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AT91M40008 fiches techniques PDF

ATMEL Corporation - Incorporates the ARM7TDMI ARM Thumb Processor Core

Numéro de référence AT91M40008
Description Incorporates the ARM7TDMI ARM Thumb Processor Core
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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AT91M40008 fiche technique
Features
Incorporates the ARM7TDMIARM® Thumb® Processor Core
– High-performance 32-bit RISC Architecture
– High-density 16-bit Instruction Set
– Leader in MIPS/Watt
– Little-endian
– Embedded ICE (In-circuit Emulation)
8-, 16- and 32-bit Read and Write Support
256K Bytes of On-chip SRAM
– 32-bit Data Bus
– Single-clock Cycle Access
Fully Programmable External Bus Interface (EBI)
– Maximum External Address Space of 64M Bytes
– Up to Eight Chip Selects
– Software Programmable 8/16-bit External Data Bus
Eight-level Priority, Individually Maskable, Vectored Interrupt Controller
– Four External Interrupts, including a High-priority, Low-latency Interrupt Request
32 Programmable I/O Lines
Three-channel 16-bit Timer/Counter
– Three External Clock Inputs
– Two Multi-purpose I/O Pins per Channel
Two USARTs
– Two Dedicated Peripheral Data Controller (PDC) Channels per USART
Programmable Watchdog Timer
Advanced Power-saving Features
– CPU and Peripheral Can be Deactivated Individually
Fully Static Operation:
– 0 Hz to 70 MHz Internal Frequency Range at VDDCORE = 1.65V, 85°C
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 TQFP Package
AT91 ARM®
Thumb®
Microcontrollers
AT91R40008
Summary
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 combin-
ing 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.
Rev. 1732CS–ATARM–02/02
Note: This is a summary document. A complete document is 1
available on our web site at www.atmel.com.

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