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SN74ACT08-Q1: Regarding the package information

Part Number: SN74ACT08-Q1

Regarding "SN74ACT08PWRQ1".

I selected the TSSOP, 14 package. Looking at page 3 of the datasheet, it says that only the "BQA" thermal pad is available. However, the "PWP0014G" on page 18 has a thermal pad. The "PW0014A" on page 27 does not have a thermal pad.
1. What is the difference between "PWP0014G" and "PW0014A"?
2. What is the part number without a thermal pad? Is it the "SN74ACT08PWRQ1"? When I previously purchased the "SN74ACT08PWRQ1," it did not come with a pad.