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RTL8726EA Series

Introduction

The Realtek RTL8726EA series is a Combo SoC that supports Wi-Fi 6 (2.4GHz) & BT & Bluetooth (BLE 5.2) specifications. With dual RISC cores running up to 400MHz, 500MHz HiFi5 DSP, stable security performance and abundant peripheral resources, it is widely used in various products such as smart home appliances, smart kitchen appliances, AI toys, and smart Bluetooth speakers, etc.

DESCRIPTION

CHIP

Highlights

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WIFI 6 2.4G + BT + BLE 5.2

WIFI 6 2.4G;
BR/EDR;
BLE 5.2;
BLE Mesh 1.1 long Range.

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Rich System Resource

MCU Dual Core @400MHz;
HiFi5 DSP @500MHz;
768KB SRAM;
8MB/16MB PSRAM (option);
TrustZone-M support.

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Voice Algorithm Support

Dual mic speech enhancement;
AEC algorithm;
DoA algorithm;
KWS algorithm.

Specifications

System and Platform
  • Triple cores: HiFi5 DSP, Real-M300 and KR4
  • HiFi5 DSP
    • 500MHz clock
    • 32 int8 MAC per cycle
    • 5 slot VLIW
  • Real-M300:
    • Arm Cortex-M55 compatible instruction set
    • Running at a frequency of up to 400MHz
    • 16KB 4-way I-Cache, 16KB 4-way D-Cache
  • KR4:
    • RISC-V compatible instruction set
    • Running at a frequency of up to 400MHz
    • 16KB 4-way I-Cache, 16KB 4-way D-Cache
  • Memory:
    • 768KB on-chip SRAM
    • Embedded DQ8 PSRAM, up to 250MHz
RF Features

Wi-Fi

  • 802.11 b/g/n/ax 1 x 1, 2.4GHz
  • Supports MCS0 - MCS9 20MHz bandwidth
  • Supports antenna diversity
  • Tx Power:
    • 11b 11Mbps: 20dBm
    • 11g 54Mbps: 19dBm (EVM < −25dB)
    • 11n MCS7-HT20: 18dBm (EVM < −27dB)
    • 11ax MCS9-HE20: 16dBm (EVM < −32dB)
  • Rx Sensitivity:
    • 11b 11Mbps: −91dBm
    • 11g 54Mbps: −78dBm
    • 11n MCS7-HT20: −76.5dBm
    • 11ax MCS9-HE20: −70.5dBm

BT

  • Supports classic BT
  • Supports BLE 5.2
  • Supports both 500kbps and 125kbps LE-Coded PHY (long range)
  • Supports scatter-net (concurrent central mode and peripheral mode)
  • Supports SIG Mesh v1.0 and v1.1
  • Supports AoA and AoD
Security
  • Secure boot
  • Arm TrustZone-M
  • True Random Number Generator (TRNG)
  • Hardware crypto engine
  • ECDSA engine
  • Whole or partial Flash encryption
  • Read Protection (RDP)
  • JTAG/SWD password protection/forbidden
  • 2K bytes OTP, up to 2K bits for user
Peripheral Interface
  • Flexible design of GPIO configuration
  • Multi-communication interfaces: SPI x 2, UART x 5, I2C x 2
  • Supports Real-Time Clock timer together with 15 timers
  • Supports 8 channels of PWM timer and 1 capture timer
  • Supports 6 channels of general 12-bit ADC
  • Supports 9 channels of touch pad
  • Supports 8 independent channels of GDMA
  • Embeds a serial LEDC to control the external LED lamps
  • Integrates a thermal detector to detect and monitor the real-time temperature inside the chip
  • Integrated hardware crypto engine supports AES/SHA/ECDSA
  • Integrated SPI Flash controller and PSRAM controller
  • Integrated 3 audio ADC, 1 audio DAC and 4-ch Audio Codec
  • I2S x 2: up to 384kHz sampling rate

RTL8726EA Series

System and Platform
  • Triple cores: HiFi5 DSP, Real-M300 and KR4
  • HiFi5 DSP
    • 500MHz clock
    • 32 int8 MAC per cycle
    • 5 slot VLIW
  • Real-M300:
    • Arm Cortex-M55 compatible instruction set
    • Running at a frequency of up to 400MHz
    • 16KB 4-way I-Cache, 16KB 4-way D-Cache
  • KR4:
    • RISC-V compatible instruction set
    • Running at a frequency of up to 400MHz
    • 16KB 4-way I-Cache, 16KB 4-way D-Cache
  • Memory:
    • 768KB on-chip SRAM
    • Embedded DQ8 PSRAM, up to 250MHz
RF Features

Wi-Fi

  • 802.11 b/g/n/ax 1 x 1, 2.4GHz
  • Supports MCS0 - MCS9 20MHz bandwidth
  • Supports antenna diversity
  • Tx Power:
    • 11b 11Mbps: 20dBm
    • 11g 54Mbps: 19dBm (EVM < −25dB)
    • 11n MCS7-HT20: 18dBm (EVM < −27dB)
    • 11ax MCS9-HE20: 16dBm (EVM < −32dB)
  • Rx Sensitivity:
    • 11b 11Mbps: −91dBm
    • 11g 54Mbps: −78dBm
    • 11n MCS7-HT20: −76.5dBm
    • 11ax MCS9-HE20: −70.5dBm

BT

  • Supports classic BT
  • Supports BLE 5.2
  • Supports both 500kbps and 125kbps LE-Coded PHY (long range)
  • Supports scatter-net (concurrent central mode and peripheral mode)
  • Supports SIG Mesh v1.0 and v1.1
  • Supports AoA and AoD
Security
  • Secure boot
  • Arm TrustZone-M
  • True Random Number Generator (TRNG)
  • Hardware crypto engine
  • ECDSA engine
  • Whole or partial Flash encryption
  • Read Protection (RDP)
  • JTAG/SWD password protection/forbidden
  • 2K bytes OTP, up to 2K bits for user
Peripheral Interface
  • Flexible design of GPIO configuration
  • Multi-communication interfaces: SPI x 2, UART x 5, I2C x 2
  • Supports Real-Time Clock timer together with 15 timers
  • Supports 8 channels of PWM timer and 1 capture timer
  • Supports 6 channels of general 12-bit ADC
  • Supports 9 channels of touch pad
  • Supports 8 independent channels of GDMA
  • Embeds a serial LEDC to control the external LED lamps
  • Integrates a thermal detector to detect and monitor the real-time temperature inside the chip
  • Integrated hardware crypto engine supports AES/SHA/ECDSA
  • Integrated SPI Flash controller and PSRAM controller
  • Integrated 3 audio ADC, 1 audio DAC and 4-ch Audio Codec
  • I2S x 2: up to 384kHz sampling rate

Part Number Comparison

Part Number
RTL8726EAM-VA4

Package (mm)

QFN68, 8x8

CPU

HiFi5 DSP: 500MHz Real-M300: 400MHz KR4: 400MHz

On-chip SRAM

768KB

Embedded Flash

-

Embedded PSRAM

16MB

Wi-Fi Spec

Wi-Fi 6 (2.4GHz)

Bluetooth Spec

BLE 5.2

GPIO

37

Operating Temperature

-20°C ~ 85°C