NOTE: This is a summary document.
The complete document is available on
the Atmel website at www.atmel.com.
Features
• ARM7TDMI
®
ARM
®
Thumb
®
Processor Core
– High-performance 32-bit RISC
– High-density 16-bit Thumb Instruction Set
– Leader in MIPS/Watt
– Embedded ICE (In Circuit Emulation)
• 4 Kbytes Internal RAM
• Clock Manager (CM) with Programmable PLL
– PLL Multiplier from x2 to x20
– 32.768 kHz Oscillator for Low-power Operation
– Master Clock Divider/multiplier
• Fully Programmable External Bus Interface (EBI) through Advanced Memory Controller
(AMC)
– Maximum External Address Space of 16 Mbytes, Up to Six Chip Select Lines
• 8-level Priority, Vectored Interrupt Controller
– Individually Maskable, Two External Interrupts including One Fast Interrupt Line
• 11-channel Peripheral Data Controller (PDC)
• 49 Programmable I/O Lines
• One 3-channel 16-bit General Purpose Timers (GPT)
– Three Configurable Modes: Counter, PWM, Capture
– Three Multi-purpose I/O Pins Per Channel
• Four 16-bit Simple Timers (ST)
• 4-channel 16-bit Pulse Width Modulation (PWM)
• Two 16-bit Capture Modules (CAPT)
• CAN Controller 2.0A and 2.0B Full CAN (16 Buffers)
• Three USARTs
– Six Peripheral Data Controller (PDC) Channels
– Support for Up to 9-bit Data Lengths
– Support for LIN (Software) Protocol
• Master SPI Interface
– Two Peripheral Data Controller (PDC) Channels
– 8- to 16-bit Programmable Data Length
– Four External Chip Select Lines
• One 8-channel 10-bit Analog-to-digital Converter (ADC)
– One Peripheral Data Controller (PDC) Channel
• Programmable Watch Timer (WT)
• Programmable Watchdog (WD)
• Power Management Controller (PMC)
– CPU and Peripherals Can Be Deactivated Individually
• Fully Static Operation Up to 40 MHz
– 3.0V to 3.6V Core, Memory and Analog Voltage Range
– 3.0 V to 5.5V Compliant I/Os
– -40° to +85°C Operating Temperature Range
• Available in a 144-pin LQFP
AT91 ARM
Thumb-based
Microcontrollers
AT91SAM7A1
Summary
6048C–ATARM–29-Jun-06
