AT91R4000866AI ATMEL Corporation, AT91R4000866AI Datasheet

AT91R4000866AI

Manufacturer Part Number

AT91R4000866AI

Description

TQFP100

Manufacturer

ATMEL Corporation

Datasheet

1.AT91R4000866AI.pdf (19 pages)

Specifications of AT91R4000866AI

Date_code

05+

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Features

•

1. Description

The AT91R40008 microcontroller is a member of the Atmel AT91 16/32-bit microcon-

troller family, which is based on the ARM7TDMI processor core. This processor has a

high-performance, 32-bit RISC architecture with a high-density, 16-bit instruction set

and very low power consumption. Furthermore, it features 256K bytes of on-chip

SRAM and a large number of internally banked registers, resulting in very fast excep-

tion handling, and making the device ideal for real-time control applications.

The AT91R40008 microcontroller features a direct connection to off-chip memory,

including Flash, through the fully programmable External Bus Interface (EBI). An 8-

level priority vectored interrupt controller, in conjunction with the Peripheral Data Con-

troller, significantly improves the real-time performance of the device.

The device is manufactured using Atmel’s high-density CMOS technology. By com-

bining the ARM7TDMI processor core with a large, on-chip, high-speed SRAM and a

wide range of peripheral functions on a monolithic chip, the AT91R40008 is a powerful

microcontroller that offers a flexible and high-performance solution to many compute-

intensive embedded control applications.

Incorporates the ARM7TDMI

8-, 16- and 32-bit Read and Write Support

256K Bytes of On-chip SRAM

Fully Programmable External Bus Interface (EBI)

Eight-level Priority, Individually Maskable, Vectored Interrupt Controller

32 Programmable I/O Lines

Three-channel 16-bit Timer/Counter

Two USARTs

Programmable Watchdog Timer

Advanced Power-saving Features

Fully Static Operation:

2.7V to 3.6V I/O Operating Range

1.65V to 1.95V Core Operating Range

-40 C to +85 C Temperature Range

Available in 100-lead LQFP Package (Green)

– High-performance 32-bit RISC Architecture

– High-density 16-bit Instruction Set

– Leader in MIPS/Watt

– Little-endian

– EmbeddedICE

– 32-bit Data Bus

– Single-clock Cycle Access

– Maximum External Address Space of 64M Bytes

– Up to Eight Chip Selects

– Software Programmable 8/16-bit External Data Bus

– Four External Interrupts, including a High-priority, Low-latency Interrupt Request

– Three External Clock Inputs

– Two Multi-purpose I/O Pins per Channel

– Two Dedicated Peripheral Data Controller (PDC) Channels per USART

– CPU and Peripheral Can be Deactivated Individually

– 0 Hz to 75 MHz Internal Frequency Range at VDDCORE = 1.8V, 85 C

™

(In-circuit Emulation)

ARM

Thumb

Processor Core

Note: This is a summary document. A complete document

is available on our Web site at www.atmel.com.

http://www.atmel.com/dyn/resources/prod_documents/doc

1354.pdf

AT91 ARM

Thumb-based

Microcontroller

AT91R40008

Summary

1732FS–ATARM–12-Apr-06

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