AT91SAM7L128 Datasheet, PDF (1/48 Pages) ATMEL Corporation – AT91 ARM Thumb-based Microcontroller

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
– 128 Kbytes (AT91SAM7L128), Organized in 512 Pages of 256 Bytes Single Plane
– 64 Kbytes (AT91SAM7L64), Organized In 256 Pages of 256 Bytes Single Plane
– Single Cycle Access at Up to 15 MHz in Worst Case Conditions
– 128-bit Read Access
– Page Programming Time: 4.6 ms, Including Page Auto Erase, Full Erase Time: 10 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
– 6 Kbytes
• 2 Kbytes Directly on Main Supply That Can Be Used as Backup SRAM
• 4 Kbytes in the Core
• Memory Controller (MC)
– Enhanced Embedded Flash Controller, Abort Status and Misalignment Detection
• Enhanced Embedded Flash Controller (EEFC)
– Interface of the Flash Block with the 32-bit Internal Bus
– Increases Performance in ARM and Thumb Mode with 128-bit Wide Memory
Interface
• Reset Controller (RSTC)
– Based on Zero-power Power-on Reset and Fully Programmble Brownout Detector
– Provides External Reset Signal Shaping and Reset Source Status
• Clock Generator (CKGR)
– Low-power 32 kHz RC Oscillator, 32 kHz On-chip Oscillator, 2 MHz Fast RC
Oscillator and one PLL
• Supply Controller (SUPC)
– Minimizes Device Power Consumption
– Manages the Different Supplies On Chip
– Supports Multiple Wake-up Sources
• Power Management Controller (PMC)
– Software Power Optimization Capabilities, Including Active and Four Low Power
Modes:
• Idle Mode: No Processor Clock
• Wait Mode: No Processor Clock, Voltage Regulator Output at Minimum
• Backup Mode: Voltage Regulator and Processor Switched Off
• Off (Power Down) Mode: Entire Chip Shut Down Except for Force Wake Up Pin
(FWUP) that Re-activates the Device. 100 nA Current Consumption.
• In Active Mode, Dynamic Power Consumption <30 mA at 36 MHz
– Three Programmable External Clock Signals
– Handles Fast Start Up
AT91 ARM
Thumb-based
Microcontroller
AT91SAM7L128
AT91SAM7L64
Summary
Preliminary
NOTE: This is a summary document.
The complete document is available on
the Atmel website at www.atmel.com..
6257AS–ATARM–28-Feb-08