74HC74; 74HCT74
Applications
Flip-flops are basic storage elements in digital electronics. They transfer input data to the outputs on an edge transition of their clock input providing a robust interface between asynchronous and synchronous systems. Nexperia offers a comprehensive range of D-type flip-flops configured as either positive or negative edge triggered for design flexibility.
Synchronizing asynchronous signals to a specific reference, adding delay to a signal, frequency division, counting of pulses and shifting of data are some common uses of D-type flip-flops.
D-type flip-flops are available in standard SO, TSSOP, PicoGate and innovative leadless MicroPak and DQFN packages for PCB space saving. Nexperia's D-type flip-flops are fully specified from -40 °C to +125 °C.
Features and benefits
- Mixed 5 V and 3.3 V applications
- Improved signal integrity with integrated termination resistors
- High noise immunity
- Flow through pin out for easy layout
- Wide supply voltage range
- Low propagation delay
- Overvoltage tolerant input options
- Integrated source termination resistor options
- Bus hold options
Applications
- Frequency division
- Controlled delays
- Interface between asynchronous and synchronous systems
Parametrics
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HC74BQ | 2.0 - 6.0 | CMOS | ± 5.2 | 14 | 82 | low | -40~125 | 106 | 20.9 | 74 | DHVQFN14 |
| 74HC74D | 2.0 - 6.0 | CMOS | ± 5.2 | 14 | 82 | low | -40~125 | 108 | 20.1 | 66 | SO14 |
| 74HC74PW | 2.0 - 6.0 | CMOS | ± 5.2 | 14 | 82 | low | -40~125 | 141 | 7.8 | 67 | TSSOP14 |
| 74HCT74BQ | 4.5 - 5.5 | TTL | ± 4 | 15 | 59 | low | -40~125 | 106 | 20.9 | 74 | DHVQFN14 |
| 74HCT74D | 4.5 - 5.5 | TTL | ± 4 | 15 | 59 | low | -40~125 | 108 | 20.1 | 66 | SO14 |
| 74HCT74PW | 4.5 - 5.5 | TTL | ± 4 | 15 | 59 | low | -40~125 | 141 | 7.8 | 67 | TSSOP14 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HC74BQ | 74HC74BQ,115 (935273672115) |
Active | HC74 |
DHVQFN14 (SOT762-1) |
SOT762-1 | SOT762-1_115 | |
| 74HC74D | 74HC74D,653 (933713380653) |
Active | 74HC74D |
SO14 (SOT108-1) |
SOT108-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
Not available |
| 74HC74PW | 74HC74PW,118 (935175130118) |
Active | HC74 |
TSSOP14 (SOT402-1) |
SOT402-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT402-1_118 |
| 74HCT74BQ | 74HCT74BQ,115 (935273615115) |
Active | HCT74 |
DHVQFN14 (SOT762-1) |
SOT762-1 | SOT762-1_115 | |
| 74HCT74D | 74HCT74D,653 (933713390653) |
Active | 74HCT74D |
SO14 (SOT108-1) |
SOT108-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
Not available |
| 74HCT74PW | 74HCT74PW,118 (935175150118) |
Active | HCT74 |
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 |
|---|---|---|---|---|---|---|---|
| 74HC74DB | 74HC74DB,112 (935175170112) |
Obsolete |
SSOP14 (SOT337-1) |
SOT337-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
Not available | |
| 74HC74DB,118 (935175170118) |
Obsolete | SOT337-1_118 | |||||
| 74HCT74D | 74HCT74D,652 (933713390652) |
Withdrawn / End-of-life | 74HCT74D |
SO14 (SOT108-1) |
SOT108-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT108-1_652 |
| 74HCT74DB | 74HCT74DB,112 (935175180112) |
Obsolete | HCT74 |
SSOP14 (SOT337-1) |
SOT337-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
Not available |
| 74HCT74DB,118 (935175180118) |
Obsolete | HCT74 | SOT337-1_118 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC74BQ | 74HC74BQ,115 | 74HC74BQ |
|
|
| 74HC74D | 74HC74D,653 | 74HC74D |
|
|
| 74HC74PW | 74HC74PW,118 | 74HC74PW |
|
|
| 74HCT74BQ | 74HCT74BQ,115 | 74HCT74BQ |
|
|
| 74HCT74D | 74HCT74D,653 | 74HCT74D |
|
|
| 74HCT74PW | 74HCT74PW,118 | 74HCT74PW |
|
|
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC74DB | 74HC74DB,112 | 74HC74DB |
|
|
| 74HC74DB | 74HC74DB,118 | 74HC74DB |
|
|
| 74HCT74D | 74HCT74D,652 | 74HCT74D |
|
|
| 74HCT74DB | 74HCT74DB,112 | 74HCT74DB |
|
|
| 74HCT74DB | 74HCT74DB,118 | 74HCT74DB |
|
|
Documentation (24)
| File name | Title | Type | Date |
|---|---|---|---|
| 74HC_HCT74 | Dual D-type flip-flop with set and reset; positive edge-trigger | Data sheet | 2024-04-02 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| AN90063 | Questions about package outline drawings | Application note | 2026-06-17 |
| 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 |
| hc74 | 74HC74 IBIS model | IBIS model | 2022-10-21 |
| hct74 | 74HCT74 IBIS model | IBIS model | 2022-10-21 |
| 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 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
| 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 |
Support
If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.
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 |
| hc74 | 74HC74 IBIS model | IBIS model | 2022-10-21 |
| hct74 | 74HCT74 IBIS model | IBIS model | 2022-10-21 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
Sample
As a Nexperia customer you can order samples via our sales organization.
If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.