Bluetooth smart locks use advanced wireless technology to deliver a secure and efficient access control solution. With Bluetooth connectivity, users can effortlessly unlock doors via smartphone apps or custom password, enabling a keyless, smart lifestyle. The low-power, stable Bluetooth connection ensures fast response within short distances, while enhancing data security to prevent unauthorized access. Easy to install without complex wiring, it is the perfect upgrade for homes and commercial spaces.
Realtek's Bluetooth chip series provides comprehensive support for smart locks, catering to diverse needs from entry-level to high-end models. Its ultra-low power consumption extends battery life, while robust Bluetooth connectivity ensures a seamless user experience. Realtek offers mature development kits and detailed technical documentation, accelerating product development, testing, and mass production. From solution selection to certification support, we provide end-to-end expertise to help customers bring competitive products to market quickly.
System Structure
The RTL8762EMF chip is specifically designed for smart locks, providing Bluetooth data passthrough functionality to enable wireless communication between devices.
The RTL8762CKF/RTL8762DKF-VS are dedicated control chips for smart locks, primarily responsible for connecting and managing various peripheral modules to implement basic lock functions. These low-power, fast-response chips do not support security features like fingerprint recognition and must be paired with a dedicated security chip to form a complete smart lock solution.
RTL8772GWF & RTL8762GKH are Bluetooth SoC Solutions optimized for smart locks.
RTL8772GWF features a Real-M300V 125MHz MCU (Cortex-M55 compatible) with ample SRAM resources to support fingerprint algorithm processing. It integrates hardware-level security mechanisms like Trust Zone and has obtained PSA-L2 certification, providing financial grade security for smart door lock applications. The QFN88 package offers up to 56 general purpose GPIOs, supporting rich peripheral interfaces through pin multiplexing, making it suitable as a single-chip solution for smart door locks.
RTL8762GKH also provides sufficient computing power for fingerprint algorithms while maintaining PSA-L2 security level. Its compact QFN48 package is designed for main control solutions requiring fewer peripheral interfaces.
Realtek partners with financial grade security solution providers to deliver complete security solutions from chip to system level, accelerating smart door lock product development and deployment.
Advantages of Solution
Realtek's chip series delivers outstanding low-power performance, enabling smart locks to operate reliably over extended periods while maintaining stable functionality.
Realtek's Bluetooth technology ensures a stable connection between the lock and paired devices, delivering rapid response at short range, enhancing both user experience and security.
Whether for entry-level or high-end smart locks, Realtek's chip series provides seamless compatibility, meeting diverse user demands.
Realtek offers well-developed SDKs and detailed technical documentation, helping customers streamline functional development, testing, and mass production, reducing time to market.
From solution selection to certification services, Realtek ensures fast and high-quality support at every stage, empowering customers to succeed.
Start implementing my smart lock application
Feature Definition: Identify core functionalities such as Bluetooth unlocking, PIN code access, remote control, security alarms, etc.
User Needs: Consider user habits and security requirements to determine the lock's UI and operation methods.
Chip Selection: Refer to the component selection guide to choose a suitable chip that ensures stable connectivity and fast response.
Evaluation Board Purchase: Buy the corresponding evaluation board from online stores for functional assessment and performance testing to verify hardware compatibility.
App Development: Development based on the Common SDK for secondary development to achieve smart lock functions including remote control, user management, and log recording.
Security Integration: Implement advanced encryption and security protocols to ensure data transmission and storage safety.
SDK Download Portal: RTK8762C SDK | RTK8762D SDK | RTK8762E SDK | RTK87x2G SDK
Hardware Integration: Assemble chips, sensors, actuators, and other components into the door lock system.
Software Testing: Conduct comprehensive functional, performance, and security tests to ensure system stability and reliability.
Certification Preparation: Gather required documentation and test reports to apply for certifications (e.g., Bluetooth SIG, security compliance).
Mass Production Setup: Configure and test production lines to ensure quality and consistency in large-scale manufacturing.
| RTL8772GWF | RTL8762GKH | RTL8762CKF | RTL8762DKF-VS | RTL8762EMF | |
|---|---|---|---|---|---|
| MCU | Real-M300V 125MHz | Real-M300V 125MHz | CM4F 40M | CM4F 90M | CM0+ 40M |
| SRAM | 384KB | 384KB | 160KB | 192KB | 104KB |
| Flash | 1MB | 1MB | 512KB | 1MB | 512KB |
| Security | Secure boot Trust Zone PSA-L2 certification | Secure boot Trust Zone PSA-L2 certification | Secure boot | Secure boot | Secure boot |
| DLPS | ~6uA | ~6uA | ~3uA | ~3uA | ~3uA |
| UART | 5 | 5 | 2 | 2 | 1 |
| Max GPIO | 58 | 31 | 34 | 34 | 26 |
| Audio Codec | Mono DAC | Mono DAC | - | - | - |
| Tx Power | 7.5dBm | 7.5dBm | 7.5dBm | 7.5dBm | 7.5dBm |
| Package (mm) | QFN88, 10 x 10 | QFN48, 6x6 | QFN48, 6 x 6 | QFN48, 6x6 | QFN40, 5 x 5 |
