# SC516 Z80 Processor Card Kit for Z50Bus

A Z80 processor card for Z50Bus including CPU, RAM, ROM, and serial port

- **Seller:** [Small Computer Central](https://lectronz.com/stores/s-c-central), Stowmarket, England, UK
- **Price:** $47.00 (USD, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Retrocomputing, Kits
- **HS code:** 854290
- **Product page:** https://lectronz.com/products/sc516-z80-processor-card-kit-for-z50bus

## Options

**Printed circuit board colour**

- Black
- Red
- Blue
- Green
- White

**SC346 Serial to USB C adapter	**

- No thanks
- 1 x Serial adapter [Add $5.50]

## Links

- [Documentation](https://smallcomputercentral.com/)

## Images

![SC516 Z80 Processor Card Kit for Z50Bus](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTkwNDQsInB1ciI6ImJsb2JfaWQifX0=--5af2b7b84a7105cc37326ee80325829afd69bb44/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/SC516%20-%20Assembled%20-%203x2.jpg)
![SC516 Z80 Processor Card Kit for Z50Bus](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDA2NjQsInB1ciI6ImJsb2JfaWQifX0=--4d84f57f407dfe2d3132b802d3bbbb236eae0778/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/USB%20serial%20Adapter%20A%20-%20w1359.jpg)
![SC516 Z80 Processor Card Kit for Z50Bus](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTkwNDgsInB1ciI6ImJsb2JfaWQifX0=--69eee8c125c124b5583e7c8ae01e02bc86d9dd27/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/SC516%20-%20PCB%20colours%20-%203x2.jpg)
![SC516 Z80 Processor Card Kit for Z50Bus](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTkwNTIsInB1ciI6ImJsb2JfaWQifX0=--dc586805de3de7a6f336291bb8f86d261e3629fc/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/SC501+502+503+506%20-%20Black%202%20-%203x2.jpg)

## Description

This is a Z80 processor card for Z50Bus. It contains a Z80 CPU, ROM, RAM, clock oscillator, and a simple serial port. Just add a backplane and a power/reset card to get started.

SC527 is an alternative to SC516 and has been created due to supply problems with some SC516 components.

### Features

- Z80 running at 7.3728 MHz
- 128k bytes RAM (second 64k not easy to use, so best consider it to be 64k usable)
- 32k bytes ROM, which can be paged out to give 64k bytes of RAM
- Simple bit-bang serial port to get you started
- LiNC Z50Bus header plug
- LED for power and status indication
- Runs the Small Computer Monitor, with ROM BASIC and the CP/M loader included
 
The onboard LED can flash results of the self-test, so a serial port or RAM problem will not look like a dead processor.

### The Kit

The kit contains everything you need to build the card, except solder, tools, and cleaning materials. To use the completed card you require a backplane (eg. SC501) and a power/reset card (eg. SC502), a USB to serial adapter (5-volt power and 5-volt signals), a computer, and a terminal program, such as Tera Term.

If you have any doubts about sourcing a suitable USB to serial adapter, you might like to include this option with your kit.

### Documentation

This product has a user guide and an assembly guide. The Small Computer Monitor has a user guide and a detailed tutorial. The documentation can be found at [www.smallcomputercentral.com](https://smallcomputercentral.com/)

### Related items

- SC516 - Printed circuit board on its own
- SC501 - Backplane
- SC502 - Power/reset card
- Components, spares, and accessories

### Notes

- This product is supplied as a kit of parts that require assembly.
- It is your responsibility to pay any import duty or taxes charged by your home country.
- This design is made with the permission of LiNC (designers of the Z50Bus).
- This product is designed for hobby use and is not suitable for industrial, commercial, or safety-critical applications.

## Shipping policy

Products usually ship within 3 days