Smart Gateway

RTL8721DxRTL8730ERTL8721FRTL872xD

Highlights

Dual-core Architecture

• Real-M300 @345MHz

  • Armv8.1-M architecture (Arm® Cortex®-M55 ISA compatible)

  • Dedicated application processor

• Real-M200 @115MHz

  • Armv8-M architecture (Arm® Cortex®-M23 ISA compatible)

  • Dedicated network processor

Storage

• 512KB SRAM

• QSPI NOR Flash

• DQ8 DDR PSRAM

Security

• PSA Level 2 Certified 👉

• Armv8.1 TrustZone®-M

• TRNG

• AES/SHA

• JTAG/SWD password protection

Wireless

• Wi-Fi4 Dual-Band

• Wi-Fi Dolby Atmos Solution

• Wi-Fi R-Mesh 👉

• Wi-Fi Card Mode 👉

• BLE 5.0

• BLE Mesh 1.1 long Range

• BT Classic

Ultra-Low Power

• Sleep Mode:

  • WoWLAN DTIM=10: 75~85µA

  • Wi-Fi OFF: 37.7µA

• Deep-Sleep: 13.9µA

More

• Zephyr Supported 👉

• Display

• Pixel Processing Engine

• OSPI display interface

• Audio

Resources

• Datasheet

• Hardware

• Pinmux

• Tools

Product Comparison

Part number	Real-M300	Real-M200	On-chip SRAM	TrustZone	NOR Flash	PSRAM	Wi-Fi	Bluetooth	Operating voltage	Operating temperature	Package (mm)
RTL8721DAF-VA2-CG	345MHz	115MHz	512KB	Y	4MB	X	Wi-Fi 4 (2.4GHz + 5GHz)	BLE 5.0	2.97V ~ 3.63V	-20°C ~ 85°C	QFN48 (6 x 6)
RTL8721DAF-VT2-CG	345MHz	115MHz	512KB	Y	4MB	X	Wi-Fi 4 (2.4GHz + 5GHz)	BLE 5.0	2.97V ~ 3.63V	-40°C ~ 105°C	QFN48 (6 x 6)
RTL8721DAM-VA2-CG	345MHz	115MHz	512KB	Y	X	4MB	Wi-Fi 4 (2.4GHz + 5GHz)	BLE 5.0	2.97V ~ 3.63V	-20°C ~ 85°C	QFN48 (6 x 6)
RTL8721DCF-VA2-CG	345MHz	115MHz	512KB	Y	4MB	X	Wi-Fi 4 (2.4GHz + 5GHz)	BLE 5.0	2.97V ~ 3.63V	-20°C ~ 85°C	QFN68 (8 x 8)
RTL8721DCM-VA2-CG	345MHz	115MHz	512KB	Y	X	4MB	Wi-Fi 4 (2.4GHz + 5GHz)	BLE 5.0	2.97V ~ 3.63V	-20°C ~ 85°C	QFN68 (8 x 8)
RTL8721DCM-VA3-CG	345MHz	115MHz	512KB	Y	X	8MB	Wi-Fi 4 (2.4GHz + 5GHz)	BLE 5.0	2.97V ~ 3.63V	-20°C ~ 85°C	QFN68 (8 x 8)
RTL8721DGF-VW2-CG	345MHz	115MHz	512KB	Y	4MB	X	Wi-Fi 4 (2.4GHz + 5GHz)	BLE 5.0	1.71V ~ 3.63V	-20°C ~ 85°C	BGA100 (5.1 x 5.1)
RTL8721DGM-VW2-CG	345MHz	115MHz	512KB	Y	X	4MB	Wi-Fi 4 (2.4GHz + 5GHz)	BLE 5.0	1.71V ~ 3.63V	-20°C ~ 85°C	BGA100 (5.1 x 5.1)

Block Diagram

Core Architecture

• Real-M300 (KM4)

  • Armv8.1-M architecture (Arm® Cortex®-M55 ISA compatible)

