SCEU023 October   2021

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
  3. 2Hardware
    1. 2.1 PCB Overview
    2. 2.2 Headers
    3. 2.3 Voltage Supply
    4. 2.4 Bypass Capacitors
    5. 2.5 OE Select
    6. 2.6 RC Loading
  4. 3Board Layout
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials

1 Introduction

The TXU-EVM is specifically designed to support the evaluation of the TXU family. This evaluation module (EVM) supports the customizable evaluation of TXU0104, TXU0204 and TXU0304 devices in the 12-pin VQFN package with a footprints to be optionally fitted with a 14-pin TSSOP package of the same device. Figure 1-1 shows how the PCB can be broken down into three sections with each section supporting one of the three TXU variations.

Each TXU variation is designed to support specific applicatoins. While all three variations are suited for GPIO translation, TXU0104 is best suited for GPIO translation where all data is traveling in the same direction. TXU0204 is best suited for UART and JTAG. While TXU0304 is best suited for SPI and I2S used to translate PCM data. Table 1-1 shows the comparison between the three TXU variations.

Figure 1-1 TXU Variations
Table 1-1 TXU Family Specializations
Part Number GPIO UART JTAG SPI I2S
TXU0104 (TXU0104-Q1*)1 ✓
TXU0204 (TXU0204-Q1*)1 ✓ ✓ ✓
TXU0304 (TXU0304-Q1*)1 ✓ ✓ ✓
(1) -Q1 devices are not populated but can be supported.