Realtek RTL872xD

SoCs

Ameba IoT wireless solutions, featuring high integration, stable performance, low power consumption, and enhanced security

ARM®/RISC-V | Wi-Fi | Bluetooth | AI | Audio | HMI

Click here to select SoC

Select SoC

Highlights

In addition to integrating essential peripheral interfaces for IoT development, Secure Boot, AES/SHA hardware encryption engine, authenticated debug access, Wi-Fi, BLE, and other important functions, this IC also supports the following features:

System Security

Integrates various security features including Arm TrustZone®, OTP storage, Flash XIP decryption, etc., to safeguard the security of customer products

Dual-band Wi-Fi

Supporting 5GHz band to effectively avoid common interference sources (Bluetooth, Zigbee, and microwave devices etc.) through spectrum isolation, leveraging abundant non-overlapping channel resources to significantly reduce co-channel interference risks, delivering high-speed, low-interference stable transmission performance

Audio Codec Integrated

Built-in audio codec supports audio input and output, reducing dependency on external components and adaptation costs, facilitating voice interaction and audio playback.

Ultra-Low Power

Supporting ultra-low-power WoWLAN and enabling rapid restoration of the original runtime contexts, it empowers battery-powered devices with network listening wake-up functionality

More

USB 2.0 High-Speed Host/Device, SD card/eMMC

System Architecture

Real-M300

• Armv8-M Architecture
• Arm Cortex®-M33 ISA compatible
• Up to 200MHz
• 32KB I-Cache
• 4KB D-Cache
• FPU/DSP instruction extensions
• Arm TrustZone®-M

Real-M200

• Armv8-M Architecture
• Arm Cortex®-M23 ISA compatible
• Up to 20MHz
• 16KB I-Cache
• 4KB D-Cache

Memory System

• Real-300: 512KB SRAM, 4MB PSRAM, 8-bit DDR
• Real-200: 64KB SRAM, 1KB retention SRAM, retains data in power-saving mode

Part Number

Part number	RTL8720DN-VA1-CG	RTL8720DN-VT1-CG	RTL8720DF-VA1-CG	RTL8720DF-VT1-CG	RTL8721DM-VA1-CG	RTL8722DM-VA1-CG	RTL8722DM-VP1-CG
Real-M300	200MHz	200MHz	200MHz	200MHz	200MHz	200MHz	200MHz
Real-M200	40MHz	40MHz	40MHz	40MHz	40MHz	40MHz	40MHz
On-chip SRAM	512KB	512KB	512KB	512KB	512KB	512KB	512KB
Arm TrustZone
NOR Flash			4MB	4MB
PSRAM					4MB	4MB	4MB
Wi-Fi	Wi-Fi 4 (Dual Band)	Wi-Fi 4 (Dual Band)	Wi-Fi 4 (Dual Band)	Wi-Fi 4 (Dual Band)	Wi-Fi 4 (Dual Band)	Wi-Fi 4 (Dual Band)	Wi-Fi 4 (Dual Band)
Bluetooth	LE	LE	LE	LE	LE	LE	LE
Operating voltage	2.97V ~ 3.63V	2.97V ~ 3.63V	2.97V ~ 3.63V	2.97V ~ 3.63V	2.97V ~ 3.63V	2.97V ~ 3.63V	2.97V ~ 3.63V
Operating temperature	-20°C ~ 85°C	-40°C ~ 105°C	-20°C ~ 85°C	-40°C ~ 105°C	-20°C ~ 85°C	-20°C ~ 85°C	-20°C ~ 85°C
Package (mm)	QFN48 (6 x 6)	QFN48 (6 x 6)	QFN48 (6 x 6)	QFN48 (6 x 6)	QFN68 (8 x 8)	QFN88 (10 x 10)	QFN88 (10 x 10)

Peripheral Interfaces

FUNCTION	RTL8720DN-VA1	RTL8720DN-VT1	RTL8720DF-VA1	RTL8720DF-VT1	RTL8721DM-VA1	RTL8722DM-VA1	RTL8722DM-VP1
GPIO	19	19	20	20	32	52	52
SPI	2	2	3	3	3	3	3
UART	4	4	4	4	3	4	4
I2C	2	2	2	2	1	2	2
I2S			1	1	1	1	1
Audio analog output						2	2
Digital microphone	2	2	2	2	2	2	2
Analog microphone						1
ADC and Cap-touch	3	3	3	3	7	7	7
Infrared Transeiver	1	1	1	1	1	1	1
Key-Scan	5 x 4	5 x 4	5 x 4	5 x 4	7 x 7	8 x 8	8 x 8
SWD Interface	1	1	1	1	1	1	1
PWM	8	8	13	13	11	17	19
USB	1	1	1	1	1	1	1
SDIO_HOST			1	1		1	1

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.

