Qualcomm

BC63B239A04-AQK-E4 - Bluetooth v2.1+EDR Class 1 TxRx+MCU, 40-QFN

Teilenummer: BC63B239A04-AQK-E4 ✓ Aktiv
Auf Lager Versand in 1–3 Werktagen
40-QFN Package 2.4 GHz ISM band Speed 6 MB Memory
Ab $7.4 USD / Stück
MOQ: 1 |
Preis aktualisiert: 2026-10-06
Mengenpreise
Menge Stückpreis Gesamt
1 $12.5 $12,50
10 $11.2 $112,00
100 $9.85 $985,00
500 $8.6 $4.300,00
1.000 $7.4 $7.400,00
ℹ️ Alle Preise sind in USD

BC63B239A04-AQK-E4 Übersicht

The Qualcomm (formerly CSR) BC63B239A04-AQK-E4 is a Bluetooth v2.1 + EDR Class 1 radio transceiver integrated with an on-chip microcontroller, housed in a 40-pin QFN package and qualified for the industrial 2.4 GHz ISM band. Headline parameters per the Qualcomm datasheet: 10 dBm maximum RF transmit output power, -90 dBm receive sensitivity, 3 Mbps maximum air-data rate, and integrated 6 MB ROM plus 48 kB RAM on the application side.

A Bluetooth transceiver with MCU is a short-range radio system-on-chip that combines a 2.4 GHz physical-layer radio (Bluetooth core spec v2.1 + EDR) with a microprocessor and embedded memory. In the broader taxonomy it sits under wireless transceiver -> RF transceiver IC -> RF & wireless semiconductor. EDR (Enhanced Data Rate) extends classic Bluetooth's 1 Mbps gross rate to 3 Mbps through PSK modulation, reducing transmission time and therefore quiescent current draw for the same data payload. The integrated MCU removes the need for an external host processor on simple peripherals.

Key features of the BC63B239A04-AQK-E4 include Class 1 transmit power (10 dBm) that delivers approximately 100 m line-of-sight range when paired with an external PA path, -90 dBm sensitivity that preserves link margin in noisy industrial environments, and an embedded 6 MB ROM store that accommodates CSR's BlueCore stack plus a vendor application image. The 48 kB RAM is sufficient for typical HID, SPP, and iAP profile data structures.

Architecturally the device uses CSR's BlueCore6 family baseband with adaptive frequency hopping across 79 Bluetooth channels. Power management is built in, supporting sniff, hold, and park low-power modes that drop average current to sub-mA levels when the link is idle. Antenna interface is single-ended 50 ohm on a dedicated RF pin.

Typical applications include industrial cable replacement modules, medical data loggers, automotive diagnostic bridges, point-of-sale terminals, and audio streaming dongles where the on-chip MCU drives the application without an external host. The QFN-40 land pattern keeps the PCB footprint compact for embedded designs.

A primary design consideration is the requirement for a controlled-impedance RF trace and a chip antenna or external antenna matched to 50 ohms - mismatched antenna networks will degrade both the 10 dBm output and the -90 dBm sensitivity. Firmware must be loaded into the 6 MB ROM during production, which constrains second-source flexibility.

Drop-in-Alternativen für BC63B239A04-AQK-E4 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.

Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:

BC63B239A05-AQK-E4

✅ Drop-In
📦 40-QFN
same BlueCore6 family, upgraded Bluetooth stack v5 profile support, pin-to-pin compatible

📋 Referenzalternative (nicht im Katalog)

BC63B239A05-AQK-E4C

✅ Drop-In
📦 40-QFN
same BlueCore6 family with extended temperature grade, same 40-QFN footprint

📋 Referenzalternative (nicht im Katalog)

BC63B239A04-IQD-E4

✅ Drop-In
📦 40-QFN
IQD firmware variant, same BlueCore6 silicon, identical package

📋 Referenzalternative (nicht im Katalog)

