AT91SAM9G20B-CU

The AT91SAM9G20B-CU is a SMART Embedded Microprocessor unit based on the integration of an ARM926EJ-S processor with fast ROM and RAM memories and a wide range of peripherals. The SAM9G20 embeds an Ethernet MAC, one USB device port and a dual port USB host controller with on-chip USB transceivers. It also integrates several standard peripherals, such as the USART, SPI, TWI, Timer counters, Synchronous Serial Controller, ADC and MultiMedia card Interface. The SAM9G20 is architectured on a 6-layer matrix, allowing a maximum internal bandwidth of six 32-bit buses. It also features an External bus interface capable of interfacing with a wide range of memory devices. The SAM9G20 is an enhancement of the SAM9260 with the same peripheral features. It is pin-to-pin compatible with the exception of power supply pins. Speed is increased to reach 400MHz on the ARM core and 133MHz on the system bus and EBI.

• Incorporates the ARM926EJ-S ARM Thumb processor
• One 64kB Internal ROM, single-cycle access at maximum matrix speed
• Two 16kB internal SRAM, single-cycle access at maximum matrix speed
• External bus interface (EBI)
• USB 2.0 full speed (12Mbps) device port
• USB 2.0 full speed (12Mbps) host double port
• Ethernet MAC 10/100 Base T
• Image sensor interface
• Bus matrix
• Reset controller (RSTC)
• Clock generator (CKGR)
• Power management controller (PMC)
• Advanced interrupt controller (AIC)
• Debug unit (DBGU)
• Periodic interval timer (PIT)
• Watchdog timer
• Real-time timer (RTT)
• One 4-channel 10-bit Analog-to-digital converter
• Three 32-bit Parallel I/O controllers (PIOA, PIOB, PIOC)
• Peripheral DMA controller channels (PDC)
• One synchronous serial controller (SSC)
• IEEE® 1149.1 JTAG boundary scan on all digital pins
• Two three-channel 16-bit timers/counters (TC)
• Four universal synchronous/asynchronous receiver/transmitters (USARTs)
• Fully-featured system controller

Applications

Automation & Process Control