The SN74HCS27PWR is a triple 3-input NOR gate from TI's 74HCS logic family, packing three independent NOR circuits into a 14-TSSOP package. Each of the three gates accepts three inputs and delivers a standard NOR output, but the key feature here is the Schmitt-trigger action on every input — it cleans up slow, noisy, or non-monotonic edges before the gate switches. That makes this part a natural fit for industrial control boards, motor-drive interface logic, or any 3.3V or 5V backplane where signal integrity is marginal and a plain gate would oscillate or double-clock.
SN74HCS27PWR
Texas Instruments · 74HCS Series
Texas Instruments 74HCS series NOR Gate, SN74HCS27PWR, 3 Circuits, 3-Input, 2V to 6V Supply, 7.8mA Output, 12ns @ 6V, 50pF, -40°C to 125°C, 14-TSSOP.
[IN STOCK] In Stock: 422 pcs
MOQ 5 · Tape & Reel (TR); Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T
Technical specifications
| Parameter / Attribute | Specification / Value |
|---|---|
| Series | 74HCS |
| Logic type | NOR Gate |
| Mounting | Surface Mount |
| Supply voltage | 2V ~ 6V |
| Current - quiescent | 2 µA |
| Current - output high, low | 7.8mA, 7.8mA |
| I/O channels | 3 |
| Operating temperature | -40°C ~ 125°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Features | Schmitt Trigger Input |
| Case | 14-TSSOP (0.173\", 4.40mm Width) |
| Number of circuits | 3 |
| Input logic level - low | 1V ~ 3V |
| Input logic level - high | 1.5V ~ 4.2V |
| Max propagation delay @ v, max CL | 12ns @ 6V, 50pF |
Technical details
SN74HCS27PWR
[ALLOC] verified