EZR32LG, Leopard Gecko 128kB M3,+20dBm Pro2+,QFN64, Tray

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EZR32LG230 Wireless MCU family with ARM Cortex-M3 CPU and sub-GHz Radio

The EZR32LG Wireless MCUs are the latest in Silicon Labs family of wireless MCUs delivering a high performance, low energy wireless solution integrated into a small form factor package. By combining a high performance sub-GHz RF transceiver with an energy efficient 32-bit MCU, the EZR32LG family provides designers the ultimate in flexibility with a family of pin-compatible devices that scale with 64/128/256 kB of flash and support Silicon Labs EZRadio or EZRadioPRO transceivers. The ultra-low power operating modes and fast wake-up times of the Silicon Labs energy friendly 32-bit MCUs, combined with the low transmit and receive power consumption of the sub-GHz radio, result in a solution optimized for battery powered applications.

Key Features:
• Silicon Labs’ first 32-bit Wireless MCUs
• Based on ARM Cortex M3 (LG) and M4 (WG) CPU cores with 256 kB of flash and 32 kB RAM
• Best-in-class RF performance with EZradio and EZRadioPro transceivers
• Ultra-low power wireless MCU
• Low transmit and receive currents
• Ultra-low power standby and sleep modes
• Fast wake-up time
• Low Energy sensor interface (LESENSE)
• Rich set of peripherals including 12-bit ADC and DAC, multiple communication interfaces (UART, SPI, I2C), multiple GPIO and timers
• AES Accelerator with 128/256-bit keys

32-Bit ARM Cortex wireless MCUs applications include the following:
• Energy, gas, water and smart metering
• Health and fitness applications
• Consumer electronics
• Alarm and security systems
• Building and home automation

Symmetry Electronics (and its e-commerce division: SemiconductorStore.com) is an authorized Silicon Labs distributor.


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MCU Features
ARM Cortex-M3 CPU platform
Up to 48 MHz
64/128/256 kB Flash w/32 kB RAM
Hardware AES with 128/256-bit keys
Flexible Energy Management System
20 nA @ 3 V Shutoff Mode
0.65 A @ 3 V Stop Mode
211 A/MHz @ 3 V Run Mode
4 Timer/Counter
43 Compare/Capture/PWM channels
Low Energy Timer
Real-Time Counter
16/8-bit Pulse Counter
Watchdog Timer
Communication interfaces
2 Low Energy UART
2 I2C Interface with SMBus support
Ultra low power precision analog peripherals
12-bit 1 Msamples/s ADC
On-chip temperature sensor
12-bit 500 ksamples/s DAC
2 Analog Comparator
2x Operational Amplifier
Low Energy Sensor Interface (LESENSE)
Up to 41 General Purpose I/O pins
RF Features
Frequency Range
142-1050 MHz
Receive sensitivity up to -133 dBm
Up to +20 dBm max output power
Low active power consumption
10/13 mA RX
18 mA TX at +10 dBm
6 mA @ 1.2 kbps (Preamble Sense)
Data rate = 100 bps to 1 Mbps
Excellent selectivity performance
69 dB adjacent channel
79 dB blocking at 1 MHz
Antenna diversity and T/R switch control
Highly configurable packet handler
TX and RX 64 byte FIFOs
Automatic frequency control (AFC)
Automatic gain control (AGC)
IEEE 802.15.4g compliant
System Features
Power-on Reset and Brown-Out Detector
Debug Interface
Temperature range -40 to 85 C
Single power supply 1.98 to 3.8 V
QFN64 package

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