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The LCD display comes in 2 sizes and with or without an i2c adapter. Make sure you get the one with the i2c adapter pcf8574t as it saves a lot of time and all of these instructions are geared towards the adapter. The size doesn't matter a whole lot, but I typically only use the 2 lines by 16 characters (LCD1602). The other size has 4 lines and 20 characters across (LCD2004).
Schematic: [click here]
Software: [click here]
Note that the utility does not control the OE pin on the txs0108e, so you'll need to set that pin high manually before running the program.