Main description
The Z88 Extender card which has the gold edge connector for the Z88, is supplied as a 'bare board,' all other components to be ordered separately. It has the space to fit
- 2 x 34 way connectors which can be used to monitor the Z88 signals and connect to an external board,
- 1 x 32 way DIL connector for a header to use with an EPROM programmer or a zero-insertion socket and
- 1 x Z88 Card connector.
When the Extender card is used with a Z88, the 'Card Flap' needs to be modified, to allow the PCB to go through the flap.
Why was it built?
Some developers have expressed the need of developing hardware like external cards to read the new flash chips, or different communication devices using a modern approach. The high cost of getting an external card made has put some users off from taking this further. It is hoped that this card will enable those people to take their ideas further, by using this card as a stepping stone to the finished article.
Components required
As this card can be used for different purposes, not all the components are required, nor can one card be built to use all the functions. Non-standard components are available from us, or faulty Z88 motherboards and memory cards may be canabilised to extract the Z88 card connectors and memory card cases. The standard components shown here are linked to the Farnell site. If you would prefer us to get these for you, we can and will add a 'handling fee' to cover our costs.
Function required | ||||||
EPROM Programmer | ||||||
Programming a Z88 card with an EPROM programmer | ||||||
Testing a prototype board with the Z88 | ||||||
Testing a Z88 Card | ||||||
Using an ICE | ||||||
Components required | ||||||
Z88 Plastic Card Case | Rakewell | |||||
Z88 Modified Card Case | Rakewell | |||||
Z88 Modified Card Flap | Rakewell | |||||
Z88 Card connector | Rakewell | |||||
HEADER, IDC, STRAIGHT, 34WAY x 2 | 109-6992 | |||||
CABLE ASSY, RIBBON 34WAY | 101-2214 | |||||
SOCKET, IC, ZIF, 32WAY | 113-6782 | |||||
HEADER, STRAIGHT, 16WAY x 2 | 124-8124 | |||||
HOUSING, 26AWG, 8WAY | 109-8717 | |||||
SMALL BIT OF WIRE or | ||||||
RIBBON CABLE, IDT, 8WAY | 131-3461 |
Circuit Diagram
The circuit diagram of this card can be viewed by clicking here (which will open in a new window).