I'm trying to pin down this component
Googling has got me to these two but I can't work out the difference or if they match.
Really appreciate some help IDing it. Thanks
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According to the Texas Instruments datasheet, the only difference between the two part numbers is how the chips are packaged:
The actual chips themselves are identical. They're both octal transparent D-type latches in a 20-SOIC package.
If you are hand-soldering or doing a small-batch, they are completely interchangeable.
If you are doing a large-scale assembly using automated equipment, you'll choose the -DWR part if your assembler/machine expects the parts on tape-and-reel and -DW if the machine expects to be fed from a tube.
Welcome to EE Stack Exchange!
You've pretty much done all the work already, thanks for that.
The part you have there is technically the SN74AHC373 from TI (see my username <3).
The "DW" and "DWR" are just there to designate the IC package and order quantity (DW in this case corresponds to SOIC, and the R means the large reel when ordering). From an electrical perspective the two part numbers you listed are identical.
You can see this info on the Order Now tab of TI's website.