CC2541

✅ Drop-In
📦 40-QFN
BLE 4.0 only (no Classic), 8051 core vs CSR MCU, same 40-QFN but firmware port mandatory

📋 Referenzalternative (nicht im Katalog)

nRF51822

✅ Drop-In
📦 QFN-48
BLE SoC ARM Cortex-M0, 256kB Flash, but 48-QFN vs 40-QFN - not true drop-in (package differs)

📋 Referenzalternative (nicht im Katalog)

BC63B239A04-AQK-E4 Grenzwerte & elektrische Eigenschaften

Manufacturer Qualcomm (formerly CSR)
Funktion RF Transceiver + MCU
Protocol Bluetooth v2.1 + EDR, Class 1
Frequency 2.4 GHz ISM band
Maximum RF Output Power 10 dBm
Receive Sensitivity -90 dBm
Maximum Data Rate 3 Mbps
Memory - ROM 6 MB
Memory - RAM 48 kB
RF Family/Standard Bluetooth
Gehäuse 40-QFN
Montageart Surface Mount
Packaging Tape & Reel (TR)
RoHS-Status Compliant
Product Status Active

BC63B239A04-AQK-E4 40-qfn Pinbelegungsleitfaden

Pinbelegung für BC63B239A04-AQK-E4 (40-qfn-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.

Pinbelegungsdiagramm für BC63B239A04-AQK-E4 im 40-qfn-Gehäuse

Keine detaillierten Pinbelegungsdaten verfügbar für BC63B239A04-AQK-E4.

Siehe die Datenblatt für die vollständige Pin-Konfiguration.

Typische Anwendungen

BC63B239A04-AQK-E4 ist geeignet für 6 Anwendungs: Industrial Cable Replacement, Medical Data Loggers, Automotive Diagnostic Bridges, Point-of-Sale Terminals, Audio Streaming Dongles, iAP Authentication Coprocessor Dongles.

🏭

Industrial Cable Replacement

The BC63B239A04-AQK-E4 is well suited to industrial cable-replacement modules such as RS-232-to-Bluetooth serial adapters used in factory automation and process instrumentation. Its 10 dBm Class 1 transmit power delivers roughly 100 m of line-of-sight range, which is sufficient to bridge PLC panels, HMI terminals, and remote sensor enclosures inside a typical plant floor. The -90 dBm receive sensitivity preserves link margin in electrically noisy environments where 2.4 GHz interference from motors and drives is common, and the integrated 48 kB RAM runs SPP firmware without an external host MCU. Place a 50 ohm controlled-impedance trace from the RF pin to the antenna footprint.

💊

Medical Data Loggers

Portable medical data loggers such as glucose meters, spirometers, and ambulatory monitors leverage the BC63B239A04-AQK-E4's Bluetooth v2.1+EDR SPP profile to push recorded readings to a clinician's tablet or PC. The 6 MB ROM holds both the Bluetooth stack and the device-specific measurement code, eliminating the need for an external application processor and keeping the BOM compact for battery-powered form factors. Sniff and park low-power modes drop the average current draw into the sub-mA range between transmissions, extending battery life on multi-day logging deployments. The -90 dBm sensitivity ensures reliable pairing at typical bedside distances.

🚗

Automotive Diagnostic Bridges

Automotive OBD-II Bluetooth diagnostic bridges use the BC63B239A04-AQK-E4's SPP profile to tunnel CAN/LIN bus traffic to a mechanic's tablet or phone running diagnostic software. The 10 dBm output power maintains a stable link across a workshop floor populated with metal toolboxes and lifts, while the -90 dBm sensitivity tolerates partial obstruction when the technician walks around the vehicle. The 40-QFN surface-mount package is automotive-friendly because it tolerates the high-vibration under-dash environment and supports standard SMT assembly. The 48 kB of RAM is sufficient for CAN frame buffering between the diagnostic application and the Bluetooth radio.

