company blog about Allwinner Wireless IoT XR872AT / XR872ET Highly Integrated Wireless IoT Chip

Mingjiada Electronics supplies and recycles Allwinner XR872AT/XR872ET wireless IoT chips—highly integrated wireless IoT chips

XR872AT/XR872ET Product Overview

The XR872AT is a highly integrated wireless multimedia chip featuring an Arm® Cortex®-M4F processor, a low-power 802.11b/g/n subsystem, multiple ADC & DAC interfaces, an image encoding unit, a power management unit, and 4MB of embedded PSRAM. It is primarily designed for AIoT applications.

XR872ET is a highly integrated wireless multimedia chip featuring an Arm® Cortex®-M4F processor, a low-power WLAN subsystem, multiple ADC & DAC interfaces, an image encoding unit, and a power management unit. The chip is primarily designed for AIoT products.

XR872AT/XR872ET Product Features

Integrated Arm Cortex-M4F CPU

Supports 2.4GHz WLAN

Integrated audio subsystem

Supports JPEG hardware encoding

Specifications

Model: XR872AT

CPU: Arm Cortex-M4F, up to 384MHz

WLAN: 2.4GHz, IEEE 802.11b/g/n

Package: QFN52, 6mm x 6mm, 0.4p pitch

Power Supply: 1.8 ~ 5.5V Vbat

RAM: 416KB

ROM: 160KB

PSRAM: SiP 4MB OPI PSRAM. Also externally expandable

QPI+XIP Flash: 1

UART: 3

SPI: 2

I2C: 2

PWM: 8

DAC: 1

ADC: 7

SDIO: 1

Infrared Interface: Transmitter*1, Receiver*1

Audio Codec: 24-bit ADC + 24-bit DAC + Line-in I2S*1, DMIC*1

Camera Input: JPEG - 1920×1088 JPEG or 640×480@30fps

Wake-up Interfaces: 9

General-purpose I/O: 33

Software System: FreeRTOS, AliOS-Things, OpenHarmonyOS

Model: XR872ET

CPU: Arm Cortex-M4F, up to 240MHz

WLAN: 2.4GHz, IEEE 802.11b/g/n

Package: QFN40, 5mm x 5mm, 0.4p pitch

Power Supply: 1.8 ~ 5.5V

RAM: 448KB

ROM: 160KB

PSRAM: /

QPI+XIP Flash: 1

UART: 3

SPI: 2

I2C: 2

PWM: 8

ADC: 2

DAC: 1

SDIO: 1

Infrared: Transmitter*1, Receiver*1

Audio Codec: 24-bit ADC + 24-bit DAC

Camera Input: JPEG - 1920 x 1088 JPEG or 640x480@30fps

Wake-up I/O: 9

General-purpose I/O: 25

Software System: FreeRTOS, AliOS-Things, OpenHarmonyOS

Mingjiada Electronics Supply & Recycling Services

Brand New Original: Factory-direct channels, fresh batches, traceable

Stock & Fast Ship: Small batches shipped same day, large volumes with stable lead times

High-Value Recycling: Long-term recycling of XR872AT/XR872ET new/stock/surplus inventory

Nationwide On-Site Service: Hong Kong delivery available, 24-hour quoting, cash settlement