Silicon Laboratories, Inc. EFM8BB31F64G-QFN24

The Silicon Laboratories, Inc. EFM8BB31F64G-QFN24 is a High-speed pipelined CIP-51 (8051) MCU, 64KBytes Flash (62.5KB for user code), 256 Bytes Data RAM, 4096 Bytes XRAM. 20 Digital I/O lines, 1 12-bit ADC Unit with 12 Channels (up to 400 ksps), 4 12-bit DACs (up to 200 ksps), 4 Configurable Logic Units 2 Low-current analog comparators with adjustable reference [up to 6 (CMP0) or 6 (CMP1) external positive\negative inputs], 6-Channel Programmable Counter Array (PWM, Clock Generation, Capture/Compare) 2 UARTs (up to 3 Mbaud), 1 SPI (Master/Slave up to 12 Mbps), 1 SMBus / I2C (up to 400 kbps), and 1 High-Speed (3.4 Mbps) I2C-Slave bus. 1 16-bit CRC unit, 6 16-bit general-purpose timers, 1 Watchdog timer, On-Chip: Low-dropout (LDO) regulator, 3 x Oscillators (80kHz, 24,5MHz 49MHz), Power-On reset circuit, brownout detector, and the non-intrusive Silicon Labs 2-Wire (C2) debug interface.