Nsignetics 25120 write-only memory books

Now it seems that the previously anonymous practical joker has identified himself and stepped forward with new information to correct and complete the story. A subreddit dedicated to news, articles and general discussions related to electronic systems and circuits. The spoof data sheet was included in the signetics data book intentionally. Signetics 25120 9046xn random access writeonlymemory. Our pr guy, roy twitty, caught the fever and prepared a hilarious press release to hit april 1, 1973.

The joker behind the signetics 25120 writeonly memory. Now and in years past, electronic engineers and hobbyists alike have enjoyed the classic 1972 april fools joke by signetics of the signetics 25120 writeonly memory chip. Fools joke by signetics of the signetics 25120 writeonly memory chip. According to this wikipedia article, it was created by john jack curtis. Signetics writeonlymemory datasheet pdf link reddit. The signetics 25000 series 9c46xn random access write. One of my tasks in the signetics mos marketing group was to create data sheets for new products.

In 1975 they were bought by philips semiconductors, which is now nxp. Initially there seemed to be no practical use for a memory circuit from which data could not be retrieved. Remove read only write protection on micro sd 2gb memory card. Writeonly memory has been one of the best practical jokes on the. Writeonly memory wom is the opposite of readonly memory rom. The joker behind the signetics 25120 writeonly memory chip hoax. De1soc computer system with nios ii for quartus ii 15.

Signetics 25120 fully encoded, 9046 x n, random access. By some definitions, a wom is a memory device which can be written but never read. The 25120 is easily cooled by the employment of a six foot fan. The write only memory was a fake part signetics introduced april fools day many decades ago. My better firmware faster seminar will teach your team how to operate at a worldclass level, producing code with far fewer bugs in less. We passed the writeonly memory data sheet around the office and to our salesmen and found it had possibilities. Signetics 25120 fully encoded, 9046 x n, random access writeonly memory cool product report. Signetics shortly printed up new corrected databooks, without any woms, and. Out of frustration with the long and seemingly useless chain of approvals required of component specifications, during which no actual checking seemed to occur, an engineer at signetics once created a specification for a writeonly memory and included it with a. A linux kernel module, that implements a driver for signetics 25120 write only memory wom. Interestingly the address in the datasheet, i think, was the original site.