  • Up to 345MHz, 3-stage pipeline

  • 16KB 4-way I-Cache + 16KB 4-way D-Cache

  • Integrated FPU/DSP extensions

  • Hardware-enforced isolation via TrustZone®-M

• Real-M200 (KM0)

  • Armv8-M architecture (Arm® Cortex®-M23 ISA compatible)

  • Up to 115MHz, 2-stage pipeline

  • Code-compatible with KM4, Optimized for μA-level operation

Memory System

• On-chip memory: 512KB SRAM

• External memory (including KGD):

  • QSPI NOR Flash (up to 104MHz)

  • DQ8 DDR PSRAM (up to 200MHz)

• Bus architecture: Multi-layer AXI bus with parallel access

Peripheral Interfaces

• Flexible design of GPIO configuration

• Multi-communication interfaces: SPI x 2, UART x 4, I2C x 2

• Hardware Key-Scan interface supports up to 8*8 (64) keys

• Hardware IR transceiver, easy to adapt to various IR protocols

• Supports Real-Time Clock timer together with 10 basic timers

• Supports 8 channels of PWM timer and 1 capture timer

• Supports 7 channels of general 12-bit ADC and 1 channel of VBAT

• Supports 4 channels of touch pad

• Supports 8 independent channels of GDMA

• Supports USB 2.0 full-speed device mode

• Supports SDIO device with 1-bit and 4-bit mode

• Embeds a serial LEDC to control the external LED lamps

• Integrated Pixel Processing Engine (PPE) to process pixel data faster

• Integrated OSPI display interface supports screens with OSPI/QSPI/SPI interfaces

• Integrated audio codec supports 2 channels DMIC interface

• I2S x 2: up to 384kHz sampling rate

Security Features

• Secure boot

• Arm TrustZone-M security architecture

• True Random Number Generator (TRNG)

• Hardware encryption engine (AES/SHA)

• Flash full-disk/partition encryption

• Read Protection (RDP) mechanism

• JTAG/SWD password protection

• 2KB OTP memory (2K bits available for user)

• PSA Level-2 certified

Wireless Connectivity

• Wi-Fi 4 (802.11a/b/g/n)

  • 802.11 a/b/g/n, 1T1R, 2.4GHz/5GHz dual-band

  • 40MHz channel bandwidth, MCS0 ~ MCS7 modulation

  • Antenna diversity

  • WoWLAN power saving:

    • 75μA@2.4GHz (DTIM=10, 3.3V, 25°C)

    • 85μA@5GHz (DTIM=10, 3.3V, 25°C)

• Bluetooth 5.0 LE

  • LE Coded PHY long-range mode (125kbps/500kbps)

  • Scatternet: 8 masters + 3 slaves

  • Tx Power: -10dBm ~ +10dBm (typical 8dBm)

  • Rx sensitivity: -99dBm@1Mbps

Power Management

• Dynamic voltage/frequency scaling (1.71V ~ 3.63V)

• Power modes:

  • Active mode: Full operation (345MHz)

  • Sleep mode: Peripherals or Wi-Fi can wake up the system (<100uA)

  • Deep-Sleep mode: 13.9µA (3.3V, 25°C)

Package and Reliability

• QFN48 package: 6mm x 6mm

• QFN68 package: 8mm x 8mm

• BGA100 package: 5.1mm x 5.1mm

• Operating voltage:

  • Standard voltage: 2.97V ~ 3.63V

  • Wide-range voltage: 1.71V ~ 3.63V

• Operating temperature:

  • Standard temperature: -20°C ~ 85°C

  • Wide-range temperature: -40°C ~ 105°C

• ESD protection: HBM ±3.5kV

Application Scenarios

• Smart home appliance

• Line controller

• Smart door lock

• Battery camera

• Smart remote controller

• Wi-Fi speaker

• Wi-Fi Card Mode

• BLE gateway

• Smart POS