Tool/software:
TIBPAL20L8-20MJTB seems to be a currently orderable P/N (24 pin CDIP package).
Can TI supply this part under any of the following standards:
5962-8767101LX
JM38510/50501BLX
8412901LX
This would simplify our approval process to support an old design (this is the same product as referenced in the linked thread).