Part Number: 74LS, Maunfacturer: Motorola, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. These 8-bit shift registers feature gated serial inputs and an asynchronous clear. A low logic level at either input inhibits entry of the new data, and resets the first. 74LS datasheet, 74LS pdf, 74LS data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, 8-Bit Serial In/Parallel Out Shift Register.
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Output Short Circuit Current.
IC Datasheet: 74LS164 Data Sheet
Not more than one output should be shorted fatasheet datasheet 74ls164 time, and duration should not exceed one second. Also, why does the scope only show 2Vpp in one picture? Output mode is push-pull with at least 2mA sink capability. Datasheet 74ls164 know there is a pull down datasbeet a pull up in the raspberry pi when you configure the GPIO as input, but is there a pull down when you are in output mode?
Low Level Output Voltage. Fully Buffered Clock and Datasheet 74ls164 Inputs. Search field Part name Part description. Maximum Ratings are those values beyond which damage to the device may occur. In real I will put mosfets to control a datasheet 74ls164 led board.
Functional operation should be restricted to the Recommended Datasheet 74ls164 Conditions. Finding out where that offset comes from should be the absolute first priority here. The register was clocking multiple times because the clock signal wasn’t enough clean. Do you have an datasheet 74ls164 What am I doing wrong?
High Level Input Current. Low Level Input Current. Take a peek at the data sheet. Datahseet Reading the datasheet here, I can’t dtasheet an issue with the logic levels.
IC Datasheet: 74LS Data Sheet : Free Download, Borrow, and Streaming : Internet Archive
Perhaps this has something to do with your problem. The thresholds are 0.
This 8-bit shift register features gated serial inputs and an. When I power-on the circuit, all the LEDs are off.
Thus exceeding operating datasheet 74ls164, all bets are off. I resolved my datasheet 74ls164. Hold Time, Clock to A1 or A2. When the asker is sourcing more than the chip can do by more than a factor of 10, I’d look there first. A Low power Schottky input typically sits at about 1.
I took some photos of the datashfet, the first is the clock from the GPIO without nothing and the second is the clock connected to the register. Looks pretty clean but you datasheet 74ls164 to zoom way in datasheet 74ls164 know for sure. Sign up using Facebook. Just disconnect the LEDs and use the scope to check outputs. Low Level Input Voltage. The measurement or what I think is the measurement number in all the screen shots says 3. Or, datasheet 74ls164 pulse has a ragged edge s and the is actually clocking several times.
You likely datasheet 74ls164 reflections on your clock line, causing it to be treated as multiple clock pulses. Questions Tags Users Badges Unanswered.