AT91SAM7A1

• Aimed at Compute-intensive Embedded Control Applications in Automotive and Industrial Sectors
• ARM7TDMI^® ARM^® Thumb^® Processor Core
High-performance 32-bit RISC
High-density 16-bit Instruction Set (Thumb)
Leader in MIPS/Watt
Embedded ICE (In Circuit Emulation)
• 4 Kbytes Internal SRAM
• Fully-programmable External Bus Interface (EBI) through Advanced Memory Controller (AMC)
Maximum External Address Space of 16 Mbytes, Up to 6 Chip Select Lines
• 8-level Priority Generic Interrupt Controller (GIC)
Two External Interrupts including One Fast Interrupt Line
• Eleven-channel Peripheral Data Controller (PDC)
• 49 Programmable I/O Lines
• One 3-channel 16-bit General Purpose Timer (GPT)
Three Configurable Modes: Counter, PWM, Capture
Three Multi-purpose I/O Pins Per Channel
• Four 16-bit Simple Timers (ST)
• Four-channel 16-bit Pulse Width Modulation (PWM)
• Two 16-bit Capture Modules (CAPT)
• One CAN Controller 2.0A and 2.0B Full CAN (16 Buffers)
• Three USARTs
Support for J1587 and LIN Protocols
• Master SPI Interface
8-bit to 16-bit Programmable Data Length
Four External Serial Peripheral Chip Select Lines
• One 8-Channel 10-bit Analog-to-digital Converter (ADC)
• Programmable Watch Timer (WT)
• Programmable Watchdog (WD)
• Power Management Controller (PMC)
32 kHz, Main Oscillator, PLL
• Fully Static Operation: 0 Hz 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 TQFP Package

AT91SAM7A1 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 AT91SAM7A1 has a direct connection to off-chip memory, including Flash, through the fully-programmable External Bus Interface.

An eight-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 microcontroller core with an on-chip RAM and a wide range of peripheral functions, including USART, SPI, CAN Controllers, Timer Counter and Analog-to-digital Converter, on a monolithic chip, the AT91SAM7A1 is a powerful device that provides a flexible, cost-effective solution to many computeintensive embed-ded control applications in the automotive and industrial world.