ST Microelectronics BNRGM0AL User Manual

BLUENRG-M0A, BLUENRG-M0L

Very low power network processor module for

Bluetooth® low energy v4.2

 On-board chip antenna
 Operating supply voltage: from 1.7 to 3.6 V
 Operating temperature range: -40 °C to 85

°C

Applications

 Watches
 Fitness, wellness and sports
 Consumer medical
 Security/proximity
 Remote control
 Home and industrial automation

Features

 Bluetooth v4.2 compliant

– Supports master and slave modes
– Multiple roles supported simultaneously

 Embedded Bluetooth low energy protocol

stack
– GAP, GATT, SM, L2CAP, LL, RFPHY

 Bluetooth low energy profiles

provided separately

 Embedded ST BlueNRG-MS network

processor
– +5.31 dBm available e.i.r.p. output

power

– Down to -88 dBm Rx sensitivity
– Up to 94 dB link budget with excellent

link reliability

 Host interface

– SPI, IRQ, and RESET
– On-field stack upgrading available via

SPI

 AES security co-processor
 Certification

– CE qualified
– FCC, IC modular approval certified
– ARIB qualified
– BQE qualified

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 Assisted living
 Mobile phone peripherals
 PC peripherals

Description

The BLUENRG-M0x is an easy to use Bluetooth
low energy master/slave network processor
module, compliant with Bluetooth v4.2. The
BLUENRG-M0x module supports multiple roles
simultaneously, and can act at the same time as
Bluetooth low energy sensor and hub device.

The entire Bluetooth low energy stack and
protocols are embedded into BLUENRG-M0x
module. The external host application processor,
where the application resides, is connected to the
BLUENRG-M0x module through a standard SPI
interface.

The BLUENRG-M0x module provides a complete
RF platform in a tiny form factor. Radio, antenna,
high frequency and LPO oscillators are
integrated to offer a certified solution to optimize
the time to market of the final applications.

The BLUENRG-M0x can be powered directly
with a standard 3 V coin cell battery, a pair of
AAA batteries or any power source from 1.7 to

3.6 V.

Datasheet - production data

®

www.st.com

Contents

BLUENRG-M0x

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Contents

Contents

Applications ........................................................................................................................... 1

Features 1

Description ............................................................................................................................ 1

1 General description .................................................................................. 4

2 Block diagram ........................................................................................... 5

3 Software architecture ............................................................................... 6

3.1 Bluetooth firmware implementation .................................................................. 6

4 General characteristics ............................................................................ 7

4.1 Absolute maximum ratings ................................................................................ 7

4.2 Operating conditions .......................................................................................... 7

5 Electrical specification ............................................................................. 8

5.1 Electrical characteristics .................................................................................... 8

5.2 Digital I/O specifications ..................................................................................... 9

5.3 RF General characteristics ................................ ................................................. 9

5.4 Pin assignment.................................................................................................. 10

6 Mechanical dimensions.......................................................................... 11

7 Hardware design ..................................................................................... 11

7.1 Reflow soldering ............................................................................................... 11

8 Regulatory compliance .......................................................................... 13

8.1 FCC certification ............................................................................................... 13

8.1.1 Labeling instructions....................................................................... 13

8.1.2 Product manual instructions ........................................................... 14

8.2 IC certification ................................................................................................... 15

Contents

BLUENRG-M0x

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8.2.1 Labeling instructions....................................................................... 15

8.2.2 Product manual instructions ........................................................... 15

8.3 CE certification .................................................................................................. 16

8.4 Bluetooth certification ...................................................................................... 17

9 Ordering information .............................................................................. 17

10 ECOPACK® .............................................................................................. 18

11 Traceability .............................................................................................. 18

12 Revision history ...................................................................................... 18

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Software architecture

1 General description

The BLUENRG-M0x is a single-mode Bluetooth low energy master/slave network
processor module compliant with Bluetooth® v4.2.

The BLUENRG-M0x module integrates a 2.4 GHz RF radio the ST BlueNRG-MS on
which a complete power-optimized stack for Bluetooth single mode protocol runs,
providing

- Master, slave role support

- GAP: central, peripheral, observer or broadcaster roles

- ATT/GATT: client and server

- SM: privacy, authentication and authorization

- L2CAP

- Link Layer: AES-128 encryption and decryption
The BlueNRG-MS radio embeds nonvolatile Flash memory allows on-field stack
upgrading. In addition, according the Bluetooth specification v4.2 the BLUENRG-M0x
module provides:

- Multiple roles simultaneously support

- Support simultaneous advertising and scanning

- Support being slave of up to two masters simultaneously

- Privacy V1.1

- Low duty cycle directed advertising

- Connection parameters request procedure

- LE Ping

- 32 bits UUIDs

- L2CAP connection oriented channels
The BLUENRG-M0x module is equipped with Bluetooth low energy profiles in C source

code, available for the ST radio BlueNRG-MS.
The external host application processor, where the application resides, is interfaced with

the BLUENRG-M0x module through an application controller interface protocol, which is
based on a standard SPI interface.

