SILICON LABS SIM3L156-C-GMR

High-performance, low-power, 32-bit Precision32™ microcontroller family with up to 256 kB of Flash memory.

• 32-bit ARM Cortex-M3 CPU
  • 50 MHz maximum frequency
  • Single-cycle multiplication, hardware division support
  • Nested vectored interrupt control (NVIC) with 8 priority levels
• Memory
  • 32–256 kB flash, in-system programmable
  • 8–32 kB SRAM with configurable low power retention
• Clock Sources
  • Internal oscillator with PLL: 23–50 MHz
  • Low power internal oscillator: 20 MHz
  • Low frequency internal oscillator (LFO): 16.4 kHz
  • External real-time clock (RTC) crystal oscillator
  • External oscillator: Crystal, RC, C, CMOS clock
• Power Management
  • Three adjustable low drop-out (LDO) regulators
  • Power-on reset circuit and brownout detectors
  • DC-DC buck converter allows dynamic voltage scaling for maximum efficiency (250 mW output)
  • Multiple power modes supported for low power optimization
• Low Power Features
  • 75 nA typical current in Power Mode 8
  • Low-current RTC (180 nA from LFO, 300 nA from crystal)
  • 4 μs wakeup, register state retention and no reset required from lowest power mode
  • 175 μA/MHz at 3.6 V executing from flash
  • 140 μA/MHz at 3.6 V executing from SRAM
  • Specialized on-chip charge pump reduces power consumption
  • Process/Voltage/Temperature (PVT) Monitor
• 5 V Tolerant Flexible I/O
  • Up to 62 contiguous 5 V tolerant GPIO with one priority cross­ bar providing flexibility in pin assignments
• Temperature Range: –40 to +85 ℃
• Supply Voltage: 1.8 to 3.8 V
• Analog Peripherals
  • 12-Bit Analog-to-Digital Converter: Up to 250 ksps 12-bit mode or 1 Msps 10-bit mode
  • 10-Bit Current-mode Digital-to-Analog Converter
  • 2 x Low-current comparators
• Digital and Communication Peripherals
  • 1 x USART with IrDA and ISO7816 Smartcard support
  • 1 x UART that operates in low power mode
  • 2 x SPIs, 1x120, 16/32-bit CRC
  • 128/192/256-bit Hardware AES Encryption
  • Encoder/Decoder: Manchester and Three-out-of-Six
  • Integrated LCD Controller: up to 160 segments (40x4), autocontrast and low power operation
• Timers/Counters
  • 3x32-bit or 6x16-bit timers with capture/compare
  • 16-bit, 6-channel counter with capture/compare/PWM and dead-time controller with differential outputs
  • 16-bit low power timer/advanced capture counter operational in the lowest power mode
  • 32-bit real time clock (RTC) with multiple alarms
  • Watchdog timer
  • Low power mode advanced capture counter (ACCTR)
• Data Transfer Peripherals
  • 10-Channel DMA Controller
  • 3 Channel Data Transfer Manager manages complex DMA transfers without core intervention
• On-Chip Debugging
  • Serial wire debug (SWD) with serial wire viewer (SWV) or JTAG (no boundary scan) allow debug and programming
  • Cortex-M3 embedded trace macrocell (ETM)