MHB8080A
Intel i8080a tesque clone
Requires supply voltage: +5V, –5V and +12V
The date of production can be found from the datecode printed on the case.
... and supports MHB8224, MHB8228
A similar clone from Poland is Mcy7880.
MHB8224
Compatible with Intel 8224
MHB8228
Compatible with Intel 8228.
It is a single-chip system controller and bus driver for MCS-80 (MHB8080A). It generates all the signals needed for direct connection of memory and I/O component of the MCS-80 family.
The bidirectional bus controller provides a high system TTL fan. It also provides insulation of the 8080 data bus from memory and I/O. This allows for optimizing control signals, allowing designers to use slower memory and I/O. The bus insulation also ensures increased resistance of the system to interference.
8228 also generates the correct control signals that allow the use of multilateral instructions (eg call) in response to confirmation of the interruption by 8080A. This function allows large systems controlled by interruptions unlimited number of interruption levels.
spare connection of support circuits
In Wed 1983 is:
- Generation -5v
- Replace MHB8224