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 students should read this before starting construction of your project in the lab. S – Displays a sequence of hexadecimal numbers on a seven-segment display using an internal timer and interrupts for delays.

Questions, corrections and comments about the content of this page should be sent to Allan Weber. All Electronics – This is basically a surplus store with both new and used components. Output can be confirmed with an oscilloscope.

Datasheet – 74LS21 – And 4 Entradas

If you can’t find a non-scanned copy somewhere else, get it from here. If you’re having trouble, please go to Support or click on the Feedback button found at the bottom. Many of their files are scans of pages from their printed databooks and the images come out looking pretty bad. For information on the Freescale microcontrollers that were used in EE up until aboutand sample code for them, click here.

None of these sites are particulary easy to use if you don’t know what part you are looking for. Cdbe datasheet pdf – datasheet pdf Cdbe datasheet pdf Mega R3 Arduin Part 1 and Part 2.


Typical parameters can and do vary in different applications. These devices contain two independent 4-input gates each of which performs the logic AND function. If you are interested in purchasing electronic components for building projects, here are some links to places we buy parts from.

The “74LS” will find it in one of the more common logic family, and the “N” says to find a datasheey plastic package. All operating parameters, including Typicals must be validated for each customer application by customers technical experts.

Digi-Key – This is our other primary supplier.

It’s usually easier to find parts in that catalog than online. Dataaheet Information Free shipping. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur.

74LS21 Datasheet

Popular Products Tinkduino Leo. Skip to main content. Motorola Literature Distribution; P. How to Make Learning More Fun? These will be fixed someday, maybe. Not sure if they have minimum order amounts that may make it hard for the dattasheet but they are worth a look. On Semiconductor – I think they are mainly a distributer of ICs, not a manufacturer. Qlt datasheet pdf – datasheet pdf QLT datasheet, You can also visit their store at Oxnard St.


Other Services Custom Projects. Parts in stock – This is a list of most of the parts that the EE class has in stock for project construction. Jameco Electronics – We used to buy most of datasheft stuff from Jameco before they “improved” their web site. Texas Instruments – TI has a large collection of datasheets online, both for current chips and for datashete obsolete ones.

Arduino Pro Mini Box ; Phoenix, Arizona Modern Device – They seem to have a 74ls221 variety of components including many sensors and related components. Here’s some of the stuff we use and recommend. Engineered in the Philippines. S – Displays a sequence of hexadecimal numbers on a seven-segment display. The administrators are still migrating contents to our new home.

74LS21 Datasheet(PDF) – TI store

Implements a 3-bit up-down Gray code counter with binary outputs and the seven-segment display outputs the message “EE L”. They may have absorbed Motorola’s TTL product line, or at least their tech dafasheet.

Using the analog-to-digital conversion module on the ATmegaP microcontroller – An description of how the ADC module on the P works and how to configure it for doing conversions. This is collection of documents from a variety of sources for use by the students in EE Lx.