SAM7X512 查看數據表（PDF） - Atmel Corporation

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SAM7X512

AT91SAM ARM-based Flash MCU

Atmel Corporation 

Features

• Incorporates the ARM7TDMI® ARM® Thumb® Processor

– High-performance 32-bit RISC Architecture

– High-density 16-bit Instruction Set

• Leader in MIPS/Watt

– EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support

• Internal High-speed Flash

– 512 Kbytes (SAM7X512) Organized in Two Banks of 1024 Pages of

256 Bytes (Dual Plane)

– 256 Kbytes (SAM7X256) Organized in 1024 Pages of 256 Bytes (Single Plane)

– 128 Kbytes (SAM7X128) Organized in 512 Pages of 256 Bytes (Single Plane)

• Single Cycle Access at Up to 30 MHz in Worst Case Conditions

• Prefetch Buffer Optimizing Thumb Instruction Execution at Maximum Speed

• Page Programming Time: 6 ms, Including Page Auto-erase,

Full Erase Time: 15 ms

• 10,000 Write Cycles, 10-year Data Retention Capability,

Sector Lock Capabilities, Flash Security Bit

• Fast Flash Programming Interface for High Volume Production

• Internal High-speed SRAM, Single-cycle Access at Maximum Speed

– 128 Kbytes (SAM7X512)

– 64 Kbytes (SAM7X256)

– 32 Kbytes (SAM7X128)

• Memory Controller (MC)

– Embedded Flash Controller, Abort Status and Misalignment Detection

• Reset Controller (RSTC)

– Based on Power-on Reset Cells and Low-power Factory-calibrated Brownout

Detector

– Provides External Reset Signal Shaping and Reset Source Status

• Clock Generator (CKGR)

– Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and one PLL

• Power Management Controller (PMC)

– Power Optimization Capabilities, Including Slow Clock Mode (Down to 500 Hz) and

Idle Mode

– Four Programmable External Clock Signals

• Advanced Interrupt Controller (AIC)

– Individually Maskable, Eight-level Priority, Vectored Interrupt Sources

– Two External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt

Protected

• Debug Unit (DBGU)

– 2-wire UART and Support for Debug Communication Channel interrupt,

Programmable ICE Access Prevention

– Mode for General Purpose 2-wire UART Serial Communication

• Periodic Interval Timer (PIT)

– 20-bit Programmable Counter plus 12-bit Interval Counter

• Windowed Watchdog (WDT)

– 12-bit key-protected Programmable Counter

– Provides Reset or Interrupt Signals to the System

– Counter May Be Stopped While the Processor is in Debug State or in Idle Mode

AT91SAM

ARM-based

Flash MCU

SAM7X512

SAM7X256

SAM7X128

Summary

NOTE: This is a summary document.

The complete document is available on

the Atmel website at www.atmel.com.

6120GS–ATARM–07-Apr-11

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