
DAC
Pulse Counter
Back-up RTC
Watchdog Timer
USB
Analog
Comparator
Lowest power mode with peripheral operational:
EM0 - Active
EM1 - Sleep
EM2 – Deep Sleep
EM3 - Stop
EM4 - Shutoff
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Rev. 2.10
EFM32LG Data Sheet
Feature List
1. Feature List
• ARM Cortex-M3 CPU platform
• High Performance 32-bit processor @ up to 48 MHz
• Memory Protection Unit
• Wake-up Interrupt Controller
• SysTick System Timer
• Flexible Energy Management System
• 20 nA @ 3 V Shutoff Mode
• 0.4 µA @ 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
• 63 µA/MHz @ 3 V Sleep Mode
• 211 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
• 12 Channel Peripheral Reflex System (PRS) for autonomous inter-peripheral signaling
• Hardware AES with 128/256-bit keys in 54/75 cycles
• Timers/Counters
• 4× 16-bit Timer/Counter
• 4×3 Compare/Capture/PWM channels
• Dead-Time Insertion on TIMER0
• 16-bit Low Energy Timer
• 1× 24-bit Real-Time Counter and 1× 32-bit Real-Time Counter
• 3× 16/8-bit Pulse Counter
• Watchdog Timer with dedicated RC oscillator @ 50 nA
• Integrated LCD Controller for up to 8×36 segments
• Voltage boost, adjustable contrast and autonomous animation
• Backup Power Domain
• RTC and retention registers in a separate power domain, available in all energy modes
• Operation from backup battery when main power drains out
• External Bus Interface for up to 4x256 MB of external memory mapped space
• TFT Controller with Direct Drive
• Communication interfaces
• Up to 3× Universal Synchronous/Asynchronous Receiver/Transmitter
• UART/SPI/SmartCard (ISO 7816)/IrDA/I2S
• 2× Universal Asynchronous Receiver/Transmitter
• 2× Low Energy UART
• Autonomous operation with DMA in Deep Sleep Mode
• 2× I
2
C Interface with SMBus support
• Address recognition in Stop Mode
• Universal Serial Bus (USB) with Host & OTG support
• Fully USB 2.0 compliant
• On-chip PHY and embedded 5V to 3.3V regulator
• Ultra low power precision analog peripherals
• 12-bit 1 Msamples/s Analog to Digital Converter
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Rev. 2.10 | 2
EFM32LG Data Sheet
Feature List
• 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 Comparator
• Capacitive sensing with up to 16 inputs
• 3× Operational Amplifier
• 6.1 MHz GBW, Rail-to-rail, Programmable Gain
• Supply Voltage Comparator
Low Energy Sensor Interface (LESENSE)
• Autonomous sensor monitoring in Deep Sleep Mode
• Wide range of sensors supported, including LC sensors and capacitive buttons
Ultra efficient Power-on Reset and Brown-Out Detector
Debug Interface
• 2-pin Serial Wire Debug interface
• 1-pin Serial Wire Viewer
• Embedded Trace Module v3.5 (ETM)
Pre-Programmed USB/UART Bootloader
Temperature range -40 to 85 ºC
Single power supply 1.98 to 3.8 V
Packages:
• BGA112
• BGA120
• CSP81
• LQFP100
• TQFP64
• QFN64
• Full wafer
•
•
•
•
•
•
•
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Rev. 2.10 | 3
EFM32LG Data Sheet
Ordering Information
2. Ordering Information
The following table shows the available EFM32LG devices.
