Datasheet 搜索 > 微控制器 > Microchip（微芯） > ATMEGA3250V-8AI 数据手册 > ATMEGA3250V-8AI 用户编程技术手册 4/362 页
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ATMEGA3250V-8AI 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
TQFP-100
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P2P6P62Hot
典型应用电路图在P191
原理图在P4P10P60P85P87P88P90P103P108P109P111P113
封装尺寸在P347P348P349
型号编码规则在P343P344P345P346P354
封装信息在P347
功能描述在P186
技术参数、封装参数在P60
应用领域在P33P41P50P53P54P251P255P265P266
电气规格在P60
导航目录
ATMEGA3250V-8AI数据手册
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4
2570N–AVR–05/11
ATmega325/3250/645/6450
2. Overview
The Atmel ATmega325/3250/645/6450 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
Atmel ATmega325/3250/645/6450 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
The Atmel
®
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 inde-
pendent registers to be accessed in one single instruction executed in one clock cycle. The
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 - PB7PE0 - PE7
PA0 - PA7PF0 - PF7
VCCGND
XTAL1
XTAL2
CONTROL
LINES
+
-
ANALOG
COMPARATOR
PC0 - PC7
8-BIT DATA BUS
RESET
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
PORTH DRIVERS
PH0 - PH7
DATA DIR.
REG. PORTH
DATA REGISTER
PORTH
PORTJ DRIVERS
PJ0 - PJ6
DATA DIR.
REG. PORTJ
DATA REGISTER
PORTJ
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