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ATMEGA325P 数据表(PDF) 4 Page - ATMEL Corporation |
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ATMEGA325P 数据表(HTML) 4 Page - ATMEL Corporation |
4 / 336 page 4 8023A–AVR–12/06 ATmega325P/3250P 2.1 Block Diagram Figure 2-1. Block Diagram The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than con- ventional CISC microcontrollers. PROGRAM COUNTER INTERNAL OSCILLATOR WATCHDOG TIMER STACK POINTER PROGRAM FLASH MCU CONTROL REGISTER SRAM GENERAL PURPOSE REGISTERS INSTRUCTION REGISTER TIMER/ COUNTERS INSTRUCTION DECODER DATA DIR. REG. PORTB DATA DIR. REG. PORTE DATA DIR. REG. PORTA DATA DIR. REG. PORTD DATA REGISTER PORTB DATA REGISTER PORTE DATA REGISTER PORTA DATA REGISTER PORTD TIMING AND CONTROL OSCILLATOR INTERRUPT UNIT EEPROM SPI USART STATUS REGISTER Z Y X ALU PORTB DRIVERS PORTE DRIVERS PORTA DRIVERS PORTF DRIVERS PORTD DRIVERS PORTC DRIVERS PB0 - PB7 PE0 - PE7 PA0 - PA7 PF0 - PF7 VCC GND CONTROL LINES PC0 - PC7 8-BIT DATA BUS CALIB. OSC DATA DIR. REG. PORTC DATA REGISTER PORTC ON-CHIP DEBUG JTAG TAP PROGRAMMING LOGIC BOUNDARY- SCAN DATA DIR. REG. PORTF DATA REGISTER PORTF ADC PD0 - PD7 DATA DIR. REG. PORTG DATA REG. PORTG PORTG DRIVERS PG0 - PG4 AGND AREF AVCC UNIVERSAL SERIAL INTERFACE AVR CPU |
类似零件编号 - ATMEGA325P_06 |
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类似说明 - ATMEGA325P_06 |
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