RTL8720F-Realtek IoT | Wi-Fi SoC
Realtek Ameba IoT Chip Selection
Ameba IoT wireless solutions, featuring high integration, stable performance, low power consumption, and enhanced security
Highlights
Integrating various security features including Arm TrustZone®, TRNG, asymmetric encryption, HUK, OTP storage, Flash XIP decryption, etc., it provides security protection for customer's products.
Incorporating advanced technologies such as OFDMA, MU-MIMO, TWT and Extended Range, it effectively alleviates wireless resource congestion, enhances weak signal coverage, significantly improves transmission quality, reduces latency, and extends the battery life of IoT devices
Multi-hop and multi-branch intelligent networking, significantly extending the AP connection range; underlying layer forwarding and control, transparent to application layer development, eliminating traditional Mesh adaptation constraints; rapid fault self-healing, ultra-low latency, and ultra-high stability, comprehensively breaking through traditional Mesh performance bottlenecks
System Architecture
- Armv8.1-M Architecture
- Arm Cortex®-M55 ISA compatible
- Up to 320MHz, 3-stage pipeline
- 16KB I-Cache
- 16KB D-Cache
- Arm TrustZone®-M
- Armv8.1-M Architecture
- Arm Cortex®-M55 ISA compatible
- Up to 320MHz, 3-stage pipeline
- 16KB I-Cache
- 16KB D-Cache
- 512KB SRAM
- QSPI NOR Flash: Up to 104MHz
- DQ8/DQ16 DDR PSRAM: Up to 200MHz
Part Number
| Part number | RTL8720FBF-VA2-CG | RTL8720FBM-VA2-CG | RTL8720FBM-VR3-CG |
|---|---|---|---|
| Real-M300 (KM4TZ) | 320MHz | 320MHz | 320MHz |
| Real-M300 (KM4NS) | 320MHz | 320MHz | 320MHz |
| On-chip SRAM | 512KB | 512KB | 512KB |
| Arm TrustZone | |||
| NOR Flash | 4MB | ||
| PSRAM | 4MB | 8MB | |
| Wi-Fi | Wi-Fi 6 (2.4GHz) | Wi-Fi 6 (2.4GHz) | Wi-Fi 6 (2.4GHz) |
| Bluetooth | LE | LE | LE |
| Operating voltage | 2.97V ~ 3.63V | 2.97V ~ 3.63V | 2.97V ~ 3.63V |
| Operating temperature | -40°C ~ 105°C | -40°C ~ 105°C | -40°C ~ 105°C |
| Package (mm) | QFN40 (5 x 5) | QFN40 (5 x 5) | QFN40 (5 x 5) |
Peripheral Interfaces
| FUNCTION | RTL8720FBF | RTL8720FBM |
|---|---|---|
| GPIO | ||
| SPI | ||
| UART | ||
| I2C | ||
| I2S | ||
| ADC | ||
| Infrared Transeiver | ||
| SWD Interface | ||
| General Timer | ||
| Capture Timer | ||
| RTC | ||
| PWM | ||
| SDIO_DEVICE | ||
| IWDG | ||
| System WDG | ||
| GDMA | ||
| Thermal |
Security Features
We consistently prioritize security as the core of our products, offering our customers a rich array of security features through hardware design and providing exceptional hardware-based attack resistance, helping to create IoT products with ultimate security.
| Features | Filter | RTL8721Dx | RTL8720E | RTL8710E | RTL8726E | RTL8713E | RTL8730E | RTL8721F | RTL8720F | RTL872xD | RTL8735B |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AES Hardware Engine | |||||||||||
| SHA Hardware Engine | |||||||||||
| ECDSA/ECDH Hardware Engine | |||||||||||
| EDDSA Hardware Engine | |||||||||||
| RSA Hardware Engine | |||||||||||
| Secure Boot | |||||||||||
| Flash OTF Decryption | |||||||||||
| Arm TrustZone | |||||||||||
| OTP Secure Storage | |||||||||||
| True Random Number Generator | |||||||||||
| HUK Derivation Mechanism | |||||||||||
| Authenticated Debug Access |
In addition to the essential symmetric encryption engines like AES for IoT, we also provide computationally more intensive asymmetric encryption algorithms ECDSA. This greatly alleviates the computational burden on the CPU and improves encryption and decryption speeds
Based on asymmetric encryption and digital signature mechanisms, it verifies public key hashes and firmware signatures. This process can prevent tampering and rollback attacks, ensuring that the device only runs trusted firmware
Supports both embedded and external Flash, with independent key encryption for multiple firmware. When the CPU executes encrypted firmware, it is decrypted in real-time by hardware, with nearly imperceptible performance impact. Supports unique encryption for each device, preventing injection and cloning attacks
Based on the Arm TrustZone® architecture, coupled with a dedicated hardware access control unit, it achieves strong isolation protection for secure memory areas and secure peripherals. Meanwhile, secure firmware is decrypted by the security encryption engine and loaded into the secure RAM area, ensuring protection against leakage and tampering throughout the entire process
Physical-level anti-extraction, key area locked for access only by the security engine, tamper-resistant and read-proof. Supports independent secure zones and CRC verification
Generates high-security random numbers based on physical entropy sources. Certified by NIST for randomness. Provides unpredictability to the system, resistant to prediction attacks
Hardware Unique Key (HUK) with physical isolation protection, unreadable and unclonable, used for secure derivation of application keys
Strict control over debug interface access through authentication mechanisms. Supports authorized access and permanent closure, eliminating physical debug attacks. Meets security management requirements at different stages of the product lifecycle, effectively enhancing overall security
Security Certifications Support
We offer support for multiple security certifications. By providing these advanced security features and certification support, we aim to assist our customers in efficiently meeting various market entry requirements, ensuring the security and competitiveness of their products. Most of our chips are capable of achieving PSA Certified Level 2 and Level 3, with some chips already having completed PSA Certified Level 2 certification.
