ST Microelectronics S R L SPBTLERF SPBTLE-RF Bluetooth Low Energy Module User Manual SPBT2632C1A AT
ST Microelectronics S.R.L. SPBTLE-RF Bluetooth Low Energy Module SPBT2632C1A AT
Datasheet

 SPBTLE-RF 
Bluetooth® V4.1 Smart module 
    Product preview 
Jan 2015 - rev 0.1 
This is preliminary information on a new product now in development or undergoing evaluation.  Details are 
subject to change without notice. www.st.com    www.st.com 
Features 
 Bluetooth Radio 
-  Bluetooth specification v4.1 compliant   
-  Master and slave Smart Bluetooth network 
processor module 
-  Embedded Bluetooth low energy protocol 
stack: GAP, GATT, SM, L2CAP, LL, 
RF-PHY 
-  Bluetooth low energy profiles provided 
separately 
-  Operating temperature range: -40°C to 
85°C 
 Host Interface 
-  SPI, IRQ, and RESET 
 Antenna on board 
 CE, FCC, IC qualified 
 BQE certified 
Preliminary module picture 
11.5 mm x 13.5 mm x 2.0 mm

SPBTLE-RF 
P a g e  | 2  Rev 0.1   
 1  Description 
The SPBTLE-RF is an easy to use Bluetooth® module, compliant with Bluetooth® v4.1. 
The module provides a complete RF platform in a tiny form factor.   
 The SPBTLE-RF enables wireless connectivity into electronic devices, not requiring any 
RF  experience  or  expertise  for  integration  into  the  final  product.  The  SPBTLE-RF 
module, being a certified solution, optimizes the time to market of the final applications. 
The module has been designed for maximum performance in a minimal space. 
Optimized design allows the integration of a complete working Bluetooth® modem in the 
minimum possible size. Module interface is SPI serial interface. 
2  Applications 
  Watches 
  Fitness, wellness and sports 
  Consumer medical 
  Security/proximity 
  Remote control 
  Home and industrial automation 
  Assisted living 
  Mobile phone peripherals 
  PC peripherals 

SPBTLE-RF 
 Rev 0.1  P a g e  | 3 
3  Block Diagram 
Figure 1. HW block diagram 
RF  antenna
Battery or External Supply
SPI  LINE
BLUETOOTH
BLUENRG
Host Controller
interface
External LPO
(32.768 kHz)
32.768 kHz
BLUETOOTH L.E.. 2014 Module
 Crystal
32 MHz
clock
SUPPLY FILTER 
Bead Ferrite
RF
BALUN
 + Filter
Internal / Ext.
32.768 kHz
clock
INTERNAL 2.45 GHz
                                         OPTIONAL PIN FUNCTION             

SPBTLE-RF 
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4   Software Architecture 
Bluetooth Firmware implementation   
Figure 2. SPBTLE-RF Application Block Diagaram 

SPBTLE-RF 
 Rev 0.1  P a g e  | 5 
5  Hardware Specifications 
General Conditions (VIN= 2.2V and 25°C) 
 5.1 Absolute Maximum Ratings 
Table 1. Absolute maximum rating 
Rating 
Min 
Typical 
Max 
Unit 
Storage temperature range   
-40 
- 
+85 
°C 
Supply voltage, VIN 
-0.3 
- 
+ 3.9 
Volts 
I/O pin Voltage 
(VIO five-volt tolerant pin) 
-0.3 
- 
+ 3.9 
Volts 
RF saturation input power 
- 
8   
-   
dBm 
5.2 Recommended Operating Conditions 
Table 2. Recommended operating conditions 
Rating 
Min 
Typical 
Max 
Unit 
Operating Temperature Range 
-40 
- 
85 
°C 
Supply Voltage VIN 
2.0 
3.3 
3.6 
Volts 
Signals & I/O Pin Voltage   
(according Supply Voltage) 
2.0 
- 
3.6 
Volts 
RF Frequency 
2402 
- 
2480 
MHz 
 5.3 Pin assignement   
Figure 3. Pin connection 

