Part Number: 74LS90, Maunfacturer: Motorola, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. The 74LS90 is a simple counter, i.e. it can count from 0 to 9 cyclically in its natural mode. It counts the input pulses and the output is received as a 4-bit binary. The SN54/74LS90, SN54/74LS92 and SN54/74LS93 are high-speed. 4-bit ripple type counters partitioned into two sections. Each counter has a di- vide-by-two.

Author: Mubei Vole
Country: Saint Kitts and Nevis
Language: English (Spanish)
Genre: Finance
Published (Last): 16 September 2007
Pages: 375
PDF File Size: 7.12 Mb
ePub File Size: 17.55 Mb
ISBN: 912-3-12671-195-5
Downloads: 64370
Price: Free* [*Free Regsitration Required]
Uploader: Terr

SPI Module of Arduino.

The other high counts can be generated by connecting two or more ICs. For example, datashret two are connected in a manner that input of one becomes the output of other, the second IC will receive a pulse on every tenth count and will reset at every hundredth count.

National Semiconductor

This enables the cascade connection of the inbuilt counters. These modes are set by changing the connection of reset pins R 1 – R 4.

If you are interested the project is at: Each counter has a di- vide-by-two.

Mr Xatasheet 28, I have all the components in a breadboard and have even dayasheet it on multisim 6. Interface SD Card with Arduino. Output 4, BCD Output bit 3. You must log in or sign up to reply here. Virgin Galactic — Commercial Space Flight. This Datasheer Meter allows to ic 74ls90 datasheet incredibly small inductances making it perfect tool for making all types of RF coils and inductors.


The outputs ic 74ls90 datasheet always high. Bi-quinary is a system for storing decimal digits in a four-bit binary number. Choosing Battery for Robots. Interface GPS with Arduino.

Share This Page Tweet. What is Web Browser. Choosing Motor For Robots. Skip to main content. Electro Tech is an online community with overmembers who enjoy ic 74ls90 datasheet about and building electronic circuits, projects and gadgets.

74LS90 Datasheet(PDF) – National Semiconductor (TI)

PLease I wanna make the 74ls90 work as a Decade 6 Counter if you 74os90 any ic 74ls90 datasheet about this please datasheft me. Samcheetah, the logic inputs always need H or L level. It can be used as a divide by 10 counter by connecting Q A with clock input2, grounding all the reset pins, and giving pulse at clock input1. Anyone got anymore ideas? Supply voltage; 5V 4. Still I get all the outputs as high. Your name or email address: Daasheet is an irreplaceable tool for troubleshooting and repairing electronic equipment by determining performance and health of electrolytic capacitors.

Supply voltage; 5V 4. Output 2, BCD Output bit 1. The 74LS90 is a simple counter, i. By connecting Q A with input1, can be used for BCD counting whereas by connecting Q D with input2, it can be used for bi-quinary counting. Bi-quinary is a system for storing decimal digits in a four-bit binary number. This high-density System-in-Package SiP integrates controller, power switches, and support components. Thus this system can count from 0 to 99 and give corresponding BCD outputs.


Datasyeet GPS with Arduino. Output 1, BCD Output bit 0.


I built that circuit in electronics worbench and it acts ic 74ls90 datasheet crazy. A pulse is also generated probably at pin 9 as it resets its output to The chip can count up to other maximum numbers and return to zero by changing the modes of It is a very useful bench test equipment for testing and finding out the frequency of various devices with unknown frequency such as oscillators, radio receivers, transmitters, function generators, crystals, etc.

The binary output is reset to at every tenth pulse and count starts from 0 again. Arduino based GPS receiver. Output 3, BCD Output bit 2. The bi-quinary code was used in the abacus. The binary output is reset to at every tenth pulse and count 74ps90 from 0 again.