Use a flip-flop like the SN74LVC1G175 (with D = high).
Use the /CLR input to initialize/reset it. (If you do not have a reset signal, you can use an R-C circuit to generate a low pulse on power up, but then you should use a device with Schmitt-trigger…
A simple Schmitt-trigger buffer (e.g., SN74LVC1G17) is enough to get a proper signal.
Alternatively, use a flip-flop with Schmitt-trigger inputs, e.g., SN74HCS74.
Emrys Maier
hello Emrys, hope it is ok to ask a follow up question. Both the SN74HCS72 and SN74HCS74 are 14 pin ICs but your recommended schematic appears to use 12 pins and with my very limited knowledge i am unable to determine which pins are used and…
Hi Jani,
We have no single input D-Type Flip Flops with Schmitt-Trigger inputs.
We have a 2 channel D-Type Flip Flop with slightly different functionality: SN74HCS74 . This device is offered in the DYY package which is our smallest 14-pin package available…
For handling a mechanical switch, you do not need a master-slave flip-flop. Just use a D-type flip-flop (e.g., SN74AUP1G80 or SN74HCS74) and feed back the inverted output to the D input.
(Don't forget to debounce the switch signal.)
Part Number: SN74LVC74A-EP Other Parts Discussed in Thread: SN74HCS74 Dear team,
We are working on D-flipflop, but it gets triggered on both rising and falling edges. (From datasheet it is observed that CLK should trigger on rising edge only).
We are providing…
The SN74LVC2G74-Q1 has one channel, despite the name.
Two-channel devices (SN74HCS72-Q1, SN74LVC74A-Q1, SN74HCS74-Q1, SN74AHC74Q-Q1, SN74LV74A-Q1) are cheaper.
Hi Dylan,
Let me add more background. Customer's board has 7pcs SN74HCS86 and 14pcs SN74HCS74 and 1pc MCU and 1pc TCA6424. At first, we thought it is SN74HCS86 cause the Iq increase during low temperature test. But now have figured out actually it is…
Good morning,
Thanks a lot again for all information. Let me summarize my application again.
FPGA ---3V3 signal--> LVDS Driver(sn65lvds31) ---LVDS--> LVDS Receiver(sn65lvds33) ---3V0 signal--> Level shifter(sn74lvc2t45)--5V signal--> Inverter(SN74LVC2G04…