SPBTLE-RF 
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Table 3. Pin Assignement 
Name 
Type 
Pin # 
Description 
ALT Function 
V max. Tolerant 
Initial State 
SPI Interface 
SPI_IRQ 
O 
4 
SPI IRQ(SLAVE has data for MASTER) 
Vin 
SPI_CLK 
I 
7 
SPI CLOCK (Max. 8 MHz) 
Vin 
SPI_MISO 
O 
8 
SPI MISO (MASTER in / SLAVE out) 
Vin 
SPI_MOSI 
I 
9 
SPI MOSI (MASTER out SLAVE in) 
Vin 
SPI_CS 
I 
10 
SPI “Chip Select” (SPI slave select) 
Vin 
Power and Ground 
Vin 
5 
Vin 
(2.0V + 3.6V max.) 
GND 
6 
GND 
Reset 
BT_RESET 
I 
11 
Reset input (active low < 0.35 Vin) 
(2.0V + 3.6V max.). 
LPO 
EXT_LPCLK 
I 
1 
Not connected / Optional pin function 
(2.0V + Vin max.). 
GPIO2 
I/O 
2 
Not connected 
ANA TEST 0 
I 
3 
Not connected   

SPBTLE-RF 
 Rev 0.1  P a g e  | 7 
6  Mechanical dimensions 
Figure 4. Mechanical dimensions   

SPBTLE-RF 
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Figure 5. Recommend land pattern top view 

SPBTLE-RF 
 Rev 1.0  P a g e  | 9 
7  Hardware design 
SPBTLE-RF module supports SPI hardware interfaces.   
Notes 
 All unused pins should be left floating; do not ground. 
 All GND pins must be well grounded. 
 The area around the module should be free of any ground planes, power planes, trace 
routings, or metal for 6 mm from the module antenna position, in all directions.   
 Traces should not be routed underneath the module. 
 8  Reflow soldering 
 The SPBTLE-RF is a high temperature strength surface mount Bluetooth® module supplied on a 11 
pin, 4-layer PCB. The final assembly recommended reflow profiles are indicated here below. 
Soldering phase has to be executed with care: in order to avoid undesired melting phenomenon, 
particular attention has to be taken on the set up of the peak temperature. 
Here following some suggestions for the temperature profile based on IPC/JEDEC J-STD-020C, 
July 2004 recommendations. 
Table 4. Soldering 
Profile feature 
PB-free assembly 
Average ramp up rate (TSMAX to Tp) 
3°C/ sec max 
Preheat 
Temperature min (TS mn) 
Temperature max (TS max) 
Time (tS min to tS max) (tS) 
150 °C 
200 °C 
60-100 sec 
Time maintained above: 
Temperature TL 
Time tL 
217 °C 
60-70 sec 
Peak temperature (TP) 
240 + 0 °C 
Time within 5 °C of actual peak temperature (TP) 
10-20 sec 
Ramp down rate 
6 °C/sec 
Time from 25 °C to peak temperature 
8 minutes max 

SPBTLE-RF 
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Figure 6. Soldering profiles 
 9  RoHS compliance 
ST Bluetooth modules comply with the ECOPACK2 level of RoHS compliance grade. 
 10   Ordering Information 
Table 5. Ordering information 
Order code 
Description 
Packing   
MOQ 
SPBTLE-RF 
Bluetooth® V4.0 Smart module 
Jedec tray 
2’448 pcs 

SPBTLE-RF 
 Rev 1.0  P a g e  | 11 
 11   Traceability 
Each module is univocally identified by serial number stored in a 2D data matrix laser 
marked on the bottom side of the module itself. 
The serial number has the following format: 
WW YY D FF NNN 
where 
WW = week 
YY = year 
D = product ID family 
FF = production panel coordinate identification 
NNN = progressive serial number. 
Each module bulk is identified by a bulk ID. 
BULK ID and module 2D data matrix are linked by a reciprocal traceability link. 
The module 2D data matrix traces the lot number of any raw material used. 

