National Instruments USB-6008/6009 Manual De Usuario

© National Instruments Corporation

The following block diagram shows key functional components of the 
USB-6008/6009.

Figure 3.  Device Block Diagram

P1.<0..3>

P0.<0..7>

Digital I/O 

T

e

rminal Bloc

k

AI <0..7>

AO  0 

AO  1 

Analog I/O 

T

e

rminal Bloc

k

+2.5 V/CAL

+5 V/200 mA

8 Channel

12/14b ADC

12b DAC

12b DAC

USB Microcontroller

SPI

External

Power

Supply

Vbus

Full-Speed USB Interf

ace

USB

PFI 0