Texas Instruments BUF08821EVM-USB BUF08821EVM-USB BUF08821EVM-USB 데이터 시트

Adjustable

Regulator

8052 C

m

with USB Interface

and UART

3.3V

Regulator

8K byte

EEPROM

V

CC

(2.7V to 5.5V)

V

C

m

S

3.3V

V

USB

5V

V

DUT

(2.7V to 5.5V)

Reset Button and

Power-On Reset

Buffers and

Latches

Calibration

EEPROM

Power

Switching

Switched
Power

External

Power

(6V dc)

USB Bus

from

Computer

I C/SPI

2

Control and
Measure Bits

www.ti.com

shows the block diagram for the USB_DIG_Platform. This platform is a general-purpose data

acquisition system that is used on several different Texas Instruments evaluation modules. The details of
its operation are included in a separate document,

(available for download at

). The

block diagram shown in

gives a brief overview of the platform. The primary control device on the

USB_DIG_Platform is the

The BUF08821EVM-USB hardware overview involves connecting the two PCBs of the EVM together,
applying power, connecting the USB cable, and setting the jumpers. This section presents the details of
this procedure.

Many of the components on the BUF08821EVM-USB are susceptible to
damage by electrostatic discharge (ESD). Customers are advised to observe
proper ESD handling precautions when unpacking and handling the EVM,
including the use of a grounded wrist strap at an approved ESD workstation.

6

SBOU095 – March 2011

© 2011, Texas Instruments Incorporated