These printed circuit boards can be used to build a range of RCBus (80 pin) retro computers.

I hold sufficient stock of most boards to cover all likely orders. Stock levels are only shown where there is very limited stock available.

Full details of each board can be found by looking at its separate kit listing, but here is a summary:

• SC701 - Backplane, 6+1 slot, 5 volt power input
• SC702 - Backplane, 6+1 slot, no power input
• SC703 - Power module, 8 to 15 volt input
• SC704 - I2C bus master module
• SC705 - Serial 68B50 ACIA module
• SC706 - Z80 CPU module, 128k + 128k
• SC707 - Z80 memory module 128k
• SC708 - Z80 single board computer module
• SC709 - Backplane, 12+1 slot, 5 volt power input
• SC710 - Backplane, 12+1 slot, no power input
• SC711 - Prototyping module
• SC712 - Power module, 5 volt input
• SC714 - Z80 memory module, 512k + 512k
• SC715 - Compact Flash module
• SC716 - Z80 SIO/2 dual serial module
• SC717 - Z80 PIO parallel I/O module
• SC718 - Z80 CTC counter/timer module
• SC719 - Digital I/O module
• SC720 - Z80 RomWBW CP/M SBC/motherboard
• SC721 - Z180 memory module, 512k + 512k
• SC722 - Z180 CPU module, 18.432MHz
• SC723 - Backplane 3, 5 volt power input
• SC724 - Breakout prototyping module
• SC725 - Z80 SIO/2 + Z80 CTC module
• SC726 - Clock oscillator module
• SC727 - Real time clock module
• SC728 - Module riser
• SC126 - Z180 RomWBW CP/M SBC/motherboard

Documentation

The documentation can be found at www.smallcomputercentral.com

Compatibility

These printed circuit boards conform to the RCBus specification v1.0

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.

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
• SC131 Pocket-sized Z180 RomWBW CP/M computer

Notes

• 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.

Products usually ship within 3 days