Samsung S3F4A2FR

The Samsung S3F4A2FR is an ARM7TDMI-S based high-performance 32-bit RISC Microcontroller with Thumb extensions 256KB + 32KB on-chip Flash ROM with In-System Programming (ISP) and In-Application Programming (IAP), 8KB RAM, CPU clock up to 20 MHz, On-chip internal ring oscillator (typ. 1MHz), On-chip PLL CAN 2.0b, 5 channel Lite Direct Memory Accesses (LDMA), Interrupt Controller (GIC), three 16bit General Purpose Timers (GPT), four 16bit Simple Timers (ST), 16bit Capture Module, 2 (16bit) + 8 (8bit) PWM channels, 2 Stamp Timers (STT), 16 channel 10bit ADC, 2 UARTs, IIC, 2 SPI, Watchdog, Clock Manager, Low Voltage Detector, Power on Reset, 59 General purpose I/O pins.