BM20SPKS1NBC View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

BM20SPKS1NBC

Bluetooth® 4.0 Dual Mode Module

Unspecified 

RN4677

Figure 1-4 and Figure 1-5 show the recommended bypass capacitor location and values. Capacitors can be low ESR

ceramic and must be placed closely to the RN4677 module.

FIGURE 1-4:

RN4677 TO MCU INTERFACE EXAMPLE - LDO

VIN

(3.3V)

LDO

RN4677 Module

MCU

BAT_IN

P15/STATUS_IND_1

I/O

10uF

(3.2 – 4.3V) P04/STATUS_IND_2

I/O

SW_BTN

I/O

NC

LDO33_O

WAKEUP

I/O

RST_N

I/O

VDD

Note 1

P37

VDD_IO (Note 1)

P34

(2.8 – 3.63V)

P33

P32

NC

LDO18_O

Note 2

P31

P05

P00/RTS

P17/CTS

NC

PMULDO_O

TXD

RXD

LED1

P12/SCL

NC

P13/SDA

NC

P36

NC

I/O

I/O

I/O

I/O

I/O

I/O

CTS

RTS

RX

TX

FIGURE 1-5:

Li-ion Battery

(3.7V)

System Configuration

Note: 1. Ensure VDD_IO and MCU VDD voltages are compatible.

2. Control and indication ports are configurable.

RN4677 TO MCU INTERFACE EXAMPLE - BATTERY

(3.3V)

LDO

RN4677 Module

10uF

BAT_IN

(3.2 – 4.3V)

P15/STATUS_IND_1

P04/STATUS_IND_2

10uF

LDO33_O

SW_BTN

WAKEUP

RST_N

P37

VDD_IO (Note 1)

P34

(2.8 – 3.63V)

P33

P32

NC

LDO18_O

Note 2

P31

P05

P00/RTS

P17/CTS

NC

PMULDO_O

TXD

RXD

LED1

P12/SCL

NC

P13/SDA

NC

P36

NC

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

CTS

RTS

RX

TX

MCU

VDD

Note 1

DS50002370A-page 8

System Configuration

Note: 1. Ensure VDD_IO and MCU VDD voltages are compatible.

2. Control and indication ports are configurable.

Advance Information

 2015 Microchip Technology Inc.

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