BTM420 datasheet(8/21 Pages) LSTD

номер детали	BTM420

подробное описание детали	Changes and Revisions

PDF	21 Pages

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производитель	LSTD [Laird Tech Smart Technology]

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BTM420/421

Bluetooth

® Data Module Hardware Integration Guide

Embedded Wireless Solutions Support

Center: http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Laird

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852-2268-6567 x026

2.3 Operating Parameters

Table 4: Recommended Operating Conditions

Recommended Operating Conditions

OPERATING CONDITION

MIN

MAX

VDD_USB (USB compatibility not required)

1.7

3.6

VDD_USB (USB compatibility required)

3.1

3.6

VDD_IO

1.7

3.3

VDD_IN

3.0

3.3

2.4 Voltage Specifications

Table 5: Logic Levels (VUSB)

Logic Levels (VUSB)

INPUT VOLTAGE LEVELS

MIN

TYP

MAX

Vih

0.7VDD_USB

Vil 2.7 <VDD_USB<3.0

-0.4

+0.8

1.7<VDD_USB<1.9

-0.4

+0.4

Output Voltage Levels (1.7 <VDD_USB_1.9)

Voh (lout = -4mA)

VDD_USB – 0.4

Vol (lout = 4mA)

Output Voltage Levels (2.7<VDD_USB<3.0)

Voh (lout = -4mA)

VDD_USB – 2.0

Vol (lout = 4mA)

0.2

Note: VDD_USB must be connected to power the USB and UART interfaces.

Table 6: Logic Levels (VIO)

Logic Levels (VIO)

INPUT VOLTAGE LEVELS

MIN

TYP

MAX

Vih

0.7VDD_IO

Vil 2.7 <VDD_IO<3.0

-0.4

+0.8

1.7<VDD_IO<1.9

-0.4

+0.4

Output Voltage Levels (1.7 < VDD_IO < 1.9)

Voh (lout = -4mA)

VDD_IO – 0.4

Vol (lout = 4mA)

0.4

Output Voltage Levels (2.7 < VDd_IO < 3.0)

Voh (lout = -4mA)

VDD_IO – 0.2

Vol (lout = 4mA)

0.2

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