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TXW813

The TXW813 is a low-power, high-performance, highly integrated 2.4GHz Wi-Fi and small wireless multi-mode IoT SOC chip. It integrates IEEE 802.11 b/g/n baseband and RF circuits, including a power amplifier (PA), low noise amplifier (LNA), RF balun, antenna switch, and power management module.

The TXW813 Wi-Fi baseband implements Orthogonal Frequency Division Multiplexing (OFDM) technology, compatible with Direct Sequence Spread Spectrum (DSSS) and Complementary Code Keying (CCK) technologies, supporting the IEEE 802.11 b/g/n protocol. It supports a standard bandwidth of 20MHz and narrow bandwidths of 5MHz/10MHz, providing a maximum physical layer rate of 72.2Mbit/s.

The TXW813 chip integrates a high-performance 32-bit microprocessor and offers a rich set of peripheral interfaces, including USB2.0 High Speed Device, SDMMC Host, SDIO2.0 Slave, SPI Master & Device, UART, IIC, IIS, PDM, IR Send/Receive, PWM, GPIO, and ADC/DACs.

Features​

Wi-Fi MAC & PHY​

  • Supports IEEE 802.11 b/g/n standards
  • Supports 1T1R mode with data rates up to 72.2Mbps
  • Excellent transmission power and reception sensitivity
  • Built-in PA, LNA, and RF switch
  • Supports STA, AP, AP+STA (relay), STA+STA functions
  • Frame aggregation (TX/RX A-MPDU, RX A-MSDU)
  • Supports RX STBC (Space Time Block Coding)
  • Supports WPA/WPA2/WPA3

BLE​

  • Supports fast Bluetooth network configuration
  • Supports Wi-Fi/BLE PTA coexistence

MCU​

  • CK803 CPU, maximum clock speed 240MHz
  • 272KB SRAM
  • Supports various external frequency crystal oscillators and shared crystal oscillator input with the system main control chip
  • Supports RTC
  • Supports 32KHz crystal oscillator
  • 17 timers
  • Supports ULP and LP low power modes with ULP mode current < 28uA @25°C, and multiple IO wake-up support
  • Built-in temperature sensor
  • Built-in LVD detection
  • Built-in watchdog
  • 48-bit unique chip ID (UID)

Peripherals​

  • 20 programmable GPIOs, support edge or level triggered interrupts
  • One 12-bit ADC, can be multiplexed as DAC
  • One 12-bit analog comparator
  • One QSPI, support external SPI FLASH and PSRAM
  • 2 I2S/PCM
  • 1 PDM
  • 1 SDIO2.0 High Speed Device
  • 1 SD Host Controller
  • 1 USB2.0 High Speed Device
  • 3 SPI interfaces Master/Slave (2 configurable as IIC Master/Slave)
  • 3 UART interfaces (1 supports flow control and RS485)
  • 2 infrared transmitters (1 supports IrDA) and multiple receivers
  • 14 PWM outputs (multiplexed with timer), including 4 independent 16-bit PWM, support low power mode PWM

Boot Interfaces​

  • SDIO2.0 Device、USB2.0 Device、SPI Slave、UART
  • SPI FLASH

Data Security​

  • Support for AES 128/192/256 ECB/CBC/CTR encryption and decryption
  • Support for SHA256
  • Support for 5/7/8/16/32-bit CRC checking
  • Support for SPI Flash firmware encryption protection
  • TRNG (True Random Number Generator)

Temperature Range​

  • -40°C to 85°C

What's next?​

Package Options​

ModelPackageSRAMFlashPSRAMUSB2.0DVPMJPEG CodecSDIOLCD
TXW813-320QFN32272KB2MB✔️✔️