🧩

Point-of-Sale Terminals

Point-of-sale (POS) terminals and mobile payment peripherals integrate the BC63B239A04-AQK-E4 to communicate with receipt printers, cash drawers, and barcode scanners over Bluetooth Classic SPP. The 3 Mbps EDR air-data rate delivers print jobs and barcode streams with low latency, keeping checkout lines moving. The on-chip 48 kB RAM plus 6 MB ROM run a lightweight POS state machine without a host application processor, simplifying certification. The Class 1 +10 dBm output links reliably through checkout-counter metal enclosures where a Class 2 radio would struggle.

🎧

Audio Streaming Dongles

Wireless audio adapters that stream A2DP from a TV or PC to Bluetooth speakers or headphones leverage the BC63B239A04-AQK-E4's 3 Mbps EDR throughput, which is adequate for sub-bandband SBC and early AAC codecs. The 10 dBm output maintains a stable link across a typical living-room distance even through drywall, and the 6 MB ROM holds the codec plus the A2DP/AVRCP profile stack without an external DSP. The integrated MCU manages the audio routing and on-device buttons for play/pause/skip. Power consumption is the dominant design constraint - budget for a Class 1 capable regulator and thermal relief.

📱

iAP Authentication Coprocessor Dongles

Made-for-iPhone/iPad (MFi) accessory dongles use the BC63B239A04-AQK-E4 as an iAP coprocessor that authenticates against Apple's Lightning or 30-pin host via Bluetooth. The 6 MB ROM accommodates the iAP authentication stack alongside the Bluetooth stack, and the integrated MCU runs the MFi protocol state machine without external logic. The -90 dBm receive sensitivity preserves the link in pocket-and-bag scenarios where accessory signal attenuation is significant. The 40-QFN footprint keeps the dongle PCB small enough for compact MFi accessory form factors.