Table 2.1. Ordering Information
Max Speed
(MHz)
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
Supply
Voltage (V)
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
Temperature
(ºC)
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
Ordering Code
EFM32LG230F64G-E-QFN64
EFM32LG230F128G-E-QFN64
EFM32LG230F256G-E-QFN64
EFM32LG232F64G-E-QFP64
EFM32LG232F128G-E-QFP64
EFM32LG232F256G-E-QFP64
EFM32LG280F64G-E-QFP100
EFM32LG280F128G-E-QFP100
EFM32LG280F256G-E-QFP100
EFM32LG290F64G-E-BGA112
EFM32LG290F128G-E-BGA112
EFM32LG290F256G-E-BGA112
EFM32LG295F64G-E-BGA120
EFM32LG295F128G-E-BGA120
EFM32LG295F256G-E-BGA120
EFM32LG330F64G-E-QFN64
EFM32LG330F128G-E-QFN64
EFM32LG330F256G-E-QFN64
EFM32LG332F64G-E-QFP64
EFM32LG332F128G-E-QFP64
EFM32LG332F256G-E-QFP64
EFM32LG360F64G-E-CSP81
EFM32LG360F128G-E-CSP81
EFM32LG360F256G-E-CSP81
EFM32LG380F64G-E-QFP100
EFM32LG380F128G-E-QFP100
EFM32LG380F256G-E-QFP100
EFM32LG390F64G-E-BGA112
EFM32LG390F128G-E-BGA112
EFM32LG390F256G-E-BGA112
EFM32LG395F64G-E-BGA120
EFM32LG395F128G-E-BGA120
Flash (kB)
64
128
256
64
128
256
64
128
256
64
128
256
64
128
256
64
128
256
64
128
256
64
128
256
64
128
256
64
128
256
64
128
RAM (kB)
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
Package
QFN64
QFN64
QFN64
TQFP64
TQFP64
TQFP64
LQFP100
LQFP100
LQFP100
BGA112
BGA112
BGA112
BGA120
BGA120
BGA120
QFN64
QFN64
QFN64
TQFP64
TQFP64
TQFP64
CSP81
CSP81
CSP81
LQFP100
LQFP100
LQFP100
BGA112
BGA112
BGA112
BGA120
BGA120
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Rev. 2.10 | 4
EFM32LG Data Sheet
Ordering Information
Max Speed
(MHz)
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
Supply
Voltage (V)
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
1.98 - 3.8
Temperature
(ºC)
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
-40 - 85
Ordering Code
EFM32LG395F256G-E-BGA120
EFM32LG840F64G-E-QFN64
EFM32LG840F128G-E-QFN64
EFM32LG840F256G-E-QFN64
EFM32LG842F64G-E-QFP64
EFM32LG842F128G-E-QFP64
EFM32LG842F256G-E-QFP64
EFM32LG880F64G-E-QFP100
EFM32LG880F128G-E-QFP100
EFM32LG880F256G-E-QFP100
EFM32LG890F64G-E-BGA112
EFM32LG890F128G-E-BGA112
EFM32LG890F256G-E-BGA112
EFM32LG895F64G-E-BGA120
EFM32LG895F128G-E-BGA120
EFM32LG895F256G-E-BGA120
EFM32LG900F256G-E-D1I
EFM32LG940F64G-E-QFN64
EFM32LG940F128G-E-QFN64
EFM32LG940F256G-E-QFN64
EFM32LG942F64G-E-BGA120
EFM32LG942F128G-E-BGA120
EFM32LG942F256G-E-BGA120
EFM32LG980F64G-E-QFP100
EFM32LG980F128G-E-QFP100
EFM32LG980F256G-E-QFP100
EFM32LG990F64G-E-BGA112
EFM32LG990F128G-E-BGA112
EFM32LG990F256G-E-BGA112
EFM32LG995F64G-E-BGA120
EFM32LG995F128G-E-BGA120
EFM32LG995F256G-E-BGA120
Flash (kB)
256
64
128
256
64
128
256
64
128
256
64
128
256
64
128
256
256
64
128
256
64
128
256
64
128
256
64
128
256
64
128
256
RAM (kB)
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
Package
BGA120
QFN64
QFN64
QFN64
TQFP64
TQFP64
TQFP64
LQFP100
LQFP100
LQFP100
BGA112
BGA112
BGA112
BGA120
BGA120
BGA120
Wafer
QFN64
QFN64
QFN64
BGA120
BGA120
BGA120
LQFP100
LQFP100
LQFP100
BGA112
BGA112
BGA112
BGA120
BGA120
BGA120
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Rev. 2.10 | 5
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