AT91M42800A_06 Datasheet, PDF (1/224 Pages) ATMEL Corporation – AT91 ARM Thumb Microcontrollers

Features
• Utilizes 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)
• 8K Bytes Internal SRAM
• Fully Programmable External Bus Interface (EBI)
– Maximum External Address Space of 64M Bytes
– Up to 8 Chip Selects
– Software Programmable 8/16-bit External Data Bus
• 8-channel Peripheral Data Controller
• 8-level Priority, Individually Maskable, Vectored Interrupt Controller
– 5 External Interrupts, Including a High-priority, Low-latency Interrupt Request
• 54 Programmable I/O Lines
• 6-channel 16-bit Timer/Counter
– 6 External Clock Inputs, 2 Multi-purpose I/O Pins per Channel
• 2 USARTs
– 2 Dedicated Peripheral Data Controller (PDC) Channels per USART
– Support for up to 9-bit Data Transfers
• 2 Master/Slave SPI Interfaces
– 2 Dedicated Peripheral Data Controller (PDC) Channels per SPI
– 8- to 16-bit Programmable Data Length
– 4 External Slave Chip Selects per SPI
• 3 System Timers
– Period Interval Timer (PIT); Real-time Timer (RTT); Watchdog Timer (WDT)
• Power Management Controller (PMC)
– CPU and Peripherals Can be Deactivated Individually
• Clock Generator with 32.768 kHz Low-power Oscillator and PLL
– Support for 38.4 kHz Crystals
– Software Programmable System Clock (up to 33 MHz)
• IEEE^® 1149.1 JTAG Boundary Scan on All Active Pins
• Fully Static Operation: 0 Hz to 33 MHz, Internal Frequency Range at V_DDCORE = 3.0V,
85° C
• 2.7V to 3.6V Core and PLL Operating Voltage Range; 2.7V to 5.5V I/O Operating Voltage
Range
• -40° C to +85° C Temperature Range
• Available in a 144-lead LQFP Package (Green) and a 144-ball BGA Package (RoHS
compliant)
AT91 ARM
Thumb
Microcontrollers
AT91M42800A
Rev. 1779D–ATARM–14-Apr-06