By providing input threshold hysteresis Schmitt trigger buffers, line drivers and gates are ideal for interfacing slowly changing analog signals to digital systems.
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Schmitt trigger buffers, line drivers and gates
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74LVC14AD
Hex inverting Schmitt trigger with 5 V tolerant input
74LVC14ADB
Hex inverting Schmitt trigger with 5 V tolerant input
Key features and benefits
- Prevents multiple switching when driven by slow edges
- Cleans up the noisy signals
- Reshapes the signals in complex layouts
- Suitable for mixed 3.3 V and 5.0 V applications
- Wide voltage supply range
- Input hysteresis
- Open drain output options
- CMOS and TTL variants
- Overvoltage tolerant input options
- AEC Q100 grade 1
Key applications
- Sine wave to square wave conversion
- Interface between analog and digital environments
- Increase noise immunity in design
- Relaxation oscillators
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Descriptive summary
Schmitt triggers are able to transform the slowly changing input signals into sharply defined jitter free output signals. These devices are useful in systems with noisy input signals that have large slew rates and can cause the oscillations or undefined logic levels at outputs. Integration of Schmitt triggers inputs saves the cost and space of using standalone Schmitt triggers on boards.
Schmitt triggers buffers can be used to interface sensors, used in tachometers, engine temperature and oil pressure with embedded processors in automotive applications; as well as in signal conditioning, relaxation oscillators, astable and monostable multivibrators and clock drivers in electronic control and automotive lighting systems.
Schmitt trigger products are available in standard SO, TSSOP, PicoGate and innovative leadless MicroPak and DQFN packages for PCB space saving. NXP's automotive Schmitt trigger products are fully specified from 40°C to 125°C, and are qualified per AEC Q100 grade 1
Products
| Type number | Description | Status | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74AUP1G17 Series | Low-power Schmitt trigger | ||||||||||||||||
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| 74AUP2G17 Series | Low-power dual Schmitt trigger | ||||||||||||||||
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| 74AHC132BQ | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AHC132D | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AHC132PW | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AHC14BQ | Hex inverting Schmitt trigger | ||||||||||||||||
| 74AHC14D | Hex inverting Schmitt trigger | ||||||||||||||||
| 74AHC14PW | Hex inverting Schmitt trigger | ||||||||||||||||
| 74AHC1G14GV | Inverting Schmitt trigger | ||||||||||||||||
| 74AHC1G14GW | Inverting Schmitt trigger | ||||||||||||||||
| 74AHC3G14DC | Triple inverting Schmitt trigger | ||||||||||||||||
| 74AHC3G14DP | Triple inverting Schmitt trigger | ||||||||||||||||
| 74AHC3G14GD | Triple inverting Schmitt trigger | ||||||||||||||||
| 74AHC3G14GT | Triple inverting Schmitt trigger | ||||||||||||||||
| 74AHCT132BQ | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AHCT132D | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AHCT132PW | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AHCT14BQ | Hex inverting Schmitt trigger | ||||||||||||||||
| 74AHCT14D | Hex inverting Schmitt trigger | ||||||||||||||||
| 74AHCT14PW | Hex inverting Schmitt trigger | ||||||||||||||||
| 74AHCT1G14GV | Inverting Schmitt trigger | ||||||||||||||||
| 74AHCT1G14GW | Inverting Schmitt trigger | ||||||||||||||||
| 74AHCT3G14DC | Triple inverting Schmitt trigger | ||||||||||||||||
| 74AHCT3G14DP | Triple inverting Schmitt trigger | ||||||||||||||||
| 74AHCT3G14GD | Triple inverting Schmitt trigger | ||||||||||||||||
| 74AHCT3G14GT | Triple inverting Schmitt trigger | ||||||||||||||||
| 74ALVC14BQ | Hex inverting Schmitt trigger | ||||||||||||||||
| 74ALVC14D | Hex inverting Schmitt trigger | ||||||||||||||||
| 74ALVC14PW | Hex inverting Schmitt trigger | ||||||||||||||||
| 74AUP1T1326GT | Low-power dual supply buffer/line driver; 3-state | ||||||||||||||||
| 74AUP2G132DC | low-power dual 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AUP2G132GD | low-power dual 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AUP2G132GF | low-power dual 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AUP2G132GM | low-power dual 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AUP2G132GN | low-power dual 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AUP2G132GS | low-power dual 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AUP2G132GT | low-power dual 2-input NAND Schmitt trigger | ||||||||||||||||
| 74AUP2G14GM | Low-power dual Schmitt trigger inverter | ||||||||||||||||
