Datasheet

6062LS–ATARM–23-Mar-09

AT91SAM9261

• Advanced Interrupt Controller (AIC)

– Individually Maskable, Eight-level Priority, Vectored Interrupt Sources

– Three External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt Protected

• Debug Unit (DBGU)

– 2-wire USART and support for Debug Communication Channel, Programmable ICE Access Prevention

– Mode for General Purpose Two-wire UART Serial Communication

• Periodic Interval Timer (PIT)

– 20-bit Interval Timer plus 12-bit Interval Counter

• Watchdog Timer (WDT)

– Key Protected, Programmable Only Once, Windowed 12-bit Counter, Running at Slow Clock

• Real-Time Timer (RTT)

– 32-bit Free-running Backup Counter Running at Slow Clock

• Three 32-bit Parallel Input/Output Controllers (PIO) PIOA, PIOB and PIOC

– 96 Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os

– Input Change Interrupt Capability on Each I/O Line

– Individually Programmable Open-drain, Pull-up Resistor and Synchronous Output

• Nineteen Peripheral DMA (PDC) Channels

• Multimedia Card Interface (MCI)

– SDCard and MultiMediaCard

™

Compliant

– Automatic Protocol Control and Fast Automatic Data Transfers with PDC, MMC and SDCard Compliant

• Three Synchronous Serial Controllers (SSC)

– Independent Clock and Frame Sync Signals for Each Receiver and Transmitter

– I²S Analog Interface Support, Time Division Multiplex Support

– High-speed Continuous Data Stream Capabilities with 32-bit Data Transfer

• Three Universal Synchronous/Asynchronous Receiver Transmitters (USART)

– Individual Baud Rate Generator, IrDA

Infrared Modulation/Demodulation

– Support for ISO7816 T0/T1 Smart Card, Hardware and Software Handshaking, RS485 Support

• Two Master/Slave Serial Peripheral Interface (SPI)

– 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects

• One Three-channel 16-bit Timer/Counters (TC)

– Three External Clock Inputs, Two multi-purpose I/O Pins per Channel

– Double PWM Generation, Capture/Waveform Mode, Up/Down Capability

• Two-wire Interface (TWI)

– Master Mode Support, All Two-wire Atmel EEPROMs Supported

• IEEE

1149.1 JTAG Boundary Scan on All Digital Pins

• Required Power Supplies:

– 1.08V to 1.32V for VDDCORE and VDDBU

– 3.0V to 3.6V for VDDOSC and for VDDPLL

– 2.7V to 3.6V for VDDIOP (Peripheral I/Os)

– 1.65V to 1.95V and 3.0V to 3.6V for VDDIOM (Memory I/Os)

• Available in a 217-ball LFBGA RoHS-compliant Package