This part is a kind of semiconductor called AmPAL22V10A.

Function of this product has 24-Pin TTL Versatile PAL Device.

Manufacturers : Advanced Micro Devices

Image and pinout :

Some of the text within the PDF file :

FINAL COM’L: -7/10/15 PAL22V10 Family, AmPAL22V10/A 24-Pin TTL Versatile PAL Device DISTINCTIVE CHARACTERISTICS s As fast as 7.5-ns propagation delay and 91 MHz fMAX (external) s 10 Macrocells programmable as registered or combinatorial, and active high or active low to match application needs s Varied product term distribution allows up to 16 product terms per output for complex functions Advanced Micro Devices s Global asynchronous reset and synchronous preset for initialization s Power-up reset for initialization and register preload for testability s Extensive third-party software and programmer support through FusionPLD partners s 24-Pin SKINNYDIP, 24-pin Flatpack and 28-pin PLCC and LCC packages save space GENERAL DESCRIPTION The PAL22V10 provides user-programmable logic for r [ ... ]

AmPAL22V10A PDF Datasheet Download