BM78_V01 datasheet(7/60 Pages) MICROCHIP

部品番号	BM78

部品情報	Bluetooth® Dual-Mode Module

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 2016-2019 Microchip Technology Inc.

DS60001380B-Page 7

BM78

20

18

EAN

DI

External address-bus negative

System configuration pin along with P2_0 and P2_4

pins used to set the module in any of the three modes:

• Application mode (for normal operation),

• Test mode (to change EEPROM values), and

• Write Flash mode (to download the firmware into

the module), refer to Table 2-1

ROM: Must be pulled high to VDD_IO

FLASH: Must be pulled down with 4.7 kOhm to Ground

21

19

RST_N

DI

Module Reset (active-low) (internal pull up)

Apply a pulse of at least 63 ns

22

20

HCI_RXD

DI

UART data input

23

21

HCI_TXD

DO

UART data output

24

22

P3_1

DIO

Configurable control or Indication pin

(Internally pulled-up, if configured as an input)

25

23

P3_2

DIO

Configurable control or Indication pin

(Internally pulled-up, if configured as an input)

26

24

P3_3

DIO

Configurable control or Indication pin

(Internally pulled-up, if configured as an input)

27

25

P3_4

DIO

Configurable control or Indication pin

(Internally pulled-up, if configured as an input)

28

26

P3_6

DIO

Do not connect

29

27

P3_7

DIO

Configurable control or Indication pin

(Internally pulled-up, if configured as an input)

30

28

LED1

DO

LED driver, connect to LDO33_0

31

29

GND

Power

Ground reference

—

30

BT_RF

AIO

External antenna connection (50 Ohm)

32

—

GND

Power

Ground reference

33

—

GND

Power

Ground reference

Legend:

A = Analog

D = Digital

I = Input

O = Output

TABLE 1-1:

PIN DESCRIPTION (CONTINUED)

S5 Pin

05 Pin

Symbol

Type

Description

同様の部品番号 - BM78_V01

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