TIBPAL16R6-20M and TIBPAL16R8-20M are Not Recommen.
Texas Instruments
TIBPAL16R6-20M - HIGH-PERFORMANCE IMPACT PAL CIRCUITS
TIBPAL16R6-20M and TIBPAL16R8-20M are Not Recommended for New Designs TIBPAL 16L8-15C, TIBPAL 16R4-15C, TIBPAL 16R6-15C, TIBPAL 16R8-15C TIBPAL 16L8-2.
