74LS14 Hex Inverter Schmitt Trigger
Package PDIP, SOIC Series 74LS
74LS14 overview
The 74LS series of integrated circuits (ICs) was one of the most popular logic families of transistor-transistor logic (TTL) logic chips. 74LS series is a bipolar, low-power Schottky IC. 74LS14 Hex Inverter Schmitt Trigger functions as an inverter. However, because of the Schmitt-Trigger action, they have different input threshold levels for positive-going (VT+) and negative-going (VT– ) signals
Key specifications
Supply Voltage
4.75 - 5.25Vdc
Maximum Clock Frequency
40Mhz
Power Dissipation
2mW/gate @100kHz
Minimum Output Current
8mA
Propagation Delay
10nS
Fan Out (TTL Loads)
20
Datasheet
14.pdf
74LS14 features
- Six Independent INVERT Gates
- Standard Pin Configuration
- Fast Switching Times
- Operating Temperature up to 70°C
- Standard TTL Switching Voltages
74LS14 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | A1 | Inverter Gate 1 Input |
| 2 | B1 | Inverter Gate 1 Output |
| 3 | A2 | Inverter Gate 2 Input |
| 4 | B2 | Inverter Gate 2 Output |
| 5 | A3 | Inverter Gate 3 Input |
| 6 | B3 | Inverter Gate 3 Output |
| 7 | GND | Ground |
| 8 | B4 | Inverter Gate 4 Output |
| 9 | A4 | Inverter Gate 4 Input |
| 10 | B5 | Inverter Gate 5 Output |
| 11 | A5 | Inverter Gate 5 Input |
| 12 | B6 | Inverter Gate 6 Output |
| 13 | A6 | Inverter Gate 6 Input |
| 14 | VCC | Positive Supply |
74LS14 applications
- HVAC Gateways
- Residential Ductless Air Conditioning Outdoor Units
- Robotic Controls
- Industrial Stepper Motors
- Power Meter and Power Analyzers
- Digital Input Modules for Factory Automation
More about 74LS14
74LS14 Alternative Equivalent
74LS04, 74LS05, 74LS06
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