# SC719 RCBus-80pin Digital I/O module kit

This module provides 8 inputs and 8 outputs, each with an LED indicator, designed for RCBus

- **Seller:** [Small Computer Central](https://lectronz.com/stores/s-c-central), Stowmarket, England, UK
- **Price:** $22.00 (USD, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Retrocomputing, Kits
- **HS code:** 854290
- **Product page:** https://lectronz.com/products/sc719-rcbus-80pin-digital-io-module-kit

## Options

**Printed circuit board colour**

- Red
- Blue
- Green
- Black
- White

## Links

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

## Images

![SC719 RCBus-80pin Digital I/O module kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTIwNDcsInB1ciI6ImJsb2JfaWQifX0=--cd3b547ae5ad48ae8a3c50761d923b0b7738bb25/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-06-07T21-3A07-3A08.704Z-SC719-20--20Assembled-20A-20--203x2.jpg)
![SC719 RCBus-80pin Digital I/O module kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTIwNDgsInB1ciI6ImJsb2JfaWQifX0=--dd0e5b294fecc757201066cc521f3190311d601d/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-06-07T21-3A07-3A08.704Z-SC719-20--20Assembled-20B-20--203x2.jpg)
![SC719 RCBus-80pin Digital I/O module kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTIwNDksInB1ciI6ImJsb2JfaWQifX0=--f4971774581c868f5234b1011dd95692bcf8b462/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJwbmciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--605f1da017bcbb03ce31845cd0e81d97e3b3c574/2023-06-07T21-3A14-3A52.085Z-SC719_v1.0.0_Render_red_top-20x3.png)
![SC719 RCBus-80pin Digital I/O module kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTIwNTAsInB1ciI6ImJsb2JfaWQifX0=--0c21a05c1242494d365456bf923cee4e9cb0230d/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJwbmciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--605f1da017bcbb03ce31845cd0e81d97e3b3c574/2023-06-07T21-3A14-3A52.085Z-SC719_v1.0.0_Render_red_bottom-20x3.png)
![SC719 RCBus-80pin Digital I/O module kit](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTIwNTEsInB1ciI6ImJsb2JfaWQifX0=--256a0eedb682cbcc8ced34f277608a6da9b23fef/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-06-07T21-3A14-3A52.085Z-SC700-20--20System-20A-20--203x2.jpg)

## Description

The module has the following features:

- 8 digital inputs with LED indicators
- 8 digital outputs with LED indicators
- Header for all input and output signals
- Tight and configurable address decoding
- Simple to use from BASIC or assembler
- Compatible with RCBus 

### Documentation

The documentation can be found at [www.smallcomputercentral.com](https://smallcomputercentral.com/)

### Compatibility

This module conforms to the [RCBus specification v1.0](https://smallcomputercentral.com/rcbus/) for RCBus-2014 and RCBus-Z80.

The RCBus specification includes RCBus-2014 (both RC2014 standard 40-pin bus and RC2014 enhanced 60-pin bus) and also the full 80-pin RCBus. The 80-pin RCBus provides support for advanced Z80 features, such as the interrupt daisy-chain, as well as support for other processor families.

### The Kit

The full kit includes all the components needed to make the module, as shown in the first picture. Other modules and backplanes shown in the other pictures are not included. You will require tools, solder and cleaning materials to assemble this kit.

### Printed Circuit Board

The printed circuit board is available on its own [here](https://lectronz.com/products/pick-n-mix-boards-for-rcbus-80pin).

### Complete Systems

If you are looking for a complete system the following products might be appropriate.

* SC126 RCBus-80pin Z180 RomWBW CP/M Motherboard
* SC720 RCBus-80pin Z80 RomWBW CP/M Motherboard
* SC791 RCBus-80pin Z80 RomWBW CP/M Computer
* SC792 RCBus-80pin Z180 RomWBW CP/M Computer
* SC114 RCBus-40pin Z80 SCM & BASIC Motherboard
* SC131 Pocket-sized Z180 RomWBW CP/M computer

### 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 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