SPBTLE-RF 
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 12    Regulatory compliance 
12.1        FCC certification 
This module has been tested and found to comply with the FCC part 15 rules. These 
limits are designed to provide reasonable protection against harmful interference in 
approved  installations.  This  equipment  generates,  uses,  and  can  radiate  radio 
frequency energy and, if not installed and used in accordance with the instructions, 
may cause harmful interference to radio communications. 
However,  there  is  no  guarantee  that  interference  may  not  occur  in  a  particular 
installation. 
This device complies with part 15 of the FCC rules. Operation is subject to the following 
two conditions: (1) This device may not cause harmful interference, and (2) this device 
must  accept  any  interference  received,  including  interference  that  may  cause 
undesired operation. 
Modifications  or  changes  to  this  equipment  not  expressly  approved  by 
STMicroelectronics may render void the user's authority to operate this equipment. 
Modular approval 
FCC ID: S9NSPBTLERF 
In accordance with FCC part 15, the SPBTLE-RF is listed as a modular transmitter 
device. 
This module is evaluated for stand-alone use only.   Finished products incorporating 
multiple transmitters must comply with colocation and RF exposure requirements in 
accordance with FCC multi-transmitter product procedures.    Collocated transmitters 
operating in portable RF Exposure conditions (e.g. <20cm from persons including but 
not limited to body worn and hand held devices) may require separate approval. 
                Labeling instructions 
When integrating the SPBTLE-RF into the final product, the OEM must ensure that the 
FCC labeling requirements are satisfied. A statement must be included on the exterior 
of the final product which indicates the product includes a certified module. The label 
should state the following (or similar wording that conveys the same meaning): 
Contains FCC ID: S9NSPBTLERF  
OR   This product contains FCC ID: S9NSPBTLERF  
The OEM must include the following statements on the exterior of the final product 
unless the product is too small (e.g. less than 4 x 4 inches): 
This  device  complies  with  Part  15  of  the  FCC  Rules.  Operation  is  subject  to  the 
following two conditions: (1) this device may not cause harmful interference, and (2) 
this device must accept any interference received, including any interference that may 
cause undesired operation. 

SPBTLE-RF 
 Rev 1.0  P a g e  | 13 
                Product manual instructions 
This section applies to OEM final products containing the SPBTLE-RF module, subject 
to FCC compliance. The final product manual must contain the following statement (or 
a similar statement that conveys the same meaning): 
WARNING:    Changes  or  modifications  not  expressly  approved  by  the  party 
responsible for compliance could void the user’s authority to operate the equipment.   
(Part. 15.21) 
In the case where an OEM seeks Class B (residential) limits for the final product, the 
following statement must be included in the final product manual: 
NOTE: This equipment has been tested and found to comply with the limits for a Class 
B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to 
provide reasonable protection against harmful interference in a residential installation. 
This equipment generates, uses and can radiate radio frequency energy and, if not 
installed and used in accordance with the instructions, may cause harmful interference 
to  radio  communications.  However, there is  no guarantee that interference will not 
occur in a particular installation. If this equipment does cause harmful interference to 
radio or television reception, which can be determined by turning the equipment off and 
on, the user is encouraged to try to correct the interference by one or more of the 
following measures: 
 Reorient or relocate the receiving antenna. 
 Increase the separation between the equipment and receiver. 
 Connect the equipment into an outlet on a circuit different from that to which 
the receiver is connected. 
 Consult the dealer or an experienced radio/TV technician for help. 
In the case where an OEM seeks the lesser category of a Class A digital device for the 
final product, the following statement must be included in the final product manual: 
NOTE: This equipment has been tested and found to comply with the limits for a Class 
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to 
provide  reasonable  protection  against  harmful  interference  when  the  equipment  is 
operated  in  a  commercial  environment.  This  equipment  generates,  uses,  and  can 
radiate radio frequency energy and, if not installed and used in accordance with the 
instruction  manual,  may  cause  harmful  interference  to  radio  communications. 
Operation of this equipment in a residential area is likely to cause harmful interference 
in which case the user will be required to correct the interference at his expense. 

