SCET014 june 2023 SN74LVC1G08 , SN74LVC1G08-Q1 , SN74LVC1G14 , SN74LVC1G14-Q1 , SN74LVC1G175 , SN74LVC2G74 , SN74LVC2G74-Q1
A push-button or other input trigger signal can be used to toggle an enable signal on or off, alternating between the two modes with each press. A flip-flop with a clear pin can be used if it is necessary that the flip-flop be in a specific state after power-on.
Design Considerations
- The flip-flop can trigger on with either a button press or a button depress depending on the debounce configuration
- When the device is first powered
on, the flip-flop outputs an unknown state unless the device is reset with a
power-on reset pulse
- Systems which do not require starting in a specific state when powered on do not require asynchronous clear
- Flip-flops with inverted outputs do not require the inverter on the output
- [FAQ] How does a slow or floating input affect a CMOS device?
- [FAQ] Where do I find maximum power dissipation for a device?
- Ask a question on the TI E2E™ forum
Recommended Parts
| Part Number | AEC-Q100 | VCC Range | Function | Features |
|---|---|---|---|---|
| SN74LVC1G08 | 1.65 V – 5.5 V | D-type flip-flop | 1 channel, Inverted output | |
| SN74LVC1G08-Q1 | ✓ | |||
| SN74LVC1G175 | 1.65 V – 5.5 V | D-type flip-flop | 1 channel, Asynchronous clear | |
| SN74LVC2G74 | 1.65 V – 5.5 V | D-type flip-flop | 1 Channel, Asynchronous clear, Inverted output, Preset | |
| SN74LVC2G74-Q1 | ✓ | |||
| SN74LVC1G14 | 1.65 V – 5.5 V | Inverting buffer | Schmitt-trigger inputs | |
| SN74LVC1G14-Q1 | ✓ |
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