RTL8773E Series RTL8773E Series
RTL8773E Series

Introduction

The RTL8773E series is a single-chip Bluetooth SoC audio solution for smart display applications. The RTL8773E series is qualified for Bluetooth 5.4 specifications, and embedded hardware modules include a low-power MCU, a low-power DSP, high-performance audio codec, 2.5D image engine, image decompression unit, power management unit, ADC, ultra-low power RF transceiver, and smart I/O distribution controller. And it integrates QSPI, I8080, and RGB display interfaces, making it a single-chip solution suitable for smart display applications.

DESCRIPTION

CHIP

Highlights

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Powerful Graphics Processing Capability

2.5D engine supports rendering, scaling, rotating, deforming, and other processing of graphics.

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Powerful CPU

CPU computing power and MCU memory provide sensor algorithms or external device control capabilities.

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Powerful DSP

DSP computing power provides powerful speech and audio processing capabilities.

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Multi Mode Bluetooth

Includes Bluetooth LE Bluetooth Legacy Audio、LE Audio, Implement product requirements with the latest technology.

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Versatile Display Interfaces

Integrated with QSPI, I8080, and RGB565/888 display interfaces to support various screen specifications.

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Efficient UI Design Tool

RVD Tool offers a visual GUI design function with a comprehensive component library, enabling customers to design interfaces more efficiently and conveniently.

Specifications

General Description
  • Bluetooth 5.4
  • BLE Audio
  • Max TX Power +13dBm
  • Receive Sensitivity: -95.8dBm(BR), -95.6dBm (EDR), -100.6dBm (1M BLE), -96.5dBm (2M BLE)
MCU/DSP Platform
  • RM300F, 100MHz
  • HiFi Mini, 200MHz
  • 800kByte SRAM
  • 0/4/8MByte PSRAM
Peripheral Interface
  • 2.5D Graphics Engine
  • Display Controller
  • Image Decompressor
  • AMIC x 2, DMIC x 4
  • Audio DAC x 1
  • Up to 38 GPIOs
  • SPIC x 3
  • SDIO x 1
  • ADC x 4
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RTL8773E Series

General Description
  • Bluetooth 5.4
  • BLE Audio
  • Max TX Power +13dBm
  • Receive Sensitivity: -95.8dBm(BR), -95.6dBm (EDR), -100.6dBm (1M BLE), -96.5dBm (2M BLE)
MCU/DSP Platform
  • RM300F, 100MHz
  • HiFi Mini, 200MHz
  • 800kByte SRAM
  • 0/4/8MByte PSRAM
Peripheral Interface
  • 2.5D Graphics Engine
  • Display Controller
  • Image Decompressor
  • AMIC x 2, DMIC x 4
  • Audio DAC x 1
  • Up to 38 GPIOs
  • SPIC x 3
  • SDIO x 1
  • ADC x 4

Part Number Comparison

Part Number
RTL8773EWE
RTL8773EWE-VP
RTL8773EWE-VS
RTL8773ETP
RTL8773EWP

CPU

100MHz

100MHz

100MHz

100MHz

100MHz

Flash

External

External

External

External

External

MCM PSRAM

N

4MB

8MB

4MB

8MB

2D/2.5D Engine

Y

Y

Y

Y

Y

Display Resolution

466×466, 16bits, 60fps

466×466, 16bits, 60fps

466×466, 16bits, 60fps

466×466, 16bits, 60fps

800×480, 16bits, 30fps

A-MIC Number

×2

×2

×2

×2

×2

DAC

×1

×1

×1

×1

×1

GPIO

38

38

38

38

56

SDIO

Y

Y

Y

Y

Y

SPIC

×2 SPIC0, SPIC2

×2 SPIC0, SPIC2

×2 SPIC0, SPIC2

×2 SPIC0, SPIC2

×2 SPIC0, SPIC2

Package (mm)

QFN68, 7×7

QFN68, 7×7

QFN68, 7×7

QFN68, 7×7

QFN88, 10×10

NAND Boot

N

N

Y

N

N

Applications

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Smart Watch

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Smart Watch

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Smart Watch

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Applications

Learn about the typical application cases that the RTL8773E series can be used to implement. Of course, there are more applications waiting for you to discover.

Dashboard
Dashboard

The chip integrates mainstream display interfaces and image processing engines available in the market, along with a rich set of peripheral interfaces such as SPI, I2C, CAN, PWM, and Keyscan. This enables dashboard products to deliver richer displays and smarter functionalities. The comprehensive product family also allows developers to easily select a suitable and competitive solution. Realtek's Dashboard SDK includes a complete user UI development kit, empowering developers to rapidly bring their creative ideas to life.

Smart Watch
Smart Watch

Using a single Bluetooth SoC as the main controller for the smart watch, it connects peripherals through interfaces such as SPIC, I2C, SPI, GPIO, I8080, MIC, and DAC, and supports Bluetooth connectivity to phones and headphones, achieving a highly integrated smart watch solution.

TWS
TWS

The Realtek true wireless stereo Bluetooth earphones use Realtek's high-performance Bluetooth chip to achieve fast and stable connections with low-loss transmission. With a professional audio processing solution, these earphones can deliver Hi-Fi stereo sound quality and are equipped with noise cancellation and ambient sound modes to ensure clarity in calls and music listening. Additionally, the earphones feature a low-power design to extend battery life, support touch controls, and have a lightweight and portable form, making them suitable for commuting, sports, and various other scenarios, providing users with a high-quality, unrestricted audio experience.

