AT90USB647 datasheet(5/35 Pages) ATMEL

5 / 35 page

7593KS–AVR–11/09

AT90USB64/128

AT90USB64/128 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

PROGRAM

COUNTER

ST ACK

POINTER

PROGRAM

FLASH

MCU CONTROL

SRAM

GENERAL

PURPOSE

REGISTERS

INSTRUCTION

TIMER/

COUNTERS

INSTRUCTION

DECODER

DATA DIR.

REG. PORTB

DATA DIR.

REG. PORTE

DATA DIR.

REG. PORT A

DATA DIR.

REG. PORTD

DATA REGISTER

PORTB

DATA REGISTER

PORTE

DATA REGISTER

PORT A

DAT A REGISTER

PORTD

INTERRUPT

UNIT

EEPROM

SPI

USART1

ST ATUS

ALU

POR TB DRIVERS

POR TE DRIVERS

POR TA DRIVERS

POR TF DRIVERS

POR TD DRIVERS

POR TC DRIVERS

PB7 - PB0

PE7 - PE0

PA7 - P A0

PF7 - PF0

VCC

AGND

GND

AREF

CONTROL

LINES

PC7 - PC0

INTERNAL

OSCILLA TOR

WATCHDOG

TIMER

8-BIT DA TA BUS

AVCC

USB

TIMING AND

CONTROL

OSCILLA TOR

CALIB. OSC

DATA DIR.

REG. PORT C

DATA REGISTER

PORT C

ON-CHIP DEBUG

JTAG TAP

PROGRAMMING

LOGIC

BOUNDARY-

SCAN

DATA DIR.

REG. PORT F

DATA REGISTER

PORT F

ADC

POR - BOD

RESET

PD7 - PD0

TWO-WIRE SERIAL

INTERFACE

PLL

AT90USB647 Datasheet(PDF) 5 Page - ATMEL Corporation

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