The ChipList, by Adrian Offerman; The Processor Portal

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Intel i8085A/i8085AH processor

Identification


Model name: i8085A/i8085AH.
Supplier: Intel.
Component class: CPU.

Generation


Generation: 8080.

Compatibility


Intel i8080 CPU upward instruction compatible.
Extra instructions:

  • SIM (Set Interrupt Mask)
  • RIM (Read Interrupt Mask)

Extra interrupt lines, including NMI (Non-Maskable Interrupt).

Architecture


8 bit data bus.
16 bit address bus.
Data and address bus are multiplexed.
Separate address space for instructions and data (Harvard architecture).

Clock speed


Clock speed Model Periphery Manufacturing technology
3 MHz Intel i8085A   NMOS
  Intel iM8085A CPU military (-55 - 125 °C) NMOS
5 MHz Intel i8085AH-2 CPU   HMOS
6 MHz Intel i8085AH-1 CPU   HMOS
  Intel iM8085AH CPU military (-55 - 125 °C) HMOS

Physics


Number of transistors: 6200.

Packaging: 40 pin CerDIP.

Dates


Introduction date: 1976.


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