Overview The D8254 is a programmable interval timer/counter, binary compatible with industry standard 82C54. The D8254 solves one of the most common problems in any micro-computer system, the generation of accurate time delays under software control
Overview The D8259 is a soft Core of Programmable Interrupt Controller. It is fully compatible with the 82C59A device. The D8259 Core manages up to 8-vectored priority interrupts for processor. Programming it to cascade allows for up to 64 vectored
Overview The D8255 is a programmable I/O device which is designed for use with all Intel and most other microprocessors. It provides 24 I/O pins which may be indi-vidually programmed in 2 groups of 12 and used in 3 major modes of operation: Mode 0
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