Zusammenfassung der empfohlenen Produkte

STM32F103C8T6 STMicroelectronics Verwendet in: Industrial Cable Replacement, Industrial Cable Replacement MAX3232ESE RS-232 line driver for SPP cable-replacement design Verwendet in: Industrial Cable Replacement ADS1292RIPBS Texas Instruments Verwendet in: Medical Data Loggers TPS7A4701RGWR Texas Instruments Verwendet in: Medical Data Loggers, Medical Data Loggers MCP2515-I/SO Standalone CAN controller for OBD-II link Verwendet in: Automotive Diagnostic Bridges TJA1050T High-speed CAN transceiver for vehicle bus Verwendet in: Automotive Diagnostic Bridges MAX485ESA RS-485 line driver for legacy POS peripherals Verwendet in: Point-of-Sale Terminals AT24C256C-SSHL-T EEPROM for transaction log storage Verwendet in: Point-of-Sale Terminals TDA7498ETR Class-D audio amplifier for powered speakers Verwendet in: Audio Streaming Dongles PCM5101APWR DAC for line-level audio output path Verwendet in: Audio Streaming Dongles ATECC608B-SSHDA-T Microchip Technology Verwendet in: iAP Authentication Coprocessor Dongles STM32L073RZT6 STMicroelectronics Verwendet in: iAP Authentication Coprocessor Dongles
What protocol and RF class does the BC63B239A04-AQK-E4 support?
The BC63B239A04-AQK-E4 supports Bluetooth v2.1 + EDR (Enhanced Data Rate) at Class 1 transmit power. According to the Qualcomm datasheet summary on DigiKey, it operates in the 2.4 GHz ISM band with a maximum air-data rate of 3 Mbps. Class 1 designates +10 dBm maximum output, which is the highest Bluetooth power class and requires the longest range budget.
What is the maximum output power and receive sensitivity of the BC63B239A04-AQK-E4?
The BC63B239A04-AQK-E4 delivers a maximum RF output power of 10 dBm and a receive sensitivity of -90 dBm, per the GlobalSpec datasheet digest. This combination yields approximately 100 dB of total link budget in free space, which translates to roughly 100 m line-of-sight range when paired with a properly matched 50 ohm antenna network and an unobstructed 2.4 GHz propagation path.
How much memory is integrated in the BC63B239A04-AQK-E4?
The BC63B239A04-AQK-E4 integrates 6 MB of ROM and 48 kB of RAM on-chip, according to the manufacturer datasheet. The 6 MB ROM holds the BlueCore Bluetooth protocol stack plus customer application firmware; the 48 kB RAM is shared between the link controller and the application MCU and is sufficient for HID, SPP, and iAP profile implementations.
Where can I buy the BC63B239A04-AQK-E4 online?
The BC63B239A04-AQK-E4 is in stock at DigiKey (datasheet URL: digikey.com/en/products/detail/qualcomm/BC63B239A04-AQK-E4/2116643), with the DigiKey listing noting same-day shipping availability. It is also offered by JLCPCB, Win Source, YIC Electronics, and other authorized distributors listed in the data sources. Pricing scales from approximately USD 12.50 unit price at qty 1 down to USD 7.40 at qty 1000 as of 2026-10-07.
What is the typical lead time for BC63B239A04-AQK-E4 orders?
Lead time for the BC63B239A04-AQK-E4 is generally 8-12 weeks when ordered factory-fresh, as the part is supplied via distributor stocking channels. The DigiKey product page (datasheet URL: digikey.com/en/products/detail/qualcomm/BC63B239A04-AQK-E4/2116643) typically indicates immediate availability for small orders. For high-volume production, contact an authorized Qualcomm distributor for a current factory lead time.
What is the price of BC63B239A04-AQK-E4 in 1000-piece quantity?
The 1000-piece unit price for the BC63B239A04-AQK-E4 is approximately USD 7.40 as of 2026-10-07, based on distributor pricing captured in the research commons. At 100 pieces the unit price is about USD 9.85, and at 1 piece approximately USD 12.50. Volume discounts scale through additional breakpoints per the manufacturer price book; OEM pricing is negotiable directly with Qualcomm for production commitments.
Is the BC63B239A04-AQK-E4 in stock at major distributors?
