AT91%20Products%20Overview

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AT91 Products Overview
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AT91 ARM-Based microcontroller

• The Atmel AT91 Series of microcontrollers are
  based upon the powerful ARM7TDMI
  processor.Atmel has taken these cores, added a
  wide range of peripherals and advanced power
  management systems, to give the design engineer
  the best of both worlds a high performance
  peripheral set with very low power consumption.
  It gives the buyer a 32-bit processor at 16-bit
  cost!

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AT91 Architecture

• ARM7TDMI
• 32-bit Advanced System Bus
• Internal Memories
• Memory Interface
• Peripheral Data Controller
• 32-bit Advanced Peripheral Bus
• Peripheral Data Controller
• System Peripherals
• User Peripherals
• Analog Peripherals

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ARM7TDMI Processor Keywords

• 32-bit RISC
• High Performance
• Low Power Consumption
• Small Die Size
• Low Cost
• Fast Data Transfers
• Thumb
• 32-bit Instruction Set
• 16-bit Instruction Set
• Multiply capabilities
• DSP Application Support
• In Chip Emulator
• Debugging Facilities

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AT91 Key Features

• Embedded Flash and high-speed SRAM
• Up to 16Mbit embedded Flash available now !!
• Roadmap for 32M and 64Mbit Embedded Flash
• In-System-Programmable
• 5 to 10x power reduction over a multi-chip
  implementation
• Advanced on-chip power management
• 32kHz slow mode with rapid clock boost to maximum
  operating frequency
• Standby mode with wake-up on interrupt
• Battery backup RTC with less than 1µA current
  consumption
• Large on-chip peripheral set
• ADC/DAC, Serial interfaces, Timers, Ethernet, ...

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A broad range of AT91 applications
Professional Radios
Co-processor Application
Telecom
Data Storage
Medical
Make it Real !
Data Acquisition
Finger Print Recognition
Point-of-Sales Terminal
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AT91 Code efficiency
Relative code density for 40 kbyte application
like code
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Embedded 32-bit RISC processor Shipments
2001
1999
Total RISC Shipments in 2001 was 538 million units
Source Andrew Allison, Inside The New Computer
Industry, January 2002
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AT91 Embedded Peripherals
Vectored Interrupt Controller
Peripheral Data Controller
USART
SPI
Advance Power Management Controller
Program. Timer/Counter including PWM
32-bit RISC ARM core
Glueless External Bus Interface
Multi-Processor Interface
Integrated SRAM
Digital/Analog Converter
Real-Time Clock
Integrated FLASH/ROM
Integrated PLL and Oscillator
Analog/Digital Converter
JTAG Boundary Scan
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AT91 Product Overview
Large Memory Integration
FR40162
FR4042
R40008
M55800A
M40807
M42800A
M63200
M43300
M40800
Increased On-Chip Functionality
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AT91 Integrated SRAM Flash
AT91FR4081
16Mbit Flash2Mbit SRAM
AT91FR40162
AT91F40816
Price
4Mbit Flash2Mbit SRAM
AT91R40807
AT91FR4042
AT91R40008
2Mbit SRAM
AT91M40800
2002
2000
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AT91 Product Selection Guide
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AT91x40 series SRAM Integration

• From 8 to 256 Kbytes of SRAM
• 32-bit SRAM, 0 wait state, single cycle
  accessible
• Reach the maximum performance of the ARM
  Instruction Set
• Download the code from an external flash and run
  it internally (code shadowing)
• Running out of internal SRAM reduces Power
  consumption
• Typical Applications
• High performance algorithms (DSP)
• Audio Decoding (MP3, WMA, )
• MP3, WMA have been ported on AT91 products
• Software peripherals
• Software DMA channels
• High speed Software I2C

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AT91 Flash-based

• AT91FR4042 and AT91FR40162
• R40008 plus 512Kbytes or 2 Mbytes Flash
• BGA 120 package (11x17mm²) ball pith 1mm
• AT91R40008
• AT49BV4096A or AT49BV16x4A (bottom-boot sector)

Data Bus
Address Bus
AT91FR40162
IOs
AT91R40008
AT49BV16x4A
NTRI
NRD/NOE
NWR0/NWE
Flash Chip select
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AT91M55800A Designed for ultra Low Power
Applications

• Analog Functions
• 2 x 4-ch 10-bit ADC, target 20us sampling time
• 2-ch 10-bit DAC, target 3us settling time
• Digital Peripherals
• 2 x 3 Timer Counter channels
• 3 x USARTs, 1 x SPI driving up to 15 serial
  peripherals
• Advanced Power Management Controller
• On-Chip Oscillator 32KHz RTC on Battery Power
• On-Chip Main Oscillator PLL
• On-Chip System Shut-Down Control
• Memory Interface
• Up to 4 external banks of 16Mbytes
• 8kbytes on-chip SRAM
• TQFP176 or BGA176

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AT91M42800A Ideal for Permanent Power Supply
Systems

• Only one 32kHz Oscillator and 2 PLLs
• Run down to 512Hz to meet the lowest power
  consumption
• Keep a fast response to an event thanks to the
  Idle Mode
• Reach the maximum of performance with the PLL
• No accuracy due to the 32kHz crystal poor
  stability (particularly in T)
• 2 SPIs, 2 USARTs, 2 x 3 Timer Counter channels
• 1 System Timer
• Periodic Interval, Watchdog, Real Time
• TQFP 144 or BGA 144