AT91SAM7A1-AU

AT91SAM7A1-AU Datasheet


AT91 ARM Thumb-based Microcontrollers AT91SAM7A1 Summary

Part Datasheet
AT91SAM7A1-AU AT91SAM7A1-AU AT91SAM7A1-AU (pdf)
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• 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 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 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

NOTE This is a summary document. The complete document is available on the Atmel website at

The AT91SAM7A1 is a member of the Atmel Smart ARM Microcontrollers product family, 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 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 RAM and a wide range of peripheral functions on a monolithic chip, the AT91SAM7A1 is a powerful device that provides a flexible, cost-effective solution to many compute-intensive embedded control applications in the industrial world.
2 AT91SAM7A1

Block Diagram

Figure AT91SAM7A1 Block Diagram
5V-compliant

AT91SAM7A1
3V3 Supply

VDDCORE GND IRQ0 FIQ SCANEN TDI TDO TCK TMS TEST NWAIT
3V3 Supply
5V-compliant
3V3 Supply
5V-compliant

VDDIO GND

SPCK/MPIO MISO/MPIO MOSI/MPIO NPCS0/MPIO NPCS1/MPIO NPCS2/MPIO NPCS3/MPIO

RXD0/MPIO TXD0/MPIO SCK0/MPIO

RXD1/MPIO TXD1/MPIO SCK1/MPIO

RXD2/MPIO TXD2/MPIO SCK2/MPIO

T0TIOA0/MPIO T0TIOB0/MPIO T0TCLK0/MPIO

T0TIOA1/MPIO T0TIOB1/MPIO T0TCLK1/MPIO T0TIOA2/MPIO T0TIOB2/MPIO T0TCLK2/MPIO

I/O Power Core Power

Supply

Supply

SPI PIO
2 PDC Channels

Generic Interrupt Controller
11 Channel PDC

Controller

Select

Arbiter ASB Controller

JTAG

Advanced Memory Controller
Ordering Information
Table AT91SAM7A1 Ordering Information
Ordering Code

Package

AT91SAM7A1-AU

LQFP144

AT91SAM7A1

Package Type Green

Temperature Operating Range Industrial -40° C to +85° C
6048CS

Date 22-Jul-04 03-Mar-05
29-JUN-06

Comments

First issue.

Removed Preliminary status. Changed package from TQFP to LQFP, type Green.

Removed references to Automotive applications. “Features” on page 1, “Description” on page 2 replaced with features and description from full datasheet.

Change Request Ref.
2740
16 AT91SAM7A1

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More datasheets: H11A5100 | H11A1300 | 4N25 | H11A1 | H11A2 | H11A5 | 4N27 | B66291P0000X197 | DFR0151 | 3369


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Datasheet ID: AT91SAM7A1-AU 519130