| 74HC132D | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74HC132DB | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74HC132N | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74HC132PW | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74HC14BQ | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HC14D | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HC14DB | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HC14N | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HC14PW | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HC1G14GV | Inverting Schmitt trigger | ||||||||||||||||
| 74HC1G14GW | Inverting Schmitt trigger | ||||||||||||||||
| 74HC2G14GV | Dual inverting Schmitt trigger | ||||||||||||||||
| 74HC2G14GW | Dual inverting Schmitt trigger | ||||||||||||||||
| 74HC2G17GV | Dual non-inverting Schmitt-trigger | ||||||||||||||||
| 74HC2G17GW | Dual non-inverting Schmitt-trigger | ||||||||||||||||
| 74HC3G14DC | Triple inverting Schmitt trigger | ||||||||||||||||
| 74HC3G14DP | Triple inverting Schmitt trigger | ||||||||||||||||
| 74HC3G14GD | Triple inverting Schmitt trigger | ||||||||||||||||
| 74HC7014D | Hex non-inverting precision Schmitt-trigger | ||||||||||||||||
| 74HC7014N | Hex non-inverting precision Schmitt-trigger | ||||||||||||||||
| 74HC7540D | Octal Schmitt trigger buffer/line driver; 3-state; inverting | ||||||||||||||||
| 74HC7540DB | Octal Schmitt trigger buffer/line driver; 3-state; inverting | ||||||||||||||||
| 74HC7540N | Octal Schmitt trigger buffer/line driver; 3-state; inverting | ||||||||||||||||
| 74HC7541D | Octal Schmitt trigger buffer/line driver; 3-state | ||||||||||||||||
| 74HC7541DB | Octal Schmitt trigger buffer/line driver; 3-state | ||||||||||||||||
| 74HC7541N | Octal Schmitt trigger buffer/line driver; 3-state | ||||||||||||||||
| 74HC7541PW | Octal Schmitt trigger buffer/line driver; 3-state | ||||||||||||||||
| 74HC9114D | Nine wide Schmitt trigger buffer; open drain outputs; inverting | ||||||||||||||||
| 74HC9114N | Nine wide Schmitt trigger buffer; open drain outputs; inverting | ||||||||||||||||
| 74HC9115D | Nine wide Schmitt trigger buffer; open drain outputs | ||||||||||||||||
| 74HC9115N | Nine wide Schmitt trigger buffer; open drain outputs | ||||||||||||||||
| 74HCT132D | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74HCT132DB | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74HCT132N | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74HCT132PW | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74HCT14BQ | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HCT14D | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HCT14DB | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HCT14N | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HCT14PW | Hex inverting Schmitt trigger | ||||||||||||||||
| 74HCT1G14GV | Inverting Schmitt trigger | ||||||||||||||||
| 74HCT1G14GW | Inverting Schmitt trigger | ||||||||||||||||
| 74HCT2G14GV | Dual inverting Schmitt trigger | ||||||||||||||||
| 74HCT2G14GW | Dual inverting Schmitt trigger | ||||||||||||||||
| 74HCT2G17GV | Dual non-inverting Schmitt-trigger | ||||||||||||||||
| 74HCT2G17GW | Dual non-inverting Schmitt-trigger | ||||||||||||||||
| 74HCT3G14DC | Triple inverting Schmitt trigger | ||||||||||||||||
| 74HCT3G14DP | Triple inverting Schmitt trigger | ||||||||||||||||
| 74HCT3G14GD | Triple inverting Schmitt trigger | ||||||||||||||||
| 74HCT7540D | Octal Schmitt trigger buffer/line driver; 3-state; inverting | ||||||||||||||||
| 74HCT7540N | Octal Schmitt trigger buffer/line driver; 3-state; inverting | ||||||||||||||||
| 74HCT7541D | Octal Schmitt trigger buffer/line driver; 3-state | ||||||||||||||||
| 74HCT7541N | Octal Schmitt trigger buffer/line driver; 3-state | ||||||||||||||||
| 74HCT7541PW | Octal Schmitt trigger buffer/line driver; 3-state | ||||||||||||||||
| 74HCT9114D | Nine wide Schmitt trigger buffer; open drain outputs; inverting | ||||||||||||||||
| 74HCT9114N | Nine wide Schmitt trigger buffer; open drain outputs; inverting | ||||||||||||||||
| 74HCT9115D | Nine wide Schmitt trigger buffer; open drain outputs | ||||||||||||||||
| 74HCT9115N | Nine wide Schmitt trigger buffer; open drain outputs | ||||||||||||||||
| 74LV132BQ | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74LV132D | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74LV132DB | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74LV132N | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74LV132PW | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74LV14BQ | Hex inverting Schmitt trigger | ||||||||||||||||
| 74LV14D | Hex inverting Schmitt trigger | ||||||||||||||||
| 74LV14DB | Hex inverting Schmitt trigger | ||||||||||||||||
| 74LV14N | Hex inverting Schmitt trigger | ||||||||||||||||
| 74LV14PW | Hex inverting Schmitt trigger | ||||||||||||||||
| 74LVC132ABQ | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74LVC132AD | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74LVC132APW | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| 74LVC14ABQ | Hex inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC14AD | Hex inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC14ADB | Hex inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC14APW | Hex inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC1G14GF | Single Schmitt-trigger inverter | ||||||||||||||||
