BT820 datasheet(8/39 Pages) LSTD

Part #	BT820

Description	Dual-Mode USB HCI Module

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Manufacturer	LSTD [Laird Tech Smart Technology]

Direct Link	http://www.lairdtech.com/

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BT800

Datasheet

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

8

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

#

Pin Name

I/O

Supply

Domain

Description

If Unused

20

PCM_CLK/

SPI_CLK/

PIO24

Bidirectional, tri-

state, with weak

internal pull-

down

VDD_PADS

PCM synchronous data clock

SPI clock

Programmable input/output line

*See Note 1.

NC

21

PCM_IN/

SPI_MOSI/

PIO21

Input, tri-state,

with weak

internal pull-

down

VDD_PADS

PCM synchronous data input

SPI data input

Programmable input/output line

*See Note 1.

NC

22

PCM_OUT/

SPI_MISO/

PIO22

Output, tri-state,

with weak

internal pull-

down

VDD_PADS

PCM synchronous data output

SPI data output

Programmable input/output line

*See Note 1.

NC

23

PIO0/

WLAN_ACTIVE

Bidirectional, tri-

state, with weak

internal pull-

down

VDD_PADS

Programmable input/output line

NC

24

GND

-

Ground

GND

25

PIO1/

BT_PIRORITY

Bidirectional, tri-

state, with weak

internal pull-

down

VDD_PADS

Programmable input/output line

NC

26

PIO2/

BT_ACTIVE

Bidirectional, tri-

state, with weak

internal pull-

down

VDD_PADS

Programmable input/output line

NC

27

VDD_PADS

Power supply

(1.7V-3.6V)

Positive supply for digital I/O pads

N/A

28

PIO5

Bidirectional, tri-

state, with weak

internal pull-

down

VDD_PADS

Programmable input/output line

NC

Pin Definition Note:

Note 1

The purpose of the SPI interface is to access the module’s inner settings such as selecting different

WLAN CO-EXIST scheme and enabling HID proxy mode. The SPI interface can also be used to put the

module in RF test mode. You cannot use the module over the SPI interface for normal operation as

the main host interface.

6 DC ELECTRICAL CHARACTERISTICS

Table 3: Absolute maximum ratings

Rating

Min

Max

Unit

Storage temperature

-40

+85

⁰C

VREG_IN_USB

-0.2

5.75

V

VREG_IN_HV

-0.2

4.9

V

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