S3C  -  Series DataSheet
S3C2440A40-YQR0  -  ARM920T core, a 16/32-bit RISC microprocessor  -  SAMSUNG Semiconductor  -  ARM

S3C2440X is a derivative product of Samsung’s S3C24XXX family of microprocessors for mobile communication market. The S3C2440X’s main enhancement over the baseline product, S3C2410X, is the addition of camera interface for multimedia messaging services.
The S3C2440X features an ARM920T core, a 16/32-bit RISC microprocessor, to provide hand-held devices and general applications with cost-effective, low-power, and high performance micro-controller solution in a small form-factor. The S3C2440X is developed using 0.13 um CMOS standard cell and a memory compiler. In addition, it adopts a new bus architecture called Advanced Microcontroller Bus Architecture (AMBA).
By providing a comprehensive set of common system peripherals, the S3C2440X minimizes the overall system costs and eliminates the need to configure additional components. The S3C2440 includes the following components: separate 16 KB instruction and 16 KB data cache, MMU to handle virtual memory management, TFT& STN LCD controller, NAND flash boot loader, system manager (chip select logic and SDRAM controller), 3-ch UART, 4-ch DMA, 4-ch timers with PWM, I/O ports, RTC, 8-ch 10-bit ADC and touch screen interface, camera interface, AC97 audiocodec interface, IIC-BUS interface, IIS-BUS interface, USB host, USB device, SD host & multimedia card interface, 2-ch SPI and PLL for clock generation.

Feature Summary
??S3C2440X is developed using ARM920T core, 0.13 um CMOS standard cells and a memory complier
??Operating frequency 300/400/533 MHz @1.2V
??A new bus architecture called Advanced Microcontroller Bus Architecture (AMBA)
??16 KB I-Cache and 16 KB D-Cache
??External memory controller with chip select logic
??LCD controller (up to 4K color STN and 256K color TFT) with 1-ch LCD dedicated to DMA
??Camera interface supporting up to 4096x4096(supports ITU601/ ITU656 input format)
??AC97 audio codec interface
??2 port USB Host (Version 1.1 Complaint)
??1 port USB Device (Version 1.1 Complaint)
??4-channel general DMA with external request pins
??3-channel UART with IrDA 1.0 (Including 64-byte FIFO)/2-ch SPI
??1-ch multi-master IIC-BUS/1-ch IIS-BUS controller
??SD Host interface version 1.0 & Multi-Media Card Protocol version 2.11 compatible
??4-channel PWM timers and 1-ch internal timer
??130 general purpose I/O ports/24-ch external interrupt source
??8-ch 10-bit ADC and touch screen interface
??Watch dog timer
??RTC with calendar function
??On-chip clock generator with PLL