The third column indicates the current IC series. If it doesn't meet your needs, you can click on other IC series to view them

Features	Filter	RTL8721Dx	RTL8720E	RTL8710E	RTL8726E	RTL8713E	RTL8730E	RTL8721F	RTL872xD	RTL8735B
AES Hardware Engine	Select
SHA Hardware Engine	Select
ECDSA/ECDH Hardware Engine	Select
EDDSA Hardware Engine	Select
RSA Hardware Engine	Select
Secure Boot	Select
Flash OTF Decryption	Select
Arm TrustZone	Select
OTP Secure Storage	Select
True Random Number Generator	Select
HUK Derivation Mechanism	Select
Authenticated Debug Access	Select

Secure Boot

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

Flash OTF Decryption

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

Arm TrustZone®-M

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

eFuse Secure Storage

After locking the key area, access is limited to the security engine, preventing tampering and unauthorized reading

Authenticated Debug Access

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

Wireless Connectivity

The third column indicates the current IC series. If it doesn't meet your needs, you can click on other IC series to view them

Wi-Fi Feature List

Features	Filter	RTL8721Dx	RTL8720E	RTL8710E	RTL8726E	RTL8713E	RTL8730E	RTL8721F	RTL872xD	RTL8735B
Frequency	2.4GHz 2.4GHz/5GHz	2.4GHz/5GHz	2.4GHz	2.4GHz	2.4GHz	2.4GHz	2.4GHz/5GHz	2.4GHz/5GHz	2.4GHz/5GHz	2.4GHz/5GHz
Bandwidth	20MHz 40MHz	40MHz	20MHz	20MHz	20MHz	20MHz	20MHz	20MHz	40MHz	20MHz
Maximum PHY rate	114.7Mbps 150Mbps 72Mbps	150Mbps	114.7Mbps	114.7Mbps	114.7Mbps	114.7Mbps	114.7Mbps	114.7Mbps	150Mbps	72Mbps
802.11a	Select
802.11ax (Wi-Fi6)	Select
802.11b/g/n	Select
802.11e/i/w/d/k/v/r	Select
WMM/WPA1~3/WPS/ 802.1X/EAP	Select
UL LDPC?	Select
DL STBC?	Select
Auto Antenna Diversity	Select
CSI?	Select
MCC?	Select
R-MESH?	Select
Wi-Fi Card Mode	Select
P2P/NAN	Select
TWT?	Select

Bluetooth Feature List

Features	Filter	RTL8721Dx	RTL8720E	RTL8710E	RTL8726E	RTL8713E	RTL8730E	RTL8721F	RTL872xD	RTL8735B
Bluetooth Mode	Bluetooth Dual Mode Bluetooth LE	Bluetooth LE	Bluetooth LE	Bluetooth LE	Bluetooth Dual Mode	Bluetooth Dual Mode	Bluetooth Dual Mode	Bluetooth LE	Bluetooth LE	Bluetooth LE
Bluetooth BR/EDR?	Select
LE Audio?	Select
Dedicated antenna for Bluetooth?	Select
Scatternet?	Select
LE 2Mpbs PHY	Select
LE Long Range?	Select
LE Advertising Extensions?	Select
Periodic Advertising	Select
Periodic Advertising Sync Transfer	Select
Direction Finding (AoA/AoD)?	Select
LE Isochronous Channels (CIS/BIS)?	Select
LE Power Control	Select
SIG Mesh?	Select
High-Power Mode?	Select	TBD

System Power Consumption

Mode	Wi-Fi	Power Consumption	Unit	Comment
Deep-Sleep	OFF	10	µA	Flash package
Sleep	OFF	75	µA	Flash package
Active	OFF	20	mA	0.9V WFI mode, CPU=200MHz
WoWLAN	DTIM=3	191	µA	2.4G mode
WoWLAN	DTIM=10	110	µA	2.4G mode

Note:

• Test conditions: 3.3V, 25°C
• WoWLAN: System average power consumption

Application Scenarios

• Smart door lock
• Smart toy
• Smart voice
• Smart remote controller

• Wi-Fi headset
• Wi-Fi gamepad
• BLE gateway
• Smart POS

Home appliance control panel

Smart door lock

Smart toy

Smart voice

Smart remote controller

Wi-Fi headset

Wi-Fi gamepad

BLE gateway

Smart POS

Development Resources

Software Resources

	FreeRTOS SDK Download	Link
	FreeRTOS SDK Guide	Link
	Development Tools	Link

Hardware Resources

	Datasheet	Link
	Pin Multiplexing	Link

EVB Purchase

	PKE8720DF-A00 (Taobao)	Link
	PKE8720DF-C13 (Taobao)	Link