at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 3

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

1. Description
6384B–ATARM–15-Dec-08
The AT91SAM9G20 is based on the integration of an ARM926EJ-S processor with fast ROM
and RAM memories and a wide range of peripherals.
The AT91SAM9G20 embeds an Ethernet MAC, one USB Device Port, and a USB Host control-
ler. It also integrates several standard peripherals, such as the USART, SPI, TWI, Timer
Counters, Synchronous Serial Controller, ADC and MultiMedia Card Interface.
The AT91SAM9G20 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 AT91SAM9G20 is an enhancement of the AT91SAM9260 with the same peripheral fea-
tures. It is pin-to-pin compatible with the exception of power supply pins. Speed is increased to
reach 400 MHz on the ARM core and 133 MHz on the system bus and EBI.
AT91SAM9G20 Preliminary
3