8 Bit Buffer

A project log for Serial Transmitter Using Discrete Parts

An asynchronous serial transmitter using only mosfets, resistors, capacitors, and diodes as building blocks.

eric-ljungquistEric Ljungquist 02/21/2022 at 07:280 Comments

I don't have much to say for this section. I only included it as I had taken the above picture showing some early testing. In the image I am testing that each latch was holding data correctly. I didn't have any issues with using dynamic logic to store the data. In testing I found that the value would only bleed off or on through the transistor switch after two to five minutes. Much longer than what was needed for correct operation.

The 8 bit data buffer is implemented the same as what is outlined in the project log "Basic Building Blocks" under the Data Latch heading. The circuit is just copied and pasted eight times over.