Samsung S3F4A1HR

The Samsung S3F4A1HR is an ARM7TDMI-S based high-performance 32-bit RISC Microcontroller with Thumb extensions 512KB + 32KB on-chip Flash ROM with In-System Programming (ISP) and In-Application Programming (IAP), 16KB RAM, CPU clock up to 40 MHz, On-chip internal ring oscillator (typ. 1MHz), On-chip PLL two CAN 2.0b, LCD Controller, 7 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, 4 Stepper Motor Controllers, 2 Stamp Timers (STT), 16 channel 10bit ADC, 3 UARTs, 2 IIC, SPI, Watchdog, Clock Manager, Low Voltage Detector, Power on Reset, 74 General purpose I/O pins.