| 74LVC1G14GM | Single Schmitt-trigger inverter | ||||||||||||||||
| 74LVC1G14GN | Single Schmitt-trigger inverter | ||||||||||||||||
| 74LVC1G14GS | Single Schmitt-trigger inverter | ||||||||||||||||
| 74LVC1G14GV | Single Schmitt-trigger inverter | ||||||||||||||||
| 74LVC1G14GW | Single Schmitt-trigger inverter | ||||||||||||||||
| 74LVC1G17GF | Single Schmitt trigger buffer | ||||||||||||||||
| 74LVC1G17GM | Single Schmitt trigger buffer | ||||||||||||||||
| 74LVC1G17GN | Single Schmitt trigger buffer | ||||||||||||||||
| 74LVC1G17GS | Single Schmitt trigger buffer | ||||||||||||||||
| 74LVC1G17GV | Single Schmitt trigger buffer | ||||||||||||||||
| 74LVC1G17GW | Single Schmitt trigger buffer | ||||||||||||||||
| 74LVC2G14GF | Dual inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G14GM | Dual inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G14GN | Dual inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G14GS | Dual inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G14GV | Dual inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G14GW | Dual inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G17GF | Dual non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G17GM | Dual non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G17GN | Dual non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G17GS | Dual non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G17GV | Dual non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC2G17GW | Dual non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G14DC | Triple inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G14DP | Triple inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G14GD | Triple inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G14GF | Triple inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G14GM | Triple inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G14GN | Triple inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G14GS | Triple inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G14GT | Triple inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G17DC | Triple non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G17DP | Triple non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G17GD | Triple non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G17GF | Triple non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G17GM | Triple non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G17GN | Triple non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G17GS | Triple non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVC3G17GT | Triple non-inverting Schmitt trigger with 5 V tolerant input | ||||||||||||||||
| 74LVT14BQ | 3.3 V hex inverter Schmitt trigger | ||||||||||||||||
| 74LVT14D | 3.3 V hex inverter Schmitt trigger | ||||||||||||||||
| 74LVT14DB | 3.3 V hex inverter Schmitt trigger | ||||||||||||||||
| 74LVT14PW | 3.3 V hex inverter Schmitt trigger | ||||||||||||||||
| 74VHC14BQ | Hex inverting Schmitt trigger | ||||||||||||||||
| 74VHC14D | Hex inverting Schmitt trigger | ||||||||||||||||
| 74VHC14PW | Hex inverting Schmitt trigger | ||||||||||||||||
| 74VHCT14BQ | Hex inverting Schmitt trigger | ||||||||||||||||
| 74VHCT14D | Hex inverting Schmitt trigger | ||||||||||||||||
| 74VHCT14PW | Hex inverting Schmitt trigger | ||||||||||||||||
| HEC40106BT | Hex inverting Schmitt trigger | ||||||||||||||||
| HEC4093BT | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| HEF40106BP | Hex inverting Schmitt trigger | ||||||||||||||||
| HEF40106BT | Hex inverting Schmitt trigger | ||||||||||||||||
| HEF40106BTT | Hex inverting Schmitt trigger | ||||||||||||||||
| HEF4093BP | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| HEF4093BT | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| HEF4093BU | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| I74F14D | Hex inverter Schmitt trigger | ||||||||||||||||
| I74F14N | Hex inverter Schmitt trigger | ||||||||||||||||
| N74F132D | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| N74F132N | Quad 2-input NAND Schmitt trigger | ||||||||||||||||
| N74F14D | Hex inverter Schmitt trigger | ||||||||||||||||
| N74F14N | Hex inverter Schmitt trigger | ||||||||||||||||
| XC7SET14GV | Inverting Schmitt trigger | ||||||||||||||||
| XC7SET14GW | Inverting Schmitt trigger | ||||||||||||||||
| XC7SH14GV | Inverting Schmitt trigger | ||||||||||||||||
| XC7SH14GW | Inverting Schmitt trigger | ||||||||||||||||
| XC7WH14DC | Triple inverting Schmitt trigger | ||||||||||||||||
| XC7WH14DP | Triple inverting Schmitt trigger | ||||||||||||||||
| XC7WH14GD | Triple inverting Schmitt trigger | ||||||||||||||||
| XC7WH14GT | Triple inverting Schmitt trigger | ||||||||||||||||
| XC7WT14DC | Triple inverting Schmitt trigger | ||||||||||||||||
| XC7WT14DP | Triple inverting Schmitt trigger | ||||||||||||||||
| XC7WT14GD | Triple inverting Schmitt trigger | ||||||||||||||||
| XC7WT14GT | Triple inverting Schmitt trigger | ||||||||||||||||
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