Texas Instruments 74LS series, SN74LS14N, hex Schmitt-trigger inverter, 6 circuits, 1 input per circuit, through-hole 14-DIP (0.300", 7.62 mm), 4.75 V to 5.25 V supply, 0°C to 70°C operating temperature.
| Parameter | Value |
|---|---|
| Series | 74LS |
| Logic type | Inverter |
| Mounting | Through Hole |
| Supply voltage | 4.75V ~ 5.25V |
| Current - output high, low | 400µA, 8mA |
| I/O channels | 1 |
| Operating temperature | 0°C ~ 70°C |
| Package | Tube |
| Features | Schmitt Trigger |
| Case | 14-DIP (0.300\", 7.62mm) |
| Number of circuits | 6 |
| Input logic level - low | 0.5V |
| Input logic level - high | 1.9V |
| Max propagation delay @ v, max CL | 22ns @ 5V, 15pF |
The SN74LS14N contains six independent inverter gates with Schmitt-trigger inputs in a 14-pin through-hole DIP. The low-level threshold is 0.5 V, the high-level threshold is 1.9 V.
The 14-DIP package is through-hole. Output drive is 400 µA sourcing, 8 mA sinking.
ROHS3 compliant.
Yes. The supply range is 4.75 V to 5.25 V, and the input thresholds (0.5 V low, 1.9 V high) are directly compatible with standard 5 V TTL outputs. The outputs drive standard LS-TTL loads without extra buffering.
Both are hex inverters in the same 14-DIP package and pinout, but the SN74LS14N has Schmitt-trigger inputs with hysteresis (0.5 V low threshold, 1.9 V high threshold), while the SN74LS04 uses standard TTL input levels. Use the '14 when you need noise immunity on slow or noisy signal lines — for clean digital rails, the '04 is sufficient.