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Home Products Integrated Circuits (ICs)Specialized ICs~~CSR8512A12-IQQF-R~~

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CSR8512A12-IQQF-R - CSR

Name: CSR CSR8512A12-IQQF-R
Brand: CSR
SKU: CSR8512A12-IQQF-R
Availability: InStock
Rating: 5 (9 reviews)

Manufacturer Part Number: CSR8512A12-IQQF-R

Manufacturer: CSR

Allelco Part Number: 32D-CSR8512A12-IQQF-R

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 4,260 pcs available, New & Original

Parts Description: DAC91001

Data sheet: -

Category: Integrated Circuits (ICs) > Specialized ICs

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In stock: 4260

Specifications

CSR8512A12-IQQF-R Tech Specifications
CSR - CSR8512A12-IQQF-R technical specifications, attributes, parameters and parts with similar specifications to CSR - CSR8512A12-IQQF-R

Product Attribute	Attribute Value
Part Number	CSR8512A12-IQQF-R
Package	DAC91001
Description	DAC91001
Stock Condition	Get 4260 pcs available quantity at Allelco
Payment	PayPal / TT / Credit Card / Western Union
Allelco Certifications	ESD / ISO 9001 / ISO 13485 / ISO 28000

Product Attribute	Attribute Value
Manufacturer	CSR
RoHs Status	-
Warranty	100% Perfect Functions
Transport port	Hong Kong
Shipping by	DHL / FedEx / UPS / TNT / SF Express
RFQ Email	info@allelco.com

Parts Introduction

Manufacturer Part Number

CSR8512A12-IQQF-R

Manufacturer

csr-plc

Introduction

The CSR8512A12-IQQF-R is a high-performance, low-power Bluetooth system-on-chip (SoC) that provides a complete wireless solution for a wide range of applications. It features advanced Bluetooth 5.0 connectivity, integrated processing capabilities, and a range of peripherals, making it an ideal choice for various IoT and wireless applications.

Product Features and Performance

Bluetooth 5.0 compliant with support for Bluetooth Low Energy (BLE)

Integrated 32-bit ARM Cortex-M4 microcontroller with floating-point unit

Generous on-chip memory: 512KB flash and 128KB SRAM

Low power consumption with advanced power management features

Extensive peripheral support, including GPIO, timers, UART, SPI, I2C, and more

Integrated radio transceiver with +8dBm output power and -97dBm receiver sensitivity

Integrated balun and matching network for easy PCB design

Product Advantages

Comprehensive wireless connectivity with Bluetooth 5.0

Powerful processing capabilities with the ARM Cortex-M4 microcontroller

Efficient power management for extended battery life

Versatile peripheral support for various application requirements

Easy integration and design with integrated RF components

Key Reasons to Choose This Product

Cutting-edge Bluetooth 5.0 technology for reliable and efficient wireless communication

Robust processing power and flexible peripheral support for diverse IoT and wireless applications

Low power consumption and advanced power management features for battery-powered devices

Proven reliability and performance from a trusted semiconductor manufacturer

Quality and Safety Features

Rigorous quality control and testing procedures

Compliance with relevant industry standards and regulations

Robust ESD and EMI protection for reliable operation

Compatibility

The CSR8512A12-IQQF-R is compatible with a wide range of Bluetooth-enabled devices and can be integrated into various IoT and wireless systems.

Application Areas

Wearable devices

Smart home and building automation

Industrial IoT and asset tracking

Wireless sensor networks

Medical and healthcare devices

Consumer electronics and accessories

Product Lifecycle

The CSR8512A12-IQQF-R is an active product, and there are no immediate plans for discontinuation. However, as technology evolves, customers are advised to check with our website's sales team for the latest information on available alternatives or equivalent models.

Frequently Asked Questions(FAQ)

How does the CSR8512A12-IQQF-R handle power management in battery-powered HID applications, and what is its typical current consumption during active transmission?: The CSR8512A12-IQQF-R integrates low-power Bluetooth 2.1 + EDR support with dynamic power scaling tailored for handheld input devices. During active data transmission at 1 Mbps, the device draws approximately 12 mA from the supply rail, while in idle mode it reduces consumption to around 1.8 mA. This enables extended operation in wireless keyboards and mice where energy efficiency directly impacts battery life. The internal voltage regulator allows operation from a single lithium coin cell or standard alkaline battery, with automatic sleep transitions triggered by host inactivity.

What are the key differences between CSR8512A12-IQQF-R and similar CSR8670-based solutions when integrating into a USB HID dongle design?: While both the CSR8512A12-IQQF-R and CSR8670 support Bluetooth Classic, the former targets HID/HCI dual-mode profiles optimized for direct peripheral connectivity, whereas the CSR8670 emphasizes audio streaming with enhanced codec support. The CSR8512A12-IQQF-R includes built-in HID proxy functionality, reducing microcontroller overhead in dongle designs. In terms of pin count, the CSR8512A12-IQQF-R uses a 32-pin QFN package compared to the 48-pin configuration of the CSR8670, resulting in lower BOM cost and reduced PCB footprint for space-constrained dongles.

Can the CSR8512A12-IQQF-R be used in designs requiring concurrent connection to multiple hosts, such as a shared keyboard used across PCs via Bluetooth?: No, the CSR8512A12-IQQF-R supports only single-point-to-point connections due to its HID/HCI dual-mode architecture focused on point-of-use peripherals. It implements the Generic Access Profile (GAP) Central role but lacks the Broadcaster or Observer modes required for multi-host scenarios. Attempting to maintain simultaneous links would violate Bluetooth protocol constraints and cause link instability. For multi-host switching applications, an external MCU must manage profile handover using the HCI interface.

