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AT91SAM7A2-AI Datasheet

  • AT91SAM7A2-AI

  • ARM Thumb - based Microcontrollers

  • 15頁(yè)

  • ATMEL   ATMEL

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Features
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ARM7TDMI
廬
ARM
廬
Thumb
廬
Processor Core
鈥?High Performance 32-bit RISC
鈥?High-density 16-bit Instruction set (Thumb)
鈥?Leader in MIPS/Watt
鈥?Embedded ICE (In Circuit Emulation)
16 Kbytes Internal SRAM
Fully Programmable External Bus Interface (EBI)
鈥?Maximum External Address Space of 6 Mbytes, Up to Four Chip Select Lines
8-level Priority, Vectored Interrupt Controller
鈥?Three External Interrupts Including One Fast Interrupt Line
Ten Channel Peripheral Data Controller (PDC)
57 Programmable I/O Lines
Four 16-bit General Purpose Timers (GPT)
鈥?Three Configurable Modes: Counter, PWM, Capture
鈥?Four External Clock Inputs, Three Multi-purpose I/O Pins per Timer
Four 16-bit Simple Timers (ST)
Four Channel 16-bit Pulse Width Modulation (PWM)
Four CAN Controllers 2.0A and 2.0B Full CAN
鈥?One with 32 Buffers, Three with 16 Buffers
Two USARTs
鈥?Support for J1587 and LIN Protocols
One Master/Slave SPI Interface
鈥?8 to 16-bit Programmable Data Length
鈥?Four External Serial Peripheral Chip Selects
Two 8-channel 10-bit Analog to Digital Converters (ADC)
Two 16-bit Capture Modules (CAPT)
Programmable Watch Timer (WT)
Programmable Watchdog (WD)
Power Management Controller (PMC)
鈥?32 kHz Oscillator, Main Oscillator and PLL
IEEE 1149.1 JTAG Boundary-scan on all Digital Pins
Fully Static Operation: 0 Hz to 30 MHz at VDDCORE=3.3V, 85擄C
3.0V to 5.5V Operating Voltage Range
3.0V to 3.6V Core, Memory and Analog Voltage Range
-40擄 to +85擄C Operating Temperature Range
Available in a 176-lead LQFP Package
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AT91 ARM
廬
Thumb
廬
- based
Microcontrollers
AT91SAM7A2
Summary
Description
The AT91SAM7A2 is based on the ARM7TDMI embedded processor. This processor
has a high-performance 32-bit RISC architecture with a high-density 16-bit instruction
set and very low power consumption.
In addition, a large number of internally banked registers result in very fast exception
handling, making the device ideal for real-time control applications.
The AT91SAM7A2 has a direct connection to off-chip memory, including Flash,
through the fully programmable External Bus Interface.
An 8-level priority vectored Interrupt Controller in conjunction with the Peripheral Data
Controller significantly improves the real time performance of the device. The device
is manufactured using high-density CMOS technology.
By combining the ARM7TDMI processor with an on-chip SRAM, and a wide range of
peripheral functions, including USART, SPI, CAN Controllers, Timer Counter and Ana-
log-to-Digital Converters, on a monolithic chip, the AT91SAM7A2 is a powerful device
that provides a flexible, cost-effective solution to many compute-intensive embedded
control applications in the automotive and industrial world.
6021AS鈥揂TARM鈥?3/04
Note: This is a summary document. A complete document
is in preparation.

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