Order Number DM54LSJ, DM54LSW, DM74LSN or DM74LSWM. See Package Number J20A, M20B, N20A or W20A. March DM74LS/. DM74LSN. N20A. Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS- , ” Wide. DM74LSWM. M20B. Lead Small Outline Integrated. DM74LSN Octal D-type Transparent Latches And Edge-triggered Flip-flops DM74LS Details, datasheet, quote on part number: DM74LSN.

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Or there is no delay time, just following the sequence of 2. A buffered output control input can be used to place the.

National Semiconductor

They are particularly attractive. Working with Fluctuating Input Supplies: Your name or email address: That is, the old data can be retained or new data can be entered even while the outputs are OFF. Nov 22, 2.

I have tried every combination of OC and g in order to see outputs matching the inputs. Nov 22, 1. When C goes low, the last state is held. May 19, 1, 1, Nov 22, 4.

National Semiconductor – datasheet pdf

I wasn’t driving my inputs with anything, and thus my LED’s were glowing I guess the output is high by default if there is nothing driving the input. Do you already have an account? When it is high, the latch is transparent, as in, what is on the input is on the output. A buffered output control input can be used to place the eight outputs in either a normal logic state HIGH or LOW logic levels or a high-impedance state.


That is, the old data can be. I think for what you are doing it should be tied low all the time. Nov 22, 3. In the high-imped- ance state the outputs neither load nor drive the bus lines significantly. Aug 23, 6, OC output control enables the output drivers when it is low. Here’s an overview of the major players in the new RTOS world. The output control does not affect the internal operation of the latches or flip-flops.

3-STATE Octal D-Type Transparent Latches And Edge-Triggered Flip-Flops

Anyway, for some reason I can’t figure out how to properly latch data inputs to the LSN. Devices also available in Tape and Reel. Any help would be much appreciated!! It is a pretty simple chip.

However I am not getting this result. The eight flip-flops of the DM74LS are edge-triggered. When the enable is taken LOW the output will be latched at the level of the data that was set up. Q outputs will be set to the logic states that were set up at.


Home – IC Supply – Link. Help with Induction Heater Posted by Nfiltr8 in forum: Nov 22, 2 0. That is what my confusion was. Thanks guys, I figured it out. Q outputs will follow the data D inputs. You May Also Like: Yes, my password is: No, create an account now. The high-impedance state and.

C is the latch enable. The high-impedance state and increased high-logic level drive provide these registers with the capability of dattasheet connected directly to and driving the bus lines in a bus-organized system without need for inter- face or pull-up components.

Datasheet Link Thanks in advance Marc.