2716 eprom integrated circuit, dual inline package. 21 volt programming. Make sure your programmer can program 21 volt devices.
Datasheet
These were purchased in China. All tested good on a Xgecu Pro TL866II+ eprom programmer for Pin Test and Blank Check capabilities. See the pics below.
We can program your eprom for a small fee. Just hit the Ask a Question Button on this item. We have many binary files going all the way back to the 1970's - arcades, jukeboxes, pinballs and slot machines. Or send us your binary file.