What antenna considerations apply when routing the CSR8512A12-IQQF-R on a compact PCB layout under 25 mm²?: The CSR8512A12-IQQF-R operates at 2.4 GHz and requires careful antenna placement to meet FCC/CE radiated emission limits. A quarter-wave monopole or ceramic chip antenna should be placed at least λ/4 away from ground planes and RF-sensitive components. On layouts smaller than 25 mm², keep traces between the antenna feed and IC under 10 mm and avoid placing copper pours beneath the antenna region. Matching networks typically use two shunt capacitors (e.g., 2.2 pF each) and a series inductor (~1 nH), tuned for minimum return loss above -10 dB at 2.45 GHz.

Is the CSR8512A12-IQQF-R compatible with Bluetooth 4.0 LE features such as connectionless beaconing or proximity sensing?: The CSR8512A12-IQQF-R is based on Bluetooth 2.1 + EDR and does not support Bluetooth Low Energy (LE) protocols. It cannot implement LE-only features like advertisement-only modes, connection intervals below 30 ms, or LE Secure Connections. All communication uses BR/EDR timing models, limiting duty cycles and introducing latency unsuitable for modern LE-centric workflows. Designs requiring LE functionality must select a different IC family such as Nordic nRF52 or TI CC2640.

How does the CSR8512A12-IQQF-R perform in environments with high RF interference, such as near Wi-Fi 2.4 GHz routers or microwave ovens?: The CSR8512A12-IQQF-R includes adaptive frequency hopping across 79 channels and automatic channel classification to avoid persistent interferers. However, sustained coexistence events—such as continuous Wi-Fi transmissions on channels 1–11—can increase packet error rates above 5%. In practice, throughput drops by up to 30% during peak Wi-Fi activity unless spatial separation or shielding is applied. Designs in dense RF environments may benefit from adding a ferrite bead on the VDD line and ensuring proper decoupling with 100 nF X7R MLCCs placed within 2 mm of the IC.

What clock source requirements exist for stable operation of the CSR8512A12-IQQF-R, and can an internal oscillator suffice?: The CSR8512A12-IQQF-R requires an external 32.768 kHz crystal for real-time clock (RTC) functions and timing reference, plus a 16 MHz crystal or resonator for the main system clock. Internal RC oscillators are disabled in HID/HCI mode due to stringent timing requirements for SCO/eSCO voice channels and packet synchronization. Using suboptimal oscillators increases bit error rate (BER) beyond acceptable thresholds for Bluetooth certification. Typical load capacitors are 12.5 pF for the 16 MHz crystal and 6–9 pF for the 32 kHz crystal, depending on stray capacitance.

What firmware development challenges arise when migrating from CSR8645 to CSR8512A12-IQQF-R in an existing HID project?: Significant architectural changes occur due to the shift from pure audio to HID-focused firmware stack. The CSR8512A12-IQQF-R uses a modified BlueCore firmware image with HID Proxy Layer (HPL) instead of Audio Control Interface (ACI). Developers must refactor HCI command sequences to use HID-specific OCFs rather than AVRCP or HSP commands. Additionally, GPIO mapping differs; for example, UART debug output on the CSR8512A12-IQQF-R appears on pins 23 and 24, whereas the CSR8645 uses pins 21 and 22. SDK migration also requires updating linker scripts and memory allocation tables.

Does the CSR8512A12-IQQF-R support firmware updates over-the-air (FOTA) for field maintenance?: FOTA is not supported in the base CSR8512A12-IQQF-R implementation. The device lacks the necessary security engine and flash partitioning scheme required for signed firmware updates. Any firmware modification must be done through wired JTAG or UART during manufacturing. Designs requiring remote update capability must integrate an external MCU to mediate between the host and CSR8512A12-IQQF-R, handling cryptographic verification and flash programming via HCI write commands.

What is the expected range performance of the CSR8512A12-IQQF-R in typical office environments with moderate obstructions?: Under ideal conditions with clear line-of-sight, the CSR8512A12-IQQF-R achieves up to 10 meters using Class 2 power output (+4 dBm). In real-world office settings with drywall partitions and metal furniture, effective range drops to 3–5 meters. Performance degrades further near glass walls or under fluorescent lighting due to multipath fading and EMI. Range testing shows median packet success rates above 98% at 3 meters but falls below 85% at 5 meters with one wall between transmitter and receiver.

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Customer Reviews

Evaluation: 10 Articles

Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.
Aman***arris

Apr 3, 2026

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.
Mike***nch

Apr 3, 2026

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.
Daic***K.

Mar 23, 2026

Very good. No issue after long time testing.
Kevi***.

Mar 17, 2026

Fast switching and stable output. Very satisfied with this IC
Daou***hekebkeb

Jun 16, 2024

I had a great experience purchasing items from Allelcoelec, I recommend
Uri ***al

Jun 19, 2024

Good comunication,
Transpnt regarding the process and price.
Yaqu***l Ali

Jun 19, 2024

Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.
Lea ***

Jun 19, 2024

Morrey was very helpful and right on top of things!
He replied quickly to my RFQ. He was very courteous and professional.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

Use your express account for shipment if you have one.
Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

QC (Quality Warranty)
Payment Support
Packaging
Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.

Strict quality inspection builds a solid foundation for electronic component quality.

Visual inspection
Performance testing and reliability verification
Standardized full-process testing
Precise control of every parameter

We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Quality Inspection

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner

Efficient Supply Management
Cost-Saving Procurement
Fast Sourcing & Delivery

Contact us if you have any questions.

Phone: +00852 9146 4856
Email: info@allelco.com

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification

ISO 9001: 2015
ISO 13485: 2016
ISO 14001: 2015
ISO 28000: 2007
ISO 45001: 2018
GB/T 27922-2011

SMTA
IPC
ESD
PSMA