Yes, the BC63B239A04-AQK-E4 is listed as in stock at DigiKey with same-day shipping available, per the official DigiKey product page. Secondary distributors including JLCPCB, Win Source, and YIC Electronics also list current inventory. For real-time stock across all authorized channels, check the data sources section of this page or contact a Qualcomm authorized representative directly.
BC63B239A04-AQK-E4 vs TI CC2541 - which is better for a BLE HID keyboard?
For a Bluetooth Low Energy HID keyboard, the TI CC2541 is generally a better fit because the BC63B239A04-AQK-E4 is a Bluetooth v2.1 + EDR classic-radio device, not a BLE SoC. The CC2541 supports BLE 4.0, which modern OS stacks require for HID-over-GATT peripherals. Choose the BC63B239A04-AQK-E4 instead when you need SPP, iAP, or audio profiles, or when you must talk to a classic-Bluetooth-only host.
BC63B239A04-AQK-E4 vs Nordic nRF51822 - which should I choose for a sensor tag?
For a low-power sensor tag design, the Nordic nRF51822 is typically the better choice because it is an ARM Cortex-M0 BLE SoC with deeper sleep currents than the BC63B239A04-AQK-E4. The BC63B239A04-AQK-E4 targets classic Bluetooth v2.1+EDR profiles and is better suited to industrial cable-replacement and audio-streaming use cases. Pick the BC63B239A04-AQK-E4 when the host requires SPP throughput or iAP authentication.
When should I choose the BC63B239A04-AQK-E4 over a modern BLE SoC?
Choose the BC63B239A04-AQK-E4 when the host device requires Bluetooth Classic profiles such as SPP (serial port profile), iAP (Apple Authentication coprocessor), A2DP audio streaming, or HID classic mode. Modern BLE-only SoCs cannot bridge these profiles. The 10 dBm Class 1 output also favors it for industrial cable-replacement links where the higher link budget beats BLE SoC sensitivity for long-range metal-rich enclosures.
What is the best drop-in replacement for the BC63B239A04-AQK-E4?
The closest drop-in compatible part in the same Qualcomm/CSR BlueCore family is the BC63B239A05-AQK-E4, which upgrades to the v5 stack variant while preserving the 40-QFN land pattern and pinout. For a cross-brand replacement, the TI CC2541 in QFN-40 is the most commonly cited substitute but requires firmware re-development because the host interface and stack differ. Always re-spin the matching network and PCB antenna footprint when changing silicon.
Can a TI CC2541 replace the BC63B239A04-AQK-E4 on the same PCB?
Not as a true drop-in - the TI CC2541 is a BLE-only SoC while the BC63B239A04-AQK-E4 is a Bluetooth Classic v2.1+EDR device. Both come in 40-QFN packages of similar dimensions, but pin assignments differ, the host interface changes from UART/USB to I2C/SPI, and the firmware stack is incompatible. Treat CC2541 as a functional replacement requiring PCB rework, firmware port, and re-qualification.
Where to download BC63B239A04-AQK-E4 datasheet PDF?
The BC63B239A04-AQK-E4 datasheet is available from the GlobalSpec datasheet directory at datasheets.globalspec.com/ds/qualcomm/bc63b239a04-aqk-e4/ad52336a-599e-4dad-a808-4f40c819f1dc. The same document is mirrored on DigChip (digchip.com) and Datasheets.com. For the original manufacturer PDF, contact a Qualcomm representative or an authorized distributor such as DigiKey, which hosts the product detail page at the datasheet_url above.
Where can I find the BC63B239A04-AQK-E4 pinout and package diagram?
The BC63B239A04-AQK-E4 pinout is published in the Qualcomm (CSR) datasheet available through GlobalSpec, DigChip, and the DigiKey product detail page. The device is supplied in a 40-pin QFN package, with the exposed pad acting as the RF ground reference. The dedicated RF pin routes to a 50 ohm controlled-impedance trace that terminates at the chip or PCB antenna footprint.
What are the key specifications of the BC63B239A04-AQK-E4 that engineers should know?
Engineers integrating the BC63B239A04-AQK-E4 should focus on six headline specifications: Bluetooth v2.1 + EDR protocol, Class 1 transmit power of 10 dBm maximum, receive sensitivity of -90 dBm, maximum air-data rate of 3 Mbps, integrated 6 MB ROM and 48 kB RAM, and a 40-pin QFN surface-mount package. These six parameters determine link range, host compatibility, throughput, code-storage headroom, and PCB footprint respectively.

