Overview of Technical Characteristics
3
3. Overview of Technical Characteristics
3.1. CPU
Atmel AT91SAM9G45 Embedded Processor featuring an ARM926EJ-S
™
ARM
®
Thumb
®
Core
• CPU Clock 400 MHz
• 32KB Instruction Cache
• 32KB Data Cache
• Memory Management Unit (MMU)
• 3.3V Supply Voltage, 1.8V Memory Bus Voltage, 1.0V Core Voltage
3.2. Memory
• 128 MB NAND flash memory (optional up to 1GB)
• 128 MB LPDDR-SDRAM (optional up to 512 MB)
• 64 KB SRAM
• 128 Bytes EEPROM
• Onboard Micro-SD Card Slot
3.3. Interfaces and external signals
• 2x 100-pin fine-pitch low-profile Connectors (Hirose FX8)
• Ethernet 10/100 Mbit MAC
• USB 2.0 High Speed Host
• USB 2.0 Full Speed OTG (USB-On-the-Go)
• USB 2.0 High Speed Device
• Four USARTs
• One UART
• One Synchronous Serial Controller (SSC, I
2
S)
• One Serial Peripheral Interface (SPI)
• Two Two Wire Interface (TWI, I
2
C)
• One High Speed MultiMedia Card Interface