Smart Charging Case
Smart Charging Case

The Realtek smart charging case utilizes Bluetooth technology for seamless connection with headphones and smartphones. Equipped with Auracast™ technology, it revolutionizes the way users interact with audio devices, making it a critical node for audio information transmission. Additionally, the product supports various interfaces such as I2S, USB, ADC, SDIO, SPDIF, and QSPI, significantly enhancing versatility and providing robust support for a wide range of smart charging case products from entry-level to high-end.

Auracast™
Auracast™

Based on Bluetooth LE Audio technology, Realtek offers a one-stop solution covering Auracast™ Transmitter, Receivers, and Assistant roles. This solution features high integration and flexibility, supporting rich interfaces such as USB, I2S, SPDIF, and QSPI to adapt seamlessly to various audio sources and display devices. Leveraging its high-performance MCU and DSP capabilities, customers can rapidly develop diverse products suitable for public broadcasting and audio sharing scenarios.

Gaming Headset
Gaming Headset

The ultra-low latency dual-mode gaming headset integrates both 2.4G and Bluetooth connectivity options. In 2.4G mode, the headset connects to a computer or gaming console via a dedicated adapter, achieving precise audio-visual synchronization for an immersive gaming experience. In Bluetooth mode, the headset can stably connect directly to a smartphone, suitable for calls and high-quality music listening. The device is equipped with a one-touch switch function, allowing users to quickly handle incoming calls during gaming, easily balancing entertainment and daily communication needs.

Smart HMI
Smart HMI

The Realtek HMI system integrates multiple connection protocols such as Wi-Fi, Thread, Matter, and BLE, and is equipped with efficient UI development tools to provide customers with a one-stop solution from "underlying connection" to "top-level interaction." It adopts a dual RF scheme, supporting the 15.4 protocol and BLE Mesh to work collaboratively, reducing the loss rate of critical events in smart homes. The system also supports Ethernet and CAN interfaces, meeting the stable communication needs of industrial automation and vehicle data reading. Additionally, users can use the LVGL, Honey GUI engine, and RVD tools to quickly develop smooth touch interfaces.

Dashboard
Dashboard

The chip integrates mainstream display interfaces and image processing engines available in the market, along with a rich set of peripheral interfaces such as SPI, I2C, CAN, PWM, and Keyscan. This enables dashboard products to deliver richer displays and smarter functionalities. The comprehensive product family also allows developers to easily select a suitable and competitive solution. Realtek's Dashboard SDK includes a complete user UI development kit, empowering developers to rapidly bring their creative ideas to life.

Smart Watch
Smart Watch

Using a single Bluetooth SoC as the main controller for the smart watch, it connects peripherals through interfaces such as SPIC, I2C, SPI, GPIO, I8080, MIC, and DAC, and supports Bluetooth connectivity to phones and headphones, achieving a highly integrated smart watch solution.

TWS
TWS

The Realtek true wireless stereo Bluetooth earphones use Realtek's high-performance Bluetooth chip to achieve fast and stable connections with low-loss transmission. With a professional audio processing solution, these earphones can deliver Hi-Fi stereo sound quality and are equipped with noise cancellation and ambient sound modes to ensure clarity in calls and music listening. Additionally, the earphones feature a low-power design to extend battery life, support touch controls, and have a lightweight and portable form, making them suitable for commuting, sports, and various other scenarios, providing users with a high-quality, unrestricted audio experience.

Smart Charging Case
Smart Charging Case

The Realtek smart charging case utilizes Bluetooth technology for seamless connection with headphones and smartphones. Equipped with Auracast™ technology, it revolutionizes the way users interact with audio devices, making it a critical node for audio information transmission. Additionally, the product supports various interfaces such as I2S, USB, ADC, SDIO, SPDIF, and QSPI, significantly enhancing versatility and providing robust support for a wide range of smart charging case products from entry-level to high-end.

Auracast™
Auracast™

Based on Bluetooth LE Audio technology, Realtek offers a one-stop solution covering Auracast™ Transmitter, Receivers, and Assistant roles. This solution features high integration and flexibility, supporting rich interfaces such as USB, I2S, SPDIF, and QSPI to adapt seamlessly to various audio sources and display devices. Leveraging its high-performance MCU and DSP capabilities, customers can rapidly develop diverse products suitable for public broadcasting and audio sharing scenarios.

Gaming Headset
Gaming Headset

The ultra-low latency dual-mode gaming headset integrates both 2.4G and Bluetooth connectivity options. In 2.4G mode, the headset connects to a computer or gaming console via a dedicated adapter, achieving precise audio-visual synchronization for an immersive gaming experience. In Bluetooth mode, the headset can stably connect directly to a smartphone, suitable for calls and high-quality music listening. The device is equipped with a one-touch switch function, allowing users to quickly handle incoming calls during gaming, easily balancing entertainment and daily communication needs.

Smart HMI
Smart HMI

The Realtek HMI system integrates multiple connection protocols such as Wi-Fi, Thread, Matter, and BLE, and is equipped with efficient UI development tools to provide customers with a one-stop solution from "underlying connection" to "top-level interaction." It adopts a dual RF scheme, supporting the 15.4 protocol and BLE Mesh to work collaboratively, reducing the loss rate of critical events in smart homes. The system also supports Ethernet and CAN interfaces, meeting the stable communication needs of industrial automation and vehicle data reading. Additionally, users can use the LVGL, Honey GUI engine, and RVD tools to quickly develop smooth touch interfaces.

*Specific applications may can only be supported by certain chips