ST Life.augmented


Bluetooth V3.0 module class 1, supporting SPP and iAP with AT2 command set
  • active Active

The SPBT2632C1A.AT2 is an easy to use Bluetooth module, compliant with Bluetooth v3.0.

The module provides complete RF platform in a small form factor.

The SPBT2632C1A.AT2 enables electronic devices with wireless connectivity, not requiring any RF experience or expertise for integration into the final product. The SPBT2632C1A.AT2 module, being a certified solution, optimizes the time to market of the final application.

The module is designed for maximum performance in a minimal space including fast speed UART and 16 general purpose I/O lines, several serial interface options, and up to 560 kbps transmission speed with SPP service active, 250 kbps with iAP service active.

An optimized design allows the integration of a complete working Bluetooth modem, including antenna and LPO (low power oscillator), enabling low power mode capability in the minimum possible size.

The SPBT2632C1A.AT2 is a surface mount PCB module that provides fully embedded, ready-to-use Bluetooth wireless technology. The reprogrammable Flash memory contains embedded firmware for serial cable replacement using the Bluetooth SPP profile.

Embedded Bluetooth AT2 command firmware is a friendly interface, which realizes a simple control for cable replacement, enabling communication with most Bluetooth enabled devices, provided that the devices support SPP profile. The SPBT2532C1A.AT2, supporting iAP profile, provides communication with Android, smartphone and Apple® iOS Bluetooth enabled devices. An Apple authentication IC is required to exchange data with an Apple device or access an Apple device application. The AT2 FW includes the Bluetooth SPP profile capable of recognizing the Apple authentication chip.

Customers using the Apple authentication IC must register as developers, to become an Apple certified MFI member. License fees may apply, for additional information visit:

Certified MFI developers developing electronic accessories that connect to an iPod®, iPhone®, and iPad® can gain access to technical documentation, hardware components, technical support and certification logos.

Customized firmware for peripheral device interaction, power optimization, security, and other proprietary features may be supported and can be ordered pre-loaded and configured.

pdf Download

Key Features

  • Bluetooth radio
  • Fully embedded Bluetooth® v3.0 with profiles
  • Class 1 module
  • Complete RF ready module
  • 128-bit encryption security
  • Range up to 60 m LOS
  • Integrated antenna
  • Multipoint capability
  • ST Micro Cortex-M3 microprocessor up to 72 MHz (256kb flash, 48kb RAM memory)
  • Modem transmitter speed
  • With SPP service active: 560kbps transmission speed
  • General I/O
  • 16 general purpose I/Os
  • User interface
  • AT2 command set (abSerial)
  • Firmware upgrade over UART
  • FCC and Bluetooth® qualified
  • Single voltage supply: 2.5 V typical
  • Small form factor: 15 x 27 x 2.9 mm
  • Operating temperature range: -40 °C to 85 °C

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS8950: Bluetooth® technology class-1 module
6.0 715 KB

Application Notes

Description Version Size
AN4128: Demonstration board for Bluetooth® module class 1 SBT2632C1A.AT2
1.0 1,214 KB

User Manual

Description Version Size
UM1547: Using the firmware of the AT command set
5.0 518 KB

Presentations & Training Material


Description Version Size
Bluetooth modules
1.0.0 976 KB
Classic Bluetooth® 3.0 modules - A Comprehensive User Guide
1.0 1,472 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STEVAL-SPBT4ATV3 USB dongle for the Bluetooth® class 1 SPBT2632C1A.AT2 module

Publications and Collaterals


Description Version Size
Micro-sized Bluetooth modules
1.0.0 3,518 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
SPBT2632C1A.AT2ActiveRF MODULETray-4085_Buy Direct13.87Distributor reported inventory date: 2016-02-29
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA8481020
ANGLIA LiveOrder NowEUROPE6860
Farnell Element14Order NowEUROPE1981

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.