ATMEGA649P-AU

ATMEL  ATMEGA649P-AU  芯片, 微控制器, 8位, AVR, 64K闪存, 64TQFP

The is a high-performance picoPower 8-bit AVR RISC-based Microcontroller combines 64kB ISP flash memory with read-while-write capabilities, 2kB EEPROM, 4kB SRAM, 54/69 general purpose I/O lines, 32 general purpose working registers, a JTAG interface for boundary-scan and on-chip debugging/programming, a complete on-chip LCD controller with internal contrast control, three flexible timers/counters with compare modes, internal and external interrupts, serial programmable USART, an universal serial interface USI with start condition detector, an 8-channel 10-bit A/D converter, programmable watchdog timer with internal oscillator, SPI serial port and five software selectable power saving modes. The device operates between 1.8 to 5.5V. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1MIPS per MHz, balancing power consumption and processing speed.

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Advanced RISC architecture

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Power-on reset and programmable brown-out detection

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Internal calibrated RC oscillator

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External and internal interrupt sources

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Five sleep modes - Idle, ADC noise reduction, power-save, power-down and standby

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130 Powerful instructions-most single clock cycle execution

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32 x 8 General purpose working registers

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Fully static operation

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Up to 16MIPS throughput at 16MHz

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On-chip 2-cycle multiplier

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QTouch® library support

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JTAG IEEE std. 1149.1 compliant interface

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Programmable watchdog timer with separate on-chip oscillator

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On-chip analog comparator

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Interrupt and wake-up on pin change

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Two 8-bit timers/counters with separate prescalers and compare modes

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One 16-bit timer/counter with separate prescaler, compare mode and capture mode

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Real-time counter with separate oscillator

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Four PWM channels

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Programmable serial USART