Orderable parts
| Type number | Orderable part number | Ordering code (12NC) | Package | Buy from distributors |
|---|---|---|---|---|
| 74HC244D | 74HC244D,653 | 933713420653 | SOT163-1 | Order product |
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Click here for more information74HC244D
Octal buffer/line driver; 3-state
The 74HC244; 74HCT244 is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Alternatives
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
Input levels:
For 74HC244: CMOS level
For 74HCT244: TTL level
Octal bus interface
Non-inverting 3-state outputs
Complies with JEDEC standards:
JESD8C (2.7 V to 3.6 V)
JESD7A (2.0 V to 6.0 V)
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 -40 °C to +125 °C
Parametrics
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|---|---|---|
| 74HC244D | 2.0 - 6.0 | CMOS | ± 7.8 | 36 | 8 | low | -40~125 | SO20 |
PCB Symbol, Footprint and 3D Model
| Model Name | Description |
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Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HC244D | 74HC244D,653 (933713420653) |
Active | 74HC244D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
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 |
|---|---|---|---|---|---|---|---|
| 74HC244D | 74HC244D,652 (933713420652) |
Withdrawn / End-of-life | 74HC244D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
Not available |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC244D | 74HC244D,653 | 74HC244D |
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All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HC244D | 74HC244D,652 | 74HC244D |
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Series
Documentation (11)
| File name | Title | Type | Date |
|---|---|---|---|
| 74HC_HCT244 | Octal buffer/line driver; 3-state | Data sheet | 2024-08-05 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| AN263 | Power considerations when using CMOS and BiCMOS logic devices | Application note | 2023-02-07 |
| SOT163-1 | 3D model for products with SOT163-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| D12_PC_sch_ver2_0 | D12_PC_sch_ver2_0 | Other type | 2023-09-12 |
| 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 | 2024-11-15 |
| 74HC244D_Nexperia_Product_Reliability | 74HC244D Nexperia Product Reliability | Quality document | 2024-06-16 |
| 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 |
Support
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PCB Symbol, Footprint and 3D Model
| Model Name | Description |
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Ordering, pricing & availability
| Type number | Orderable part number | Ordering code (12NC) | Status | Packing | Packing Quantity | Buy online |
|---|---|---|---|---|---|---|
| 74HC244D | 74HC244D,653 | 933713420653 | Active | Not available | 2,000 | Order product |
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.
How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.
74HC244D
Octal buffer/line driver; 3-state
Buy from Nexperia
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