74HC27; 74HCT27
Triple 3-input NOR gate
The 74HC27; 74HCT27 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.
Features and benefits
Wide supply voltage range from 2.0 V to 6.0 V
CMOS low power dissipation
High noise immunity
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards:
- JESD8C (2.7 V to 3.6 V)
- JESD7A (2.0 V to 6.0 V)
Input levels:
For 74HC27: CMOS level
For 74HCT27: TTL level
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Parametrics
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|---|---|---|---|
| 74HC27BQ | 2.0 - 6.0 | CMOS | ± 5.2 | 8.0 | 36 | 3 | low | -40~125 | DHVQFN14 |
| 74HC27D | 2.0 - 6.0 | CMOS | ± 5.2 | 8.0 | 36 | 3 | low | -40~125 | SO14 |
| 74HC27PW | 2.0 - 6.0 | CMOS | ± 5.2 | 8.0 | 36 | 3 | low | -40~125 | TSSOP14 |
| 74HCT27BQ | 4.5 - 5.5 | TTL | ± 4 | 10 | 36 | 3 | low | -40~125 | DHVQFN14 |
| 74HCT27D | 4.5 - 5.5 | TTL | ± 4 | 10 | 36 | 3 | low | -40~125 | SO14 |
| 74HCT27PW | 4.5 - 5.5 | TTL | ± 4 | 10 | 36 | 3 | low | -40~125 | TSSOP14 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HC27BQ | 74HC27BQ,115 (935283678115) |
Active | HC27 |
DHVQFN14 (SOT762-1) |
SOT762-1 | SOT762-1_115 | |
| 74HC27D | 74HC27D,653 (933714170653) |
Active | 74HC27D |
SO14 (SOT108-1) |
SOT108-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
Not available |
| 74HC27PW | 74HC27PW,118 (935189010118) |
Active | HC27 |
TSSOP14 (SOT402-1) |
SOT402-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT402-1_118 |
| 74HCT27BQ | 74HCT27BQ,115 (935283679115) |
Active | HCT27 |
DHVQFN14 (SOT762-1) |
SOT762-1 | SOT762-1_115 | |
| 74HCT27D | 74HCT27D,653 (933714180653) |
Active | 74HCT27D |
SO14 (SOT108-1) |
SOT108-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
Not available |
| 74HCT27PW | 74HCT27PW,118 (935189580118) |
Active | HCT27 |
TSSOP14 (SOT402-1) |
SOT402-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT402-1_118 |
All type numbers in the table below are discontinued.
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HC27DB | 74HC27DB,112 (935188790112) |
Obsolete | HC27 |
SSOP14 (SOT337-1) |
SOT337-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
Not available |
| 74HC27DB,118 (935188790118) |
Obsolete | HC27 | SOT337-1_118 | ||||
| 74HCT27D | 74HCT27D,652 (933714180652) |
Withdrawn / End-of-life | 74HCT27D |
SO14 (SOT108-1) |
SOT108-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT108-1_652 |
| 74HCT27DB | 74HCT27DB,112 (935189280112) |
Obsolete | HCT27 |
SSOP14 (SOT337-1) |
SOT337-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
Not available |
| 74HCT27DB,118 (935189280118) |
Obsolete | HCT27 | SOT337-1_118 | ||||
| 74HCT27PW | 74HCT27PW,112 (935189580112) |
Withdrawn / End-of-life | HCT27 |
TSSOP14 (SOT402-1) |
SOT402-1 |
SSOP-TSSOP-VSO-WAVE
|
Not available |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC27BQ | 74HC27BQ,115 | 74HC27BQ |
|
|
| 74HC27D | 74HC27D,653 | 74HC27D |
|
|
| 74HC27PW | 74HC27PW,118 | 74HC27PW |
|
|
| 74HCT27BQ | 74HCT27BQ,115 | 74HCT27BQ |
|
|
| 74HCT27D | 74HCT27D,653 | 74HCT27D |
|
|
| 74HCT27PW | 74HCT27PW,118 | 74HCT27PW |
|
|
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC27DB | 74HC27DB,112 | 74HC27DB |
|
|
| 74HC27DB | 74HC27DB,118 | 74HC27DB |
|
|
| 74HCT27D | 74HCT27D,652 | 74HCT27D |
|
|
| 74HCT27DB | 74HCT27DB,112 | 74HCT27DB |
|
|
| 74HCT27DB | 74HCT27DB,118 | 74HCT27DB |
|
|
| 74HCT27PW | 74HCT27PW,112 | 74HCT27PW |
|
|
Documentation (21)
| File name | Title | Type | Date |
|---|---|---|---|
| 74HC_HCT27 | Triple 3-input NOR gate | Data sheet | 2024-03-25 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| mna936 | Block diagram: 74HC27BQ, 74HC27D, 74HC27DB, 74HC27N, 74HC27PW, 74HCT27BQ, 74HCT27D, 74HCT27DB, 74HCT27N, 74HCT27PW | Block diagram | 2009-11-04 |
| 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 |
| 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 |
| SSOP14_SOT337-1_mk | plastic, shrink small outline package; 14 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 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 |
| SOT337-1 | plastic, shrink small outline package; 14 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Package information | 2020-04-21 |
| 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 |
| SSOP-TSSOP-VSO-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
| 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 |
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