AT91FR4081

Features:

• Incorporates the ARM7TDMI™ ARM^® Thumb^® Processor Core
High-performance 32-bit RISC Architecture
High-density 16-bit Instruction Set
Leader in MIPS/Watt
Embedded ICE (In-circuit Emulation)
• 136K Bytes of On-chip SRAM
32-bit Data Bus, Single-clock Cycle Access
• 512K Words 16-bit Flash Memory (8 Mbits)
Single Voltage Read/Write, 110 ns Access Time
Sector Erase Architecture
Fast Word Program Time of 20 µs; Fast Sector Erase Time of 200 ms
Dual-plane Organization Allows Concurrent Read and Program/Erase
Erase Suspend Capability
Low-power Operation: 25 mA Active, 10 µA Standby
Data Polling, Toggle Bit and Ready/Busy End of Program Cycle Detection
Reset Input for Device Initialization
Sector Program Unlock Command
Factory-programmed AT91 Flash Uploader Software
• Fully Programmable External Bus Interface (EBI)
Up to 8 Chip Selects, Maximum External Address Space of 64M Bytes
Software Programmable 8/16-bit External Data Bus
• 8-level Priority, Individually Maskable, Vectored Interrupt Controller
4 External Interrupts, Including a High-priority Low-latency Interrupt Request
• 32 Programmable I/O Lines
• 3-channel 16-bit Timer/Counter
3 External Clock Inputs
2 Multi-purpose I/O Pins per Channel
• 2 USARTs
2 Dedicated Peripheral Data Controller (PDC) Channels per USART
• Programmable Watchdog Timer
• Advanced Power-saving Features
CPU and Peripherals Can be De-activated Individually
• Fully Static Operation:
0 Hz to 33 MHz Internal Frequency Range at 3.0V, 85°C
• 2.7V to 3.6V Operating Range
• -40°C to 85°C Temperature Range
• Available in a 120-ball BGA Package



Description

The AT91FR4081 is a member of the Atmel AT91 16/32-bit Microcontroller family, which is based on the ARM7TDMI processor core. The processor has a high-performance 32-bit RISC architecture with a high-density 16-bit instru-ction 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 eight-level priority-vectored interrupt controller, together with the Peripheral Data Controller, significantly enhance real-time device performance.

By combining the microcontroller, featuring more than 1 Mbit of on-chip SRAM and a wide range of peripheral functions, with 8 Mbits of Flash memory in a single compact 120-ball BGA package, the Atmel AT91FR4081 pro-vides a powerful, flexible and costeffective solution to many compute-intensive embedded control applications and offers significant board size and system cost reductions.

The Flash memory may be programmed via the JTAG/ICE interface or the factory-programmed Flash Uploader using a single device supply, making the AT91FR4081 ideal for in-system programmable applications.