Wireless Connectivity
Wi-Fi Feature List
| Features | Filter | RTL8721Dx | RTL8720E | RTL8710E | RTL8726E | RTL8713E | RTL8730E | RTL8721F | RTL8720F | RTL872xD | RTL8735B |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Frequency | 2.4GHz/5GHz | 2.4GHz | 2.4GHz | 2.4GHz | 2.4GHz | 2.4GHz/5GHz | 2.4GHz/5GHz | 2.4GHz | 2.4GHz/5GHz | 2.4GHz/5GHz | |
| Bandwidth | 40MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 40MHz | 20MHz | |
| Maximum PHY rate | 150Mbps | 114.7Mbps | 114.7Mbps | 114.7Mbps | 114.7Mbps | 114.7Mbps | 114.7Mbps | 114.7Mbps | 150Mbps | 72Mbps | |
| 802.11a | |||||||||||
| 802.11ax (Wi-Fi6) | |||||||||||
| 802.11b/g/n | |||||||||||
| 802.11e/i/w/d/k/v/r | |||||||||||
| WMM/WPA1~3/WPS/ 802.1X/EAP |
|||||||||||
| UL LDPC | |||||||||||
| DL STBC | |||||||||||
| Auto Antenna Diversity | |||||||||||
| CSI | |||||||||||
| MCC | |||||||||||
| R-MESH | |||||||||||
| Wi-Fi Card Mode | |||||||||||
| P2P/NAN | |||||||||||
| TWT |
Bluetooth Feature List
| Features | Filter | RTL8721Dx | RTL8720E | RTL8710E | RTL8726E | RTL8713E | RTL8730E | RTL8721F | RTL8720F | RTL872xD | RTL8735B |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Bluetooth Mode | Bluetooth LE | Bluetooth LE | Bluetooth LE | Bluetooth Dual Mode | Bluetooth Dual Mode | Bluetooth Dual Mode | Bluetooth LE | Bluetooth LE | Bluetooth LE | Bluetooth LE | |
| Bluetooth BR/EDR | |||||||||||
| LE Audio | |||||||||||
|
Dedicated antenna for Bluetooth |
|||||||||||
| Scatternet | |||||||||||
| LE 2Mpbs PHY | |||||||||||
| LE Long Range | |||||||||||
|
LE Advertising Extensions |
|||||||||||
| Periodic Advertising | |||||||||||
| Periodic Advertising Sync Transfer |
|||||||||||
|
Direction Finding (AoA/AoD) |
|||||||||||
|
LE Isochronous Channels (CIS/BIS) |
|||||||||||
| LE Power Control | |||||||||||
| SIG Mesh | |||||||||||
| High-Power Mode | TBD |
System Power Consumption
| Mode | Wi-Fi | Power Consumption | Unit | Comment |
|---|---|---|---|---|
| Deep-Sleep | OFF | µA | ||
| Sleep | OFF | µA | ||
| Active | OFF | mA | ||
| WoWLAN | DTIM=3 | |||
| WoWLAN | DTIM=10 |
Note:
- Test conditions: 3.3V, 25°C
- WoWLAN: System average power consumption
Application Scenarios
Ameba IC leverages Wi-Fi and BLE dual-mode capabilities to build a smart home network hub, enabling cross-protocol interconnection between Bluetooth and Wi-Fi devices. It supports multi-node BLE Mesh and Matter protocol for large-scale device networking. Based on Arm® security architecture and PSA certification, it ensures encrypted transmission of device control commands and private data. The ultra-low power design meets 24-hour standby requirements, while rich peripherals can directly drive sensors, lighting modules, and actuators. Voice control, scenario linkage, and remote management create an efficient and convenient whole-house smart ecosystem.
Ameba IC empowers Mesh network architecture to significantly expand Wi-Fi coverage and eliminate signal dead zones. Unlike traditional Mesh that requires enabling SoftAP and TCP/IP stack forwarding on relay nodes, R-Mesh implements data forwarding directly at the Wi-Fi MAC layer, reducing memory and computing resource consumption. It features no routing table maintenance, proactive loop avoidance, and sub-millisecond parent switching—all transparent to the application layer. Includes open-source multi-terminal R-Mesh visualization simulation tools for more convenient and intuitive visual testing. With RPP zero-provisioning protocol, it is suitable for rapid deployment of large-scale nodes. Widely used in smart lighting, smart agriculture, PV micro-inverters, and other scenarios.
