| AT91R40008 |
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| The AT91R40008 features 256K bytes of on-chip SRAM, an External Bus Interface, a 3-channel Timer/Counter, 2 USARTs, a Watchdog Timer and advanced power-saving features.The AT91X408XX Series does not feature Boundary-scan cells on digital pins.
The JTAG/ICE port is only used as debug port. |
| Status |
Production |
| SRAM (Bytes) |
256K |
| External Bus Interface |
1 |
| Peripheral DMA Channels |
4 |
| Max. Clock Speed (MHz) |
75 |
| I/O Pins |
32 |
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LQFP 100
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More |
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|  Check Distributor Inventory |
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ARM7TDMI Technical Reference Manual
(284 pages, updated 04/01)
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AT91R40008 Summary
(19 pages, revision FS, updated 04/06)
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AT91R40008 Electrical Characteristics
(20 pages, revision E, updated 12/05)
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AT91X40 Series: AT91M40800, AT91R40807, AT91M40807, AT91R40008
(154 pages, updated 08/02)
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AT91 Assembler Code Startup Sequence for C Code Applications Software
(16 pages, revision A, updated 6/02)
Provides a C startup sequence written in assembler code and based on the C startup sequence for the AT91 Evaluation Board working with the ARM ADS V1.1 Development Tools.
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AT91-AN01: Using the Two-wire interface (TWI) in Master Mode on AT91SAM Microcontrollers
(32 pages, revision B, updated 08/07)
This application note is an aid for developers in the
design of a system using the Two-wire Interface (TWI) of Atmel's AT91SAM family of microcontroller products with Atmel's Two-wire Interface slave devices and I2C-Bus compatible slave devices.
It describes the connection with a digital temperature sensor (LM75), a Real Time Clock (DS1337), a Graphic LCD Module(PCF8558) and a 1Mbit Two-wire Serial EEPROM (AT24C1024).
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Connecting an I2S-Compatible Audio DAC to the AT91x40 Series Microcontroller
(13 pages, revision A, updated 5/02)
Provides the procedure to construct the interface between a stero audio digital-to-analog converter and an AT91x40 Series Microcontroller.
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Software DMA Implementation
(8 pages, revision A, updated 10/98)
Describes two different ways to implement a DMA function in software using the ARM Fast Interrupt (FIQ) as the external event.
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AT91x40 Series Board Design and Troubleshooting Guide
(10 pages, revision A, updated 03/05)
This application note provides directions to hardware designers when designing a board based on one of the AT91x40 microcontroller series and the AT91FR40x Flash-based products. The focus is on the verifications to be carried out at the board schematics level, thus assuring the highest probability of a right-first-time system.
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Using an AT91EB40A Evaluation Board to Control an AT91 ARM7TDMI Processor via the JTAG-ICE Interface
(22 pages, revision A, updated 01/03)
Describes how to use the AT91EB40A Evaluation Board based on the AT91R40008 microcontroller to control an AT91 ARM7TDMIŽ processor via the standard ARM JTAG-ICE interface.
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 Other Related Application Notes |
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Evaluation Kit:
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AT91EB40A
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Software Files:
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AT91R40008_ibis_1.0.zip
I/O Buffer Information Specification (IBIS) models for the AT91R40008, AT91FR40162 and AT91FR4042.
BSDL software files not available. The AT91X408XX Series does not feature Boundary-scan cells on digital pins. The JTAG/ICE port is only used as debug port. |
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ATMEL_PLL_LFT_Filter_CALCULATOR_AT91_2v9.zip
Excel spreadsheet allowing calculation of the best R-C-C component values on the PLL Loop Back Filter.
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AT91EB40A |
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AT91SAM Product Guide
(Brochure, 2 pages, revision F, updated 5/09)
Product selection guide to Atmel's AT91SAM microcontrollers that give immediate access to market-leading ARM processors. |
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Atmel's ARM-based Microcontroller - Low Power for Portable Systems
(White Paper, 7 pages, revision A, updated 4/01)
In the hand-held systems market, the lowest power consumption is mandatory. Atmel has responded to this challenge with the numerous advanced power-saving features in its AT91 range of ARM-based Microcontrollers. |
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Atmel's ARM-based Microcontroller Excels in Real-Time
(White Paper, 6 pages, revision A, updated 3/01)
Applications such as mobile communicators, PDAs, solid-state music players and internet appliances demand the best possible real-time performance. Atmel's AT91 series of ARM-based microcontrollers incorporates a number of advanced features that enhance the real-time performance of the ARM7TDMI core, making it ideal for applications of this nature. |
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