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ATMEGA1280V-8AU Datasheet(PDF) 5 Page - ATMEL Corporation |
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ATMEGA1280V-8AU Datasheet(HTML) 5 Page - ATMEL Corporation |
5 / 37 page 5 2549LS–AVR–08/07 ATmega640/1280/1281/2560/2561 2. Overview The ATmega640/1280/1281/2560/2561 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega640/1280/1281/2560/2561 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. 2.1 Block Diagram Figure 2-1. Block Diagram CPU GND VCC RESET Power Supervision POR / BOD & RESET Watchdog Oscillator Watchdog Timer Oscillator Circuits / Clock Generation XTAL1 XTAL2 PC7..0 PORT C (8) PA7..0 PORT A (8) PORT D (8) PD7..0 PORT B (8) PB7..0 PORT E (8) PE7..0 PORT F (8) PF7..0 PORT J (8) PJ7..0 PG5..0 PORT G (6) PORT H (8) PH7..0 PORT K (8) PK7..0 PORT L (8) PL7..0 XRAM TWI SPI EEPROM JTAG 8bit T/C 0 8bit T/C 2 16bit T/C 1 16bit T/C 3 SRAM FLASH 16bit T/C 4 16bit T/C 5 USART 2 USART 1 USART 0 Internal Bandgap reference Analog Comparator A/D Converter USART 3 NOTE: Shaded parts only available in the 100-pin version. Complete functionality for the ADC, T/C4, and T/C5 only available in the 100-pin version. |
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