Technische Referenzdaten für BC63B239A04-AQK-E4 – Vergleich, Designhinweise und Compliance-Informationen.

Auswahlhilfe

Choose the BC63B239A04-AQK-E4 when the design requires Bluetooth Classic v2.1+EDR profiles (SPP, iAP, A2DP, HID classic) plus an integrated MCU that runs standalone without a host processor. It is the right pick for industrial cable replacement, automotive OBD-II bridges, POS peripherals, MFi authentication dongles, and A2DP audio adapters. If the design is BLE-only (modern HID-over-GATT, BLE sensors, BLE beacons), pick a TI CC2541 or Nordic nRF51822 instead. For a drop-in upgrade within the same BlueCore family, the BC63B239A05-AQK-E4 keeps the same 40-QFN footprint and pinout while updating the stack profile.

Vergleich mit Alternativen

Parameter Dieses Produkt BC63B239A05-AQK-E4 BC63B239A05-AQK-E4C BC63B239A04-IQD-E4 CC2541 nRF51822
Package 40-QFN 40-QFN (same) 40-QFN (same) 40-QFN (same) 40-QFN (same) QFN-48 (differs)
Brand Qualcomm (CSR) Qualcomm Qualcomm Qualcomm Texas Instruments Nordic Semiconductor
Protocol Bluetooth v2.1 + EDR, Class 1 Bluetooth v2.1 + EDR, Class 1 (stack v5) Bluetooth v2.1 + EDR, Class 1 Bluetooth v2.1 + EDR, Class 1 BLE 4.0 only BLE 4.2 only
Max Output Power 10 dBm 10 dBm 10 dBm 10 dBm 0 dBm 4 dBm
Receive Sensitivity -90 dBm -90 dBm -90 dBm -90 dBm -94 dBm -93 dBm
Max Data Rate 3 Mbps 3 Mbps 3 Mbps 3 Mbps 1 Mbps (BLE) 1 Mbps (BLE)
Integrated Memory 6 MB ROM / 48 kB RAM 6 MB ROM / 48 kB RAM 6 MB ROM / 48 kB RAM 6 MB ROM / 48 kB RAM 128/256 kB Flash / 8 kB RAM 256 kB Flash / 16 kB RAM
Function TxRx + MCU (Classic BT) TxRx + MCU (Classic BT) TxRx + MCU (Classic BT) TxRx + MCU (Classic BT) TxRx + MCU (BLE SoC, 8051) TxRx + MCU (BLE SoC, Cortex-M0)

Wichtigste Unterscheidungsmerkmale

  • Bluetooth Classic v2.1+EDR Class 1 support that BLE-only SoCs cannot provide (vs. CC2541)
  • On-chip MCU eliminates external host processor for simple peripherals (vs. nRF51822)
  • 10 dBm transmit power delivers the highest Bluetooth link budget in this class (vs. CC2541)

Designhinweise

The BC63B239A04-AQK-E4 RF pin must connect to a controlled-impedance (50 ohm nominal) microstrip or stripline trace that terminates at the antenna footprint. Use a ground cutout beneath the RF trace per the manufacturer reference layout, and stitch the ground plane with vias on both sides of the trace. Mismatched impedance will degrade both the 10 dBm output and the -90 dBm receive sensitivity, shrinking usable range by tens of percent.

Provide a clean 1.8 V rail to the BC63B239A04-AQK-E4 with at least 100 mA peak headroom for Class 1 transmit bursts. Place a 10 uF ceramic bulk capacitor plus a 0.1 uF decoupling cap within 3 mm of the supply pins. Estimated: a 10 dBm transmit burst at 50 mA average current produces a sub-mV ripple if the regulator is a low-noise LDO; do not power this rail from a noisy buck converter without an LDO post-regulator.

Do not substitute a generic 50 ohm chip antenna without re-tuning the matching network for the BC63B239A04-AQK-E4 PCB stack-up. Antenna return loss must be measured with a vector network analyzer on the production PCB; simulation alone is insufficient at 2.4 GHz. Also, firmware must be loaded into the 6 MB ROM during production programming - field upgrades require the vendor's DFU mechanism and signed images, otherwise the stack will reject the image.

Compliance-Informationen

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Bleifrei
Yes
Halogenfrei
Unknown
Konfliktmineralien
Unknown

RoHS compliant per JLCPCB product listing. REACH, AEC-Q100, halogen-free, and conflict-minerals status not stated explicitly in the verified web data and require direct confirmation from Qualcomm.

Daten verifiziert am: 2026-10-07 – Daten geprüft und kuratiert vom Bauteil-Engineering-Team von XAIPART

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Verwandte Bauteile & Begriffe

Qualcomm CSR BC63B239A04-AQK-E4 BC63B239A05-AQK-E4 BC63B239A05-AQK-E4C BC63B239A04-IQD-E4 CC2541 nRF51822 Bluetooth v2.1 + EDR Class 1 Bluetooth Bluetooth transceiver RF transceiver IC 2.4 GHz ISM band QFN-40 EDR (Enhanced Data Rate) SPP profile iAP authentication A2DP audio profile RoHS BlueCore6
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