Taixin Semiconductor
Back to products

Wi-Fi SOC Chip

TXW817

Main-model details, variants, and resources

Online DocsProduct Selector

Product Overview

The TXW817 is a low-power, high-performance, highly integrated 2.4GHz Wi-Fi + Small Wireless multi-mode IoT SOC chip, integrating IEEE 802.11 b/g/n baseband and RF (Radio Frequency) circuits, including Power Amplifier PA (Power Amplifier), Low Noise Amplifier LNA (Low Noise Amplifier), RF balun, antenna switch, and power management modules, etc. 

    The TXW817 Wi-Fi baseband implements Orthogonal Frequency Division Multiplexing (OFDM) technology and is backward compatible with Direct Sequence Spread Spectrum (DSSS) and Complementary Code Keying (CCK) technologies, supporting the IEEE 802.11 b/g/n protocol. It supports 20MHz standard bandwidth and 5MHz/10MHz narrow bandwidth, offering a maximum physical layer rate of 72.2Mbit/s. 

    The TXW817 chip integrates a high-performance 32-bit microprocessor, built-in MJPEG (supporting VGA/720P), and offers rich peripheral interfaces including DVP, LCD, USB2.0 High Speed Host/Device (some packages support Host), SDMMC Host, SDIO2.0 Slave, RMII MAC, SPI Master & Device, UART, IIC, IIS, PDM, IR Send/Receive, PWM, GPIO, as well as Audio and general ADC/DAC, etc., supporting program execution on SPI Flash. It supports RTOS and third-party components, and provides an open and user-friendly development and debugging environment. 

    The TXW817 series includes multiple models, featuring the mainstream QFN48 package; depending on the package type, the peripheral resource configuration within the device varies; some packages support built-in PSRAM and Flash.

TXW817 Wi-Fi SOC Architecture Diagram
TXW817 Wi-Fi SOC Architecture Diagram

Product Features

TXW817 highly integrated wireless IoT SoC illustration

Highly Integrated Wi-Fi + BLE Multimode IoT SoC

TXW817 integrates 2.4GHz Wi-Fi, BLE, RF circuitry, PA, LNA, RF Balun, antenna switch, and power management blocks. It targets wireless audio/video, MiniDV, IPC, and similar connected audio/video terminal products.

TXW817 Wi-Fi 4 performance illustration

Complete Wi-Fi Performance, Up To 72.2Mbps

The chip supports IEEE 802.11 b/g/n with a 1T1R mode, 20MHz standard bandwidth, and 5MHz/10MHz narrow bandwidth. PHY rate reaches up to 72.2Mbps, with STA, AP, AP+STA relay, STA+STA, and WPA/WPA2/WPA3 security support.

TXW817 video capture and MJPEG codec illustration

Built-In Video Capture And MJPEG Codec Capability

TXW817 supports DVP, UVC, and SPI camera inputs. It integrates one MJPEG encoder and one MJPEG codec, supporting up to 1920×1080@30fps, 1280×720@60fps, and 640×480@120fps, plus timestamp, color frame, motion detection, and optical-flow hardware acceleration.

TXW817 Audio ADC DAC illustration

Enhanced Audio Capability With Audio ADC/DAC

Compared with ordinary Wi-Fi video SoCs, TXW817 strengthens the audio chain. It supports single-ended and differential analog MIC inputs, built-in PGA, one delta-sigma Audio ADC, one delta-sigma Audio DAC, 8KHz to 48KHz sampling rates, howl suppression, G.711 A-law codec, and VAD voice event detection.

TXW817 display and peripheral interface illustration

Rich Display, Peripheral, And Expansion Interfaces

The chip integrates LCD display interfaces for RGB, MCU8080, and MCU6800 panels, plus image scaling, rotation, mirroring, OSD, Alpha Blending, CCM, and Gamma correction. It also provides USB2.0 HS Host/Device, SDIO2.0, SD Host, RMII MAC, SPI, IIC, UART, IIS/PCM, PDM, PWM, GPIO, ADC/DAC, and other interfaces.

TXW817 low power security and package illustration

Complete Low-Power, Security, And Package Options

TXW817 uses a CK803 32-bit CPU up to 240MHz with 272KB SRAM, LP/ULP low-power modes, and around 28uA ULP current. Security support includes AES-128/192/256, SHA256, CRC, SPI Flash firmware encryption, and TRNG. It uses a QFN48 5×5 package, with TXW817-810 integrating 8Mbit Flash and TXW817-824 integrating 16Mbit Flash + 32Mbit PSRAM, plus USB High Speed Device & Host support.

Parameters

ChipChip ModelControllerFrequencyPackageGPIORAM/ROMFlashInterfacesVoltage
T
TXW817
TXW817-824CK803240QFN4829272*1024 +4096*10242048PWM, RTC, UART, SPI, IIC, USB3 ~ 3.6
T
TXW817
TXW817-810CK803240QFN4831272*10241024PWM, RTC, UART, SPI, IIC, USB3 ~ 3.6