MCS-80 Test Boards For Sale



These MCS-80 test boards are intended to facilitate testing of Intel 8080A processors (and compatibles).

The board consists of the base components of a MCS-80 system:

8224 Clock generator: Provides 1.11MHz clock that is slow enough for all kinds of 8080 CPUs

8228 System Controller and Bus Driver: Handles I/O and MCS-80 system functions

40-pin ZIF socket: For the 8080 CPU – provides easy replacement of the CPUs.

2716 2KB EPROM: Holds the test program. This program handles 4 push buttons – as input – and 8 LEDs – as output devices.


The board requires a single +5V power supply (450mA) provided through a mini-USB connector. The board contains the DC-DC converters needed for providing the -5V and +12V powers required by the CPU. Power can be supplied by a typical USB wall-charger or even the USB port on most computers.

There is a power failure indicator and protection circuit implemented on the board. When the input power level is less than 4.2V the failure indicator LED is illuminated and the +12V level is limited to 4V.

Address, data, chip select, control and power lines are attached to the three 16-pin expansion headers, so that the board may be used for other projects or testing purposes.

 Expansion boards for Zilog Z80, Intel 8085 and National NSC800 Processors available here

Available now for $124.95 (FREE Shipping worldwide) 

Download the MCS-80 Test Board User Manual here

You may also purchase the entire set, a MCS-80 Board, and a set of 3 expansion boards, one each for the Zilog Z80, Intel 8085 and National NSC800 Processors.  Individually they are $215, as a set, $199.95 with FREE Shipping Worldwide.

MCS-80 Test Board with set of 3 Expansions.