Tindie

Z80 CPU v2.1 for Enhanced Bus RC2014

(5 Reviews)

Z80 CPU Module for RC2014 featuring Enhanced Bus headers

Designed by RFC2795 Ltd, Ships from United Kingdom

Z80 CPU Module for RC2014 featuring Enhanced Bus headers

What is RC2014? RC2014 is a simple 8 bit Z80 based modular computer. It is inspired by the home built computers of the late 70s and computer revolution of the early 80s. It is not a clone of anythi...

What is RC2014?

RC2014 is a simple 8 bit Z80 based modular computer. It is inspired by the home built computers of the late 70s and computer revolution of the early 80s. It is not a clone of anything specific, but there are suggestions of the ZX81, UK101, S100, Superboard II and Apple I in here. It typically has 8K ROM, 32K RAM, runs at 7.3728MHz and communicates over serial at 115,200 baud. As a bare minimum, you will need a CPU, ROM, RAM, Clock and Input/Output module.

This module is an alternative to the standard Z80 CPU Module and features a header that can take advantage of the extra Z80 signals that are not normally used on a regular RC2014

Which Z80 CPU Module Do I need?

The standard Z80 CPU Module works great with the RC2014, and the signals that are not normally required are bought out on a header at the top of the module for you to connect wires to if needed. However, if you are using modules that take advantage of the Enhanced Bus, such as the SD Memory Dump Module, and also using Backplane Pro, this module gives you a neater more foolproof alternative.

The WAIT, NMI, BUSRQ and INT signals are pulled high via 10k resistors, so there is no need to add or remove links depending what other modules you are using.

The PCB can also accommodate a ZIF socket (not supplied) if you anticipate swapping out your CPU

This module works fine with either the standard bus on the Backplane 8/5 with the single pin header supplied, or with the Backplane Pro by using the double header supplied with the Backplane Pro

What do I get?

PCB Only - Go on, guess what you get with this!
Full Kit - PCB, 40 pin DIL socket, Z80 CPU, 40 pin single row header pins, 100nf decoupling capacitor, 4 x 10k pull up resistors

Review Breakdown

Average Ratings

Product: (5.00)

Documentation: (4.00)

Shipping: (5.00)

Communication: (4.00)

Jim | Feb. 18, 2019

The heart of a great system

The RC2014 is a great idea that has built a huge following for a reason. The latest CPU board brings out some of the CPU signals that are enabling things like the z80ctrl card. Great for the hobbyist. Easy to build.

Birko | June 15, 2018

Amazing product quality

The quality of the PCB is amazing and it is very easy to solder. It is always fun to build such a nice part.

Mr C | Aug. 16, 2017

simply does what it needs to

The is basically just the Z80 with most of the bus decoding etc taken care of by the modules themselves, as a result this has to be one of the simplest boards to build. start with this one!

PCB quality is good, with decent solder resist, but in common with most of the modules the 39th pin is very close to the edge of the board

Eric | June 14, 2017

Great

The quality is top.
Worked on first power-up (once you remember to hit reset ! )
Modularity is maximum.
I'll be using it for learning hardware development, drawing schematics, routing PCBs, and such.

Richard | May 21, 2017

Well thought out kit, easy to assemble.

My aim is to produce a CP/M computer using the RC2014. I like the way it is designed in modules so that one can pick and mix. I have the Backplane pro and and have now completed the Z80 c2.1. It went together without any trouble and works a treat. Fantastic kit and well supported by Spencer.