74HCS27
Triple 3-input NOR gate with Schmitt-trigger inputs
The 74HCS27 is a triple 3-input NOR gate. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
All inputs are Schmitt-trigger inputs, capable of transforming slowly changing input signals into sharply defined, jitter-free output signals.
Features and benefits
Wide supply voltage range from 2.0 V to 6.0 V
- Schmitt-trigger inputs
- Low power consumption
- Typical supply current (ICC) of 100 nA
- Typical input leakage current (II) of ±10 nA
- ±7.8 mA output drive at 6 V
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
-
Complies with JEDEC standards:
- JESD7A (2.0 V to 6.0 V)
ESD protection:
HBM ANSI/ESDA/JEDEC JS-001 class 3A exceeds 4000 V
CDM ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1500 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Parametrics
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HCS27BQ | 74HCS27BQX (935692010115) |
Active | HCS27 |
DHVQFN14 (SOT762-1) |
SOT762-1 | SOT762-1_115 | |
| 74HCS27D | 74HCS27DJ (935692008118) |
Active | 74HCS27D |
SO14 (SOT108-1) |
SOT108-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT108-1_118 |
| 74HCS27PW | 74HCS27PWJ (935692009118) |
Active | HCS27 |
TSSOP14 (SOT402-1) |
SOT402-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT402-1_118 |
Documentation (17)
| File name | Title | Type | Date |
|---|---|---|---|
| 74HCS27 | Triple 3-input NOR gate with Schmitt-trigger inputs | Data sheet | 2025-07-24 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| SOT762-1 | 3D model for products with SOT762-1 package | Design support | 2019-10-03 |
| SOT108-1 | 3D model for products with SOT108-1 package | Design support | 2020-01-22 |
| SOT402-1 | 3D model for products with SOT402-1 package | Design support | 2023-02-02 |
| 74hcs27 | 74HCS27 IBIS Model | IBIS model | 2025-07-24 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| DHVQFN14_SOT762-1_mk | plastic, dual in-line compatible thermal enhanced very thin quad flat package; no leads; 14 terminals; 0.5 mm pitch; 2.5 mm x 3 mm x 0.85 mm body | Marcom graphics | 2017-01-28 |
| SO14_SOT108-1_mk | plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm body | Marcom graphics | 2017-01-28 |
| TSSOP14_SOT402-1_mk | plastic, thin shrink small outline package; 14 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 |
| SOT762-1 | plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 14 terminals; 0.5 mm pitch; 2.5 x 3 x 1 mm body | Package information | 2023-04-05 |
| SOT108-1 | plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm body | Package information | 2023-11-07 |
| SOT402-1 | plastic, thin shrink small outline package; 14 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.2 mm body | Package information | 2023-11-07 |
| SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
Support
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Models
| File name | Title | Type | Date |
|---|---|---|---|
| SOT762-1 | 3D model for products with SOT762-1 package | Design support | 2019-10-03 |
| SOT108-1 | 3D model for products with SOT108-1 package | Design support | 2020-01-22 |
| SOT402-1 | 3D model for products with SOT402-1 package | Design support | 2023-02-02 |
| 74hcs27 | 74HCS27 IBIS Model | IBIS model | 2025-07-24 |
Sample
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