The BLUENRG-M0x module enables wireless connectivity into electronic devices, not
requiring any RF experience or expertise for integration into the final product. The
BLUENRG-M0x module provides a complete RF platform in a tiny form factor and being
a certified solution optimizes the time to market of the final applications.

The BLUENRG-M0x module allows applications to meet of the tight advisable peak
current requirements imposed with the use of standard coin cell batteries. Optimized
results are obtained when the embedded high-efficiency DC-DC step-down converter
is used (BLUENRG-M0A). Instead, for the BLUENRG-M0L the best performances in
terms of power consumption are achieved using a 1.8V DC power supply.
BLUENRG-M0x can be powered directly with a standard 3 V coin cell battery, a pair of
AAA batteries or any power source from 1.7 to 3.6 V.

ST may update the FW provided with the modules at any time. ST recommends that
users regularly check for documentation and the current FW version available at
www.st.com/bluemodules.

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Software architecture

2 Block diagram

Figure 1a. HW block diagram for BLUENRG-M0A

Figure 1b. HW block diagram for BLUENRG-M0L

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Software architecture

3 Software architecture

3.1 Bluetooth firmware implementation

The BlueNRG-M0x modules have been designed to work with an external Host processor.
The external Host application processor, where the application resides, is interfaced with
the BlueNRG-MS inside the BlueNRG-M0x modules through an application controller
interface (ACI) protocol which is based on a standard SPI slave interface as transport
layer, basing in five physical wires:

 2 control wires (Clock and “Chip Select”)
 2 data wires with serial shift-out (MOSI and MISO) in full duplex
 1 wire to indicate data availability from the slave (IRQ)

All the SPI pins have an internal pull-down except for the CS that has a pull-up. All the
SPI pins, except the CS, are in high impedance state during the low-power states. The
IRQ pin needs a pull-down external resistor.

Figure 2. BLUENRG-M0A and BLUENRG-M0L application block diagram

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4 General characteristics

Rating

Min

Typ.

Max

Unit

Storage temperature range

-40- +85

°C

Supply voltage, V

IN

-0.3- 3.9

V

I/O pin Voltage (V

IO

five-volt tolerant pin)

-0.3- 3.9

V

RF saturation input power

- 8 -

dBm

VESD-HBM Electrostatic discharge voltage

±2.0 kV

kV

Rating

Min

Typ.

Max

Unit

Storage temperature range

-40- +85

°C

Operating ambient temperature range

-40- +85

°C

Supply voltage, V

IN

1.7

3.3

3.6

V

Signals & I/O pin voltage
(according supply voltage)

1.7 - 3.6

V

Frequency range

2402

-

2480

MHz

4.1 Absolute maximum ratings

Table 1. Absolute maximum ratings

4.2 Operating conditions

Table 2. Operating conditions

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5 Electrical specification

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

I

DD

Supply current

Reset 5 nA

Standby

1.8

uA

Sleep mode: 32 kHz XO ON (12 KB retention RAM)
Mode 1

1.7

μA

Sleep mode: 32 kHZ XO ON (24 KB retention RAM)
Mode 2

2.2

Active mode

2.12

mA

RX

9.36

mA

TX +8 dBm

16.50

mA

TX +4 dBm

12.04

mA

TX +2 dBm

10.40

mA

TX -2 dBm

9.44

mA

TX -5 dBm

8.79

mA

TX -8 dBm

8.29

mA

TX -11 dBm

8.01

mA

TX -14 dBm

7.82

mA

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

I

DD

Supply current

Reset

N/A

nA

Standby

1.7

uA

Sleep mode: 32 kHz RO ON (12 KB retention RAM)
Mode 1

2.8

μA

Sleep mode: 32 kHZ RO ON (24 KB retention RAM)
Mode 2

3.2

Active mode

2.54

mA

RX

16.36

mA

TX +8 dBm

29.16

mA

TX +4 dBm

21.3

mA

TX +2 dBm

18.29

mA

5.1 Electrical characteristics

Characteristic measured over recommended operating condition unless otherwise
specified. Typical value are referred to VIN= 3.3 V, 25 °C, SMPS on, XO 32KHz and

32MHz.

Table 2a. Electrical characteristics for the BLUENRG-M0A

Characteristic measured over recommended operating condition unless otherwise
specified. Typical value are referred to VIN= 3.3 V, 25 °C, SMPS off, RO 32KHz and

32MHz.

Table 2b. Electrical characteristics for the BLUENRG-M0L