74HC373; 74HCT373
Octal D-type transparent latch; 3-state
The 74HC373; 74HCT373 is an octal D-type transparent latch with 3-state outputs. The device features latch enable (LE) and output enable (OE) inputs. When LE is HIGH, data at the inputs enter the latches. In this condition the latches are transparent, a latch output will change each time its corresponding D-input changes. When LE is LOW the latches store the information that was present at the inputs a set-up time preceding the HIGH-to-LOW transition of LE. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the latches. 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 74HC373: CMOS level
For 74HCT373: TTL level
3-state non-inverting outputs for bus oriented applications
Common 3-state output enable input
ESD protection:
HBM JESD22-A114F exceeds 2 kV
MM JESD22-A115-A exceeds 200 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) | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|---|---|
| 74HC373BQ | 2.0 - 6.0 | CMOS | ± 7.8 | 12 | low | -40~125 | DHVQFN20 |
| 74HC373D | 2.0 - 6.0 | CMOS | ± 7.8 | 12 | low | -40~125 | SO20 |
| 74HC373PW | 2.0 - 6.0 | CMOS | ± 7.8 | 12 | low | -40~125 | TSSOP20 |
| 74HCT373BQ | 4.5 - 5.5 | TTL | ± 6 | 14 | low | -40~125 | DHVQFN20 |
| 74HCT373D | 4.5 - 5.5 | TTL | ± 6 | 14 | low | -40~125 | SO20 |
| 74HCT373PW | 4.5 - 5.5 | TTL | ± 6 | 14 | low | -40~125 | TSSOP20 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HC373BQ | 74HC373BQ,115 (935274585115) |
Active | HC373BQ |
DHVQFN20 (SOT764-1) |
SOT764-1 | SOT764-1_115 | |
| 74HC373D | 74HC373D,653 (933715470653) |
Active | 74HC373D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
| 74HC373PW | 74HC373PW,118 (935165240118) |
Active | HC373 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_118 |
| 74HCT373BQ | 74HCT373BQ,115 (935274584115) |
Active | HCT373BQ |
DHVQFN20 (SOT764-1) |
SOT764-1 | SOT764-1_115 | |
| 74HCT373D | 74HCT373D,653 (933715580653) |
Active | 74HCT373D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
| 74HCT373PW | 74HCT373PW,118 (935174830118) |
Active | HCT373 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_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 |
|---|---|---|---|---|---|---|---|
| 74HC373DB | 74HC373DB,112 (935174840112) |
Withdrawn / End-of-life | HC373 |
SSOP20 (SOT339-1) |
SOT339-1 |
SSOP-TSSOP-VSO-WAVE
|
Not available |
| 74HC373DB,118 (935174840118) |
Withdrawn / End-of-life | HC373 | SOT339-1_118 | ||||
| 74HCT373PW | 74HCT373PW,112 (935174830112) |
Withdrawn / End-of-life | HCT373 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
Not available |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC373BQ | 74HC373BQ,115 | 74HC373BQ |
|
|
| 74HC373D | 74HC373D,653 | 74HC373D |
|
|
| 74HC373PW | 74HC373PW,118 | 74HC373PW |
|
|
| 74HCT373BQ | 74HCT373BQ,115 | 74HCT373BQ |
|
|
| 74HCT373D | 74HCT373D,653 | 74HCT373D |
|
|
| 74HCT373PW | 74HCT373PW,118 | 74HCT373PW |
|
|
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC373DB | 74HC373DB,112 | 74HC373DB |
|
|
| 74HC373DB | 74HC373DB,118 | 74HC373DB |
|
|
| 74HCT373PW | 74HCT373PW,112 | 74HCT373PW |
|
|
Documentation (16)
| File name | Title | Type | Date |
|---|---|---|---|
| 74HC_HCT373 | Octal D-type transparent latch; 3-state | Data sheet | 2021-09-06 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| SOT764-1 | 3D model for products with SOT764-1 package | Design support | 2019-10-03 |
| SOT163-1 | 3D model for products with SOT163-1 package | Design support | 2020-01-22 |
| SOT360-1 | 3D model for products with SOT360-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| DHVQFN20_SOT764-1_mk | plastic, dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 2.5 mm x 4.5 mm x 0.85 mm body | Marcom graphics | 2017-01-28 |
| TSSOP20_SOT360-1_mk | plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 |
| SOT764-1 | plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 4.5 mm x 2.5 mm x 1 mm body | Package information | 2022-06-21 |
| SOT163-1 | plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm body | Package information | 2022-06-20 |
| SOT339-1 | plastic, shrink small outline package; 20 leads; 0.65 mm pitch; 7.2 mm x 5.3 mm x 2 mm body | Package information | 2020-04-21 |
| SOT360-1 | plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body | Package information | 2022-06-21 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
| HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
| 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 |
|---|---|---|---|
| SOT764-1 | 3D model for products with SOT764-1 package | Design support | 2019-10-03 |
| SOT163-1 | 3D model for products with SOT163-1 package | Design support | 2020-01-22 |
| SOT360-1 | 3D model for products with SOT360-1 package | Design support | 2020-01-22 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
Ordering, pricing & availability
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