Found 3 alternatives for ATF1508AS-10QU100 by Microchip Technology. Embedded Cplds Complex Programmable Logic Devices — 100-BQFP.
EE PLD, 10NS, 64-CELL PQFP100
EE PLD, 12NS, 64-CELL PQFP100
EE PLD, 7.5NS, 96-CELL