Silicon Laboratories, Inc. C8051F973

The Silicon Laboratories, Inc. C8051F973 is a High-speed 8051 MCU with 25 MIPS, 16KBytes ISP-Flash, 256 Bytes Data Ram, and 4KBytes XRAM. 1 10-bit ADC Unit with 43 channels. 43 GPIOs. 4 general purpose 16-bit timer/counters. 128-bit unique key for each device. Direct Memory Access (DMA) module with 7-channel. 1-cycle 16 x 16 Multiply and Accumulate (MAC) Engine. 16-bit Programmable Counter Array (PCA) with 3 channels of PWM, capture/compare, or frequency output capability, and watchdog timer. High Speed (3.4 Mbps) I2C slave inteface. System Management Bus up to 400 kbs. 2 Supply monitors (brownout detector) for sleep and active modes. 16/32-Bit CRC unit. Built-in LDO (low-dropout) regulator allows a high analog supply voltage and low digital core voltage. 1 operation mode and 7 low power modes. 32-Bit SmaRTClock Timer with dedicated 32 kHz low frequency oscillator (LFO). SPI Interface. UART Interface. On-chip debug circuitry C2.