STMicroelectronics SPBT3.0DP2

Overview

SPBT3.0DP2 from STMicroelectronics is a Bluetooth 3.0 Class 2 module with embedded Data Package (DP) firmware supporting SPP, HID, and iAP2 profiles for iOS accessory integration. It operates at 2.4 GHz ISM band, delivers +4 dBm RF output power, supports UART host interface up to 2 Mbps, and implements bonding, encryption, sniff mode, and deep sleep for low-power operation in portable MFi-compliant accessories.

For engineers reviewing the SPBT3.0DP2 datasheet, SPBT3.0DP2 pinout, SPBT3.0DP2 application, or SPBT3.0DP2 equivalent, key selection considerations include iAP2 protocol compliance, dual-mode SPP/HID coexistence, GPIO-configurable I/O (8 pins), factory-qualified Bluetooth SIG listing, and AT command–driven configuration without host-side stack development.

Technical Context

The SPBT3.0DP2 integrates a Bluetooth BR/EDR baseband controller and 2.4 GHz transceiver with on-module antenna matching. Its DP firmware implements full SPP client/server, HID keyboard/mouse roles, and Apple's iAP2 protocol-including MFi Co-Processor handshake verification via CpTest command-enabling certified iOS accessory functionality without external authentication ICs.

It supports dynamic power management: DSM (deep sleep mode) draws <10 µA, active status mode enables real-time AT command processing, and sniff mode reduces current during idle SPP links. UART interface uses configurable baud rates (300–2 Mbps), with non-volatile storage for default settings including local name, bond table (100 entries), and auto-reconnect parameters.

Key Specifications

Pinout & Package

SPBT3.0DP2 uses a 24-pin LCC (Leadless Chip Carrier) package measuring 13.0 mm × 11.5 mm × 2.2 mm, with exposed thermal pad and castellated edges for surface-mount soldering. Pin numbering follows standard counter-clockwise layout starting from top-left corner (Pin 1 marked).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Bluetooth 3.0 embedded module applications.

Compared with SPBT3.0DP1, SPBT3.0DP2 reduces board area by 22% and simplifies layout with fewer GPIOs, while retaining full iAP2/SPP/HID feature parity; versus BLUENRG-M2SP, it provides mandatory BR/EDR and iAP2 support required for MFi program compliance-neither alternative matches its certified iOS accessory role.

Availability

SPBT3.0DP2 is available at Aetrix Electronics and suitable for wireless medical devices, iOS accessory development, industrial remote controls, and smart home gateways requiring stable component supply and long-term lifecycle assurance.

Supply support for SPBT3.0DP2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, MEMS, and wireless solutions for industrial, automotive, and consumer markets.

The SPBT3.0DPx series belongs to ST's certified Bluetooth module product line, engineered specifically to accelerate development of MFi-compliant accessories by embedding fully qualified SPP, HID, and iAP2 protocol stacks in compact, ready-to-integrate modules.

FAQ

Does SPBT3.0DP2 require an external MFi authentication chip?

No. The SPBT3.0DP2 embeds full iAP2 protocol handling-including CpTest command verification, secure session key exchange, and app launch coordination-eliminating need for discrete MFi co-processors. It has passed Apple's MFi accessory certification requirements as a standalone module with QDID 57937.

Can SPBT3.0DP2 operate in both SPP and HID modes simultaneously?

Yes. The DP firmware supports concurrent SPP and HID connections-for example, transmitting telemetry data over SPP while sending keyboard events via HID. This is confirmed in UM2077 Section 2: "An HID connection can co-exist with SPP, or iAP2 connection." No host-side multiplexing logic is required.

What is the maximum number of bonded devices supported?

The SPBT3.0DP2 maintains a bond table storing up to 100 paired devices in non-volatile memory. When the table fills, the oldest entry is overwritten-verified in UM2077 Section 3.4: "The first device after the hundredth overwrites the oldest one on the list."

How does deep sleep mode affect UART communication recovery?

In Deep Sleep Mode (DSM), the module draws <10 µA and halts UART reception. Waking requires either RESET_N assertion or GPIO wake event (if configured). After wake-up, UART resumes at previously configured baud rate; no re-initialization or AT command sequence is needed-confirmed in UM2077 Section 2.