SPBTLE-RF 
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12.2        IC certification 
 The SPBTLE-RF  module  has been  tested  and found  compliant  with the IC  RSS-210 rules. 
These  limits  are  designed  to  provide  reasonable  protection  against  harmful  interference  in 
approved  installations.  This  equipment  generates,  uses,  and  can  radiate  radio  frequency 
energy and, if not installed and used in accordance with the instructions, may cause harmful 
interference to radio communications. 
However, there is no guarantee that interference may not occur in a particular installation. 
This device complies with RSS-210 of the IC rules. Operation is subject to the following two 
conditions: (1) this device may not cause harmful interference, and (2) this device must accept 
any interference received, including interference that may cause undesired operation. 
Modifications or changes to this equipment not expressly approved by STMicroelectronics may 
render void the user's authority to operate this equipment. 
Modular approval 
IC: 8976C-SPBTLERF 
In accordance with IC RSS-210, the SPBTLE-RF is listed as a modular transmitter device. 
This module is evaluated for stand-alone use only.    Finished products incorporating multiple 
transmitters must comply with colocation and RF exposure requirements in accordance with IC 
multi-transmitter  product  procedures.    Collocated  transmitters  operating  in  portable  RF 
Exposure conditions (e.g. <20cm from persons including but not limited to body worn and hand 
held devices) may require separate approval. 
12.2.1 Labeling instructions 
When integrating  the  SPBTLE-RF  into  the  final  product,  the  OEM  must  ensure that  the  IC 
labeling requirements are satisfied. A statement must be included on the exterior of the final 
product which indicates that the product includes a certified module. The label should state the 
following (or similar wording that conveys the same meaning): 
Contains IC: 8976C-SPBTLERF 
OR    This product contains IC: 8976C-SPBTLERF 
The OEM must include the following statements on the exterior of the final product unless the 
product is too small (e.g. less than 4 x 4 inches): 
This device complies with RSS-210 of the IC Rules. Operation is subject to the following two 
conditions: (1) this device may not cause harmful interference, and (2) this device must accept 
any interference received, including any interference that may cause undesired operation. 
12.2.2 Product manual instructions 
This section applies to OEM final products containing the SPBTLE-RF module, subject to IC 
compliance.  The  final  product  manual  must  contain  the  following  statement  (or  a  similar 
statement that conveys the same meaning): 
WARNING:    Changes or modifications not expressly approved by the party responsible for 
compliance could void the user’s authority to operate the equipment.    (RSS-210) 

SPBTLE-RF 
 Rev 1.0  P a g e  | 15 
In the case where an OEM seeks Class B (residential) limits for the final product, the following 
statement must be included in the final product manual: 
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital 
device, pursuant to RSS-210 of the IC Rules. These limits are designed to provide reasonable 
protection against harmful interference in a residential installation. This equipment generates, 
uses and can radiate radio frequency energy and, if not installed and used in accordance with 
the instructions, may cause harmful interference to radio communications. However, there is no 
guarantee that  interference will  not  occur  in  a  particular  installation.  If  this  equipment does 
cause harmful interference to radio or television reception, which can be determined by turning 
the equipment off and on, the user is encouraged to try to correct the interference by one or 
more of the following measures: 
 Reorient or relocate the receiving antenna. 
 Increase the separation between the equipment and receiver. 
 Connect  the  equipment  into  an  outlet  on  a  circuit  different  from  that  to  which  the 
receiver is connected. 
 Consult the dealer or an experienced radio/TV technician for help. 
In the case where an OEM seeks the lesser category of a Class A digital device for the final 
product, the following statement must be included in the final product manual: 
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital 
device, pursuant to RSS-210 of the IC Rules. These limits are designed to provide reasonable 
protection  against  harmful  interference  when  the  equipment  is  operated  in  a  commercial 
environment. This equipment generates, uses, and can radiate radio frequency energy and, if 
not  installed  and  used  in  accordance  with  the  instruction  manual,  may  cause  harmful 
interference to radio communications. Operation of this equipment in a residential area is likely 
to cause harmful interference in which case the user will be required to correct the interference 
at his expense. 

SPBTLE-RF 
P a g e  | 16 Rev 0.1   
CE certification for SPBTLE-RF module 
The SPBTLE-RF module has been certified according to the following standards: 
EN 60950-1:2006 + A11:2009 + A12:2011 + A1:2010 + A2:2013 + AC:2011 
ETSI EN 301 489-1 V1.9.2:2011 
ETSI EN 301 489-17 V2.2.1 
ETSI EN 300 328 V1.8.1 :2012 
ETSI EN 300 328 V1.9.1 (2015) 
EN62479 :2010 
The module is CE certified: 

SPBTLE-RF 
 Rev 1.0  P a g e  | 17 
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