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Part Number: 74LS, Maunfacturer: Motorola, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. 74LS datasheet, 74LS pdf, 74LS data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, 3-STATE Octal D-Type Transparent Latches and. products and disclaimers thereto appears at the end of this data sheet. 74LS SOP – NS. Tape and reel. SN74LSNSR. 74LS Tape and reel.

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Relay latching in AT89C51 based circuit You people are very helpful, Thanks.

74LS373 Datasheet PDF

Latest posts by Frank Donald see all. Problem with 74LS latching! PV charger battery circuit 4. Enable gates pin 11 74ps373 2. AF modulator in Transmitter what is the A? If you like I will draw the schematic for you. Thanks also for reminder on LED driver, I had dropped down to logic states!

The IC 74LS is a transparent latch consists of a eight latches with three state outputs for bus organized systems applications.

Similar for other switch input. It doesnt latch in HIGH state. CMOS Technology file 1. If you have CD, the remaining 2 gates can be used to combine the 2 switches in one.

74LS373 – Octal Transparent Latch 3 State

OE is held tied to ground. Dstasheet have 5V on D, but only get 3. What datwsheet the function of TR1 in this circuit 3. Frank Donald is an Electronics and Communication Engineer who loves building stuff in his free time. Notify of all new follow-up comments Notify of new replies to all my comments. Here is the Link for the datasheet kindly take a look at the electrical characterstics, hope this helps.


These small chips were 18 or 24 pins? Any other idea is also welcomed. As we all know the operation of flip flop that any input to the D pin at the present state will be given as output in next clock cycle.

Last edited by KerimF; 27th August at This single chip solution plus solenoid drivers worked very well Therefore almost every post I write would usually be updated several times till it reaches its saturation: But when the Latch Enable Pin was pulled low, the data will be latched so that the data appears instantaneously providing a Latching action.

PNP 74ps373 not working 2. Distorted Sine output from Transformer 8. The current I1, R7 and Q2 replace the push-button switch in order to simulate the circuit.

74LS Datasheet(PDF) – TI store

Do I need pull up resistors or does this sound like bad chips. This means that while your Enable is active and in your circuit it is always active – pin 11 high then the data presented to an input will always immediately get reflected to the output.

Synthesized tuning, Part 2: Part and Inventory Search. The time now is How do you get an Datadheet design to market quickly?


The only potential datasueet is both switches operating together as the output becomes indeterminate. They were a great introduction to simple logic and hardware which is a bit lost in todays massive chips.

Last edited by sharikbaig; 27th August at Also I may not reply at time.

Place data on input pin 3 – i. Need to either set LE low to latch the input or choose different latch. Hierarchical block is unconnected 3.

Our main server could be out of service anytime. How reliable is it? Originally Posted by kripacharya. Compare latch based and register based design 5. Digital multimeter appears to have measured voltages lower than expected. Choosing IC with EN signal 2. I will get ic’s by day after tomorrow, will try your schematic and update you soon.

The led in the circuit is always Off. Frank Donald October 27, 2 Comments. Here is an example http: Being not a machine, I always do silly mistakes or miss important things. Help with Latch IC 74LS based latching ciruit I actually made a similar project back in the 80’s when experimemting with programmable logic the good old days!