Here is a great example of an Intel 8253 Processor from 1977. Several shots are shown...enjoy! : r/electronics
8253 Programmable Interval Timer - EEEGUIDE.COM
Here is a great example of an Intel 8253 Processor from 1977. Several shots are shown...enjoy! : r/electronics
8253 Programmable Interval Timer - Datasheet
8253 Timer In software programming of 8085, it has been shown that a delay subroutine can be programmed to introduce a predefined time delay. The delay. - ppt download
1 x Genuine P8253-5 INTEL = P8253C-5 8253 5Mhz Programmable Interval Timer IC | eBay