NEC D71059 overview
NEC D71059 MOS Integrated Circuit | Interrupt Control Unit µPD8085AH compatible (CALL mode) µPD70108 (also known as the V20 TM)/µPD70116 (also known as the V30 TM) compatible (vector mode) µPD71059-10 can be connected with the µPD70108-10 and µPD70116-10 with no wait states Eight interrupt req...
What is NEC D71059?
NEC D71059 MOS Integrated Circuit | Interrupt Control Unit µPD8085AH compatible (CALL mode) µPD70108 (also known as the V20 TM)/µPD70116 (also known as the V30 TM) compatible (vector mode) µPD71059-10 can be connected with the µPD70108-10 and µPD70116-10 with no wait states Eight interrupt req...
Product details
Manufactured byNEC
Product groupModules
DescriptionNEC D71059 MOS Integrated Circuit | Interrupt Control Unit
Key FeaturesµPD8085AH compatible (CALL mode) µPD70108 (also known as the V20 TM)/µPD70116 (also known as the V30 TM) compatible (vector mode) µPD71059-10 can be connected with the µPD70108-10 and µPD70116-10 with no wait states Eight interrupt request inputs 64 interrupt request inputs (extended mode) Interrupt request inputs can be either edge- or level- triggered Request masking possible through masked registers Programmable priority levels Polling operation possible Single power supply CMOS construction
OverviewThe µPD71059 is a programmable interrupt control unit (ICU) for use in microcomputer systems. After processing interrupt request input signals on eight different inputs, each assigned a priority level, the µPD71059 relays the request with the highest priority to the CPU. In extended mode it is possible to use multiple µPD71059s to permit processing of up to 64 interrupt request lines. The µPD71059 offers the added benefit of low power consumption due to its CMOS construction.
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