Описание
The AT91M55800A is a member of the Microchip AT91 16/32-bit microcontroller family,which is based on the ARM7TDMI processor core. This processor has a high-performance32-bit RISC architecture with a high-density 16-bit instruction set and very lowpower consumption. In addition, a large number of internally banked registers result invery fast exception handling, making the device ideal for real-time controlapplications. The fully programmable External Bus Interface provides a direct connection to off-chip memory in as fast as one clockcycle for a read or write operation. An eight-level priority vectored interrupt controller in conjunction with the peripheral datacontroller significantly improve the real-time performance of the device.The device is manufactured using Microchip’s high-density CMOS technology. By combining the ARM7TDMI processor corewith an on-chip SRAM, a wide range of peripheral functions, analog interfaces and low-power oscillators on a monolithicchip, the Microchip AT91M55800A is a powerful microcontroller that provides a highly-flexible and cost-effective solution tomany ultra low-power applications.
- Utilizes the ARM7TDMI® ARM® Thumb® Processor Core
- High-performance 32-bit RISC Architecture
- High-density 16-bit Instruction Set
- Leader in MIPS/Watt
- EmbeddedICE™ (In-Circuit Emulation)
- 8K Bytes Internal SRAM
- Fully-programmable External Bus Interface (EBI)
- Maximum External Address Space of 128M Bytes
- Eight Chip Selects
- Software Programmable 8/16-bit External Databus
- 8-level Priority, Individually Maskable, Vectored Interrupt Controller
- Seven External Interrupts, Including a High-priority, Low-latency Interrupt Request
- Fifty-eight Programmable I/O Lines
- 6-channel 16-bit Timer/Counter
- Six External Clock Inputs and Two Multi-purpose I/O Pins per Channel
- Three USARTs
- Master/Slave SPI Interface
- 8-bit to 16-bit Programmable Data Length
- Four External Slave Chip Selects
- Programmable Watchdog Timer
- 8-channel 10-bit ADC
- 2-channel 10-bit DAC
- Clock Generator with On-chip Main Oscillator and PLL for Multiplication
- 3 to 20 MHz Frequency Range Main Oscillator
- Real-time Clock with On-chip 32 kHz Oscillator
- Battery Backup Operation and External Alarm
- 8-channel Peripheral Data Controller for USARTs and SPIs
- Advanced Power Management Controller (APMC)
- Normal, Wait, Slow, Standby and Power-down modes
- IEEE® 1149.1 JTAG Boundary-scan on all Digital Pins
- Fully Static Operation: 0 Hz to 33 MHz
- 2.7V to 3.6V Core Operating Range
- 2.7V to 5.5V I/O Operating Range
- 2.7V to 3.6V Analog Operating Range
- 1.8V to 3.6V Backup Battery Operating Range
- 2.7V to 3.6V Oscillator and PLL Operating Range
- -40°C to +85°C Temperature Range
- Available in a 176-lead LQFP (Green) and a 176-ball BGAPackage (RoHS-compliant)
