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(25) MC14021BCP CMOS CD 4021-type 8-STAGE STATIC SHIFT REGISTERS, CMOS DIP, NOS ICs New, old stock (NOS) CMOS DIP ICs. The MC14021BCP CMOS ICs are equivalent to the CD4021, CD4021B, CD4021BCP, MC14021B, SGS4021B, HCF4021B, HEF4021B, TC4021B and other CMOS 4021 equivalent ICs. The 4021 static shift registers have many electronic uses! The 4021 is typically used for asynchronous parallel input or synchronous serial input / serial output data queueing, parallel-to-serial conversions, delay lines, frequency dividers, and general purpose register designs. 4021 shift register ICs are really neat for designing sound effects generators (e.g. sirens, warblers, chirpers, etc.), light effects generators (e.g. "flickering flame" electric lights), random number generators, pseudorandom number generators, random noise generators (e.g. white noise, pink noise), delay lines, and theremins (i.e. science fiction movies / horror movies eerie special sound effects) of many different types using its very advantageous parallel and serial inputs. Its special effects light flickerer applications are great for Christmas decorations/displays, fake fireplaces, horror houses, school science projects, romantic settings, toys, games, gadgets, etc., making it a favorite IC for crafts as well. Random noise generators and random light generators are also very useful for fooling potential burglars and home invaders by randomly generating sounds and/or lights just like people would do if present there at the time, and the 4021 can be coupled with ultrasonics to produce pest controllers that because of the unpredictability of the random nature of the sound bursts and/or light flashes, it is almost impossible for pests to anticipate and get used to - much better than the commercial ultrasonic pest controllers that periodically transmit a short "ultrasonic" beep (actually, about 15 KHz, which just borders on the ultrasonic) which pests soon get used to. I both design and collect sound effects and light effects circuits, including theremin circuits, so if you have any circuit designs you would like to share with me or know of a good website or book that has these circuits, please let me know. The 4021 also has great music applications (e.g. echo, distortion, eerie effects, background noises, editing, etc.). 4021s can be expanded by cascading to produce static shift registers much larger than 8-stage with expanded parallel inputs for high-resolution applications way beyond the 8-bits parallel input of a single 4021. Use a RAM, ROM, FPGA or other programmable memory (not included) to dump your sound or light program into the 4021 and then shift it out serially, with the option of adding your own changes, deletions and additions editing along the way. You should have countless hours of experimental fun and great practical uses - great for your electronic devices, science projects and science fairs. Comes in antistatic tubes. NOTE: Later availability not guaranteed. LIMITED QUANTITY. Seller listing codes: LD061, LR094-S01, LS000-R00, MM000, CC000. (We do not proofread any ads submitted by members) |
augusta.mann@desmoines-classifieds.com (Augusta Mann) for more information. Your emails will be instantly forwarded to the poster's private address.
