SAM Clock
Peripheral
Submitted by Stefan Drissen on Thursday, May 17, 2018 - 21:35.
Publisher
Description
Fabled clock interface that never appeared for sale.
The Protoype and PCB's exist with a passing-through Euroconnector device to provide a real time clock like the SamBus and Dallas Clock devices.
Clock is an OKI chip so SamBus compatible, thus should work with MasterDOS and B-DOS.
Packaging
Instructions
| id | type |
|---|---|
| IC1 | 74LS138N |
| IC2 | Oki M6242B |
| C1 | 15pF |
| C2 | 5 - 35pF variable |
| TR1 | C547B |
| TR2 | C557B |
| R1 - R2 | 20K |
| D1 - D4 | 1N966A |
| Y1 | XTAL 32.768 KHz |
| Battery | CR3032 |
Trivia
Lack of clocks were the source of much complaining on the Sam Users Mailing List