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AT91SAM9G46-CU

AT91 ARM Thumb-based Microcontrollers

Atmel Corporation 

1. Description

The ARM926EJ-S based AT91SAM9G46 features the frequently requested combination of user

interface functionality and high data rate connectivity, including LCD Controller, resistive touch-

screen, camera interface, audio, Ethernet 10/100 and high speed USB and SDIO. With the pro-

cessor running at 400MHz and multiple 100+ Mbps data rate peripherals, the AT91SAM9G46

has the performance and bandwidth to the network or local storage media to provide an ade-

quate user experience.

The AT91SAM9G46 supports the latest generation of DDR2 and NAND Flash memory inter-

faces for program and data storage. An internal 133 MHz multi-layer bus architecture associated

with 39 DMA channels, a dual external bus interface and distributed memory including a 64-

KByte SRAM that can be configured as a tightly coupled memory (TCM) sustains the high band-

width required by the processor and the high speed peripherals.

On-chip hardware accelerators with DMA support enable high-speed data encryption and

authentication of the transferred data or application. Supported standards are up to 256-bit AES,

FIPS PUB 46-3 compliant TDES and FIPS Publication 180-2 compliant SHA1 and SHA256. A

True Random Number Generator is embedded for key generation and exchange protocols.

The I/Os support 1.8V or 3.3V operation, which are independently configurable for the memory

interface and peripheral I/Os. This feature completely eliminates the need for any external level

shifters. In addition it supports 0.8 ball pitch package for low cost PCB manufacturing.

The AT91SAM9G46 power management controller features efficient clock gating and a battery

backup section minimizing power consumption in active and standby modes.

2 AT91SAM9G46

11028BS–ATARM–26-Apr-10

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