Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise . 74LS21 datasheet, 74LS21 pdf, 74LS21 data sheet, datasheet, data sheet, pdf, Hitachi Semiconductor, Dual 4-input Positive AND Gates. SN54/74LS DUAL 4-INPUT AND GATE. LOW POWER SCHOTTKY. J SUFFIX. CERAMIC. CASE N SUFFIX. PLASTIC. CASE 1. 1.

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All Datasheett – This is basically a surplus store with both new and used components. Here’s some of the stuff we use and recommend. Datasheet Movexx V 2 Specifications Documents. Popular Products Tinkduino Leo.

74LS21 Datasheet(PDF) – TI store

Motorola and are registered trademarks of Motorola, Inc. Fairchild Semiconductor – They used to have a good collection of very presentable datasheets but it looks like most of the 74LS ones have been removed. These will be fixed someday, maybe. Other Atmel microcontroller documents and links AVR microcontroller interrupt vectors – A list of the interrupt vector names for the AVR microcontrollers listed above. Tinkbox is currently in beta mode.

If you can’t find a non-scanned copy dataseet else, get it from here. Arduino basics with Tinker Danica. Implements a modulo 5 up-down counter with binary outputs and decoded 1-of-5 outputs. Their inventory changes a lot so you might not be able to buy the same things six months datashheet now.

74LS21 Datasheet

Some of the documents may not be relevant to the current semester’s project but are left here for reference purposes. The notes below mostly apply to both microcontrollers even if the description of the document only mentions one of them. Motorola makes no warranty, representation daatasheet guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically datasneet any and all liability, including without limitation consequential or incidental damages.


S – Controls an LED with a switch.

Implements a 3-bit up-down binary counter with binary outputs and seven-segment display outputs. Ql5 datasheet pdf -? Skip to main content.

However they do have a PDF of a pocket version of their logic data book. It’s usually easier to find parts in that catalog than online.

Our office is open: Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, datasueet or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.

IC Datasheet: 74LS21

These devices contain two independent 4-input gates each of which performs the logic AND function. S – Displays a sequence of hexadecimal numbers on a seven-segment display using an internal timer and interrupts for delays. None of datzsheet sites are particulary easy to use if you don’t know what part you are looking for.


They are all copyrighted by someone but we’re not going to worry about that. All dataeheet should read this before starting construction of your project in the lab. You can also call us at or send us a message through our Facebook page. You can also visit their store at Oxnard St. Questions, corrections and comments about the content of this page should be sent to Allan Weber.

The administrators are 744ls21 migrating contents to our new home. However they are still present in the our stock of parts so if you want to use them you can. Motorola does not convey any license under its patent rights nor the rights of others.

Other Services Custom Projects. Modern Device – They seem to have a interesting variety of components including many sensors and related components.

Many of their files are scans of pages from their printed databooks and the images come out looking pretty bad. However the size of the catalog sometimes make it hard to find things.

If they have something you need, you can probably get it at a good price, but it’s sometimes hard to find things. Part 1 and Part 2.

Newark and Mouser Electronics – These two are major suppliers to the electronics datasheet with very large inventories. Engineered in the Philippines. Motorola Literature Distribution; P.