Overall
Product Overview
Realtek provides highly integrated dual-mode Bluetooth single-chip solution

Realtek's Dual-Mode BT SOC series is a single-chip solution that integrates RF, PMU, CODEC, USB, high-performance CPU, and DSP, while also providing a rich set of IO interfaces. It boasts powerful computational capabilities, supports multiple algorithms, and simultaneously supports dual-mode Bluetooth (classic Bluetooth and Bluetooth Low Energy) as well as BLE audio technology, providing users with stable and reliable wireless transmission. For applications that require high-speed data transmission and low-power, small data transmission, the SOC series offers flexibility and reliability.

The SOC series finds wide applications in various fields that require wireless connectivity, audio processing, and image display functions, such as open wireless earphones (OWS), stereo headphones, gaming headphones, speakers, wearable devices, charging cases with smart screens, and smart dashboards, among others. Realtek also meets the diverse needs of different customers by offering differentiated solutions in terms of package size, GPIO count, SDK tools, audio algorithms, image processing algorithms, power management, and amplifiers.

With its high integration, strong computational capabilities, stable and reliable wireless transmission, and flexibility, the SOC series provides users with high-performance solutions in various application domains.

Dual-Mode BT Selection Table

RTL8763E & RTL8773ESL RTL8773E RTL8773D
BT version BT 5.3 BT 5.3 BT 5.3
BLE audio RTL8763EFL, RTL8763EAU, RTL8763EW-VP only Yes Yes
PAwR No Yes No
Max Tx Power 10dBm@BR 13dBm@BR 12.5dBm@BR
Package (mm) QFN50 4x6 QFN40 4x6 QFN68 7x7 BGA149 7x7 QFN68 7x7 BGA184 4.9x6
Security engine TRNG Secure Boot(RSA-2048) SHA256 AES128/256 TRNG Secure Boot(RSA-2048) SHA256 AES128/256 TRNG Secure Boot(RSA-3072) SHA256 AES128
SM3 encryption No Yes No
MCU Real-M300, (CM33 Like) 32-bit ARMv8M mainline processor@100MHz Real-M300+FPU (CM33Like) 32-bit ARMv8M mainline processor@100MHz ARM Cortex-M4F@160MHz
DSP Tensilica HiFi mini compatible@200MHz Tensilica HiFi mini compatible@200MHz Tensilica Hi-Fi mini@320MHz+Tensilica HiFi4@320MHz
SRAM size 532KB shared SRAM 800KB shared SRAM DSP+MCU total 3MB
Flash size MCM 4MB/External External MCM 8MB/16MB
PSRAM size 0/MCM 4MB (RTL8763EW-VP) 0/MCM 4MB/ MCM 8MB 0
Available GPIO Number 9 / 12 / 38 / 80 38 >60
I/O ADC 4CH 12bits 4CH 12bits 8CH 12bits
USB USB2.0( RTL8763ESE, RTL8763EAU and RTL8763EW-VC only ) No USB2.0
I2S x2 Formats : Left-Justified, PCM mode-A, PCM mode-B Application sampling rate : 48KHz Master and slave mode No master clock (MCLK) output x2 Formats : Left-Justified, PCM mode-A, PCM mode-B Application sampling rate : 48KHz Master and slave mode No master clock (MCLK) output x4 Formats :Left-justified, right-justified, PCM mode-A, PCM mode B Application sampling rate : up to 192KHz master clock (MCLK)
I8080 Yes (RTL8763EWE/RTL8763EW series) Yes No
RAMLESS LCD No Yes No
Display Resolution (RGB565) QSPI, 50MHz 454x454, 45fps QSPI, 80MHz 500x500, 60fps No
RGB888 interface No Yes No
2.5D Engine No Yes No
IDU (Image processor unit) No Yes No
CAN Bus No Yes No
SPDIF No No Yes
A-MIC number x3 x2 x4
D-MIC number x4 x4 x6
Aux in L and R 2 channels L and R 2 channels L and R 2 channels
SPK/DAC Class D x2 DAC out x1 class AB x2 + class D x2
ANC FF + FB Hybrid No Adaptive ANC
UART x3 HW flow control max baud rate at 4MHz x3 HW flow control max baud rate at 4MHz x4 HW flow control max baud rate at 4MHz
I2C x3 master/Slave mode Max data rate at 400Kbps x3 master/Slave mode Max data rate at 400Kbps x3 master/Slave mode Max data rate at 400Kbps
PWM x8 x12 x16
Sleep LED Yes No Yes
SPI x3 SPI0: Master + slave role SPI1: Master only SPI2 :Master only x3 SPI0: Master + slave role SPI1: Master only SPI2 :Master only x3 SPI0: Master + slave role SPI1: Master only SPI2 :Master only
SDIO x1 (RTL8763EWE/RTL8763EW series) x1 x1
SPIC x2 (RTL8763EWM, RTL8763EWE series) x4 (RTL8763EW series) x2 x3
Operation voltage 2.8V to 4.5V (VBAT) 2.8V to 4.5V (VBAT) 3V~5V (VBAT)

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