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TXW8301 SOC

TXW8301 is a high performance, IEEE 802.11ah standard compliant SOC. The SOC integrates RF, modem and MAC, operates in the Sub 1GHz license-exempt band, supports 1/2/4/8MHz channel widths. The data rate of RF-PHY is 150kbps~32500kbps.

Features​

Transceiver Feature​

  • Frequency band: 730 to 930MHz
  • RF bandwidth: 1/2/4/8 MHz
  • Supports external PA
  • ensitivity: -107dbm@1M MCS10，
  • RF-PHY data rate:150kbps~32500bps
  • Supports both AP and STA role

Core​

  • 32-bit High Performance RISC CPU
  • Frequency up to 192MHz
  • System sleep current consumption:100 uA

Memories​

  • 704KB SRAM
  • Internal EFUSE

Communications Peripherals​

  • 1 x SDIO2.0 device controller,4-wire,clock up to 50Mhz, support SDIO mode and SPI mode.
  • 1 x USB2.0 full speed controller, up to12mbps
  • 1 x RMII MAC up to 100Mbps
  • 1 x SPI master for Norflash
  • 2x UARTs
  • 1 x I2C interface

Electric Parameter​

  • QFN48 6mmX6mm pitch 0.4mm
  • Operating temperature: -20~85 centigrade
  • ESD HBM 4KV

Hardware​

MCU​

The TXW8301 chip features an embedded 32-bit high-performance RISC processor, with a CPU clock speed of up to 192MHz.

Memory​

  • SPI Nor FLASH The TXW8301 does not feature built-in SPI Nor Flash. When an external Nor Flash is required, the capacity must be at least 8Mbit.

Crystal Oscillator​

The TXW8301 uses a 32MHz crystal oscillator. The frequency tolerance requirement is ±10ppm.

Reset/Wake-up​

The MCLR pin supports both reset and wake-up functions.

  • Reset: In non-deep sleep mode, the module can be reset by pulling the MCLR pin low and then releasing it (pulling high). The low-level duration must be at least 2ms.

  • Wake-up: When the module enters deep sleep mode, the wake-up function can be triggered by pulling the MCLR pin low and then releasing it. The low-level duration should be approximately 500µs.

ADKEY​

A12 can function as an ADKEY with a 10-bit sampling resolution. It is used to sample low-speed signals, such as button voltage. The full-scale range is 1.1V.

Calibration Instructions​

  • Frequency Offset

Currently, the crystal load capacitor can be adjusted to keep the frequency offset within ±6kHz. The same capacitor value should be used for mass production.

Adding a frequency offset calibration function to the test box is under consideration for the future to calibrate the offset to within ±3kHz.

  • TX Power

Currently, calibration is not required. Adding a TX power calibration function to the test box is under consideration for the future.