74VHC244; 74VHCT244
Octal buffer/line driver; 3-state
The 74VHC244; 74VHCT244 are a high-speed Si-gate CMOS devices.
The 74VHC244; 74VHCT244 have octal non-inverting buffer/line drivers with 3-state outputs. The 3-state outputs are controlled by the output enable inputs (nOE). A HIGH on nOE causes the outputs to assume a high-impedance OFF-state.
Features and benefits
Balanced propagation delays
All inputs have a Schmitt-trigger action
Inputs accepts voltages higher than VCC
- Input levels:
The 74VHC244 operates with CMOS input level
The 74VHCT244 operates with TTL input 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) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Rth(j-c) (K/W) | Package name | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74VHC244BQ | 2.0 - 5.5 | CMOS | ± 8 | 60 | 8 | low | -40~125 | 78 | 50 | DHVQFN20 | |
| 74VHC244D | 2.0 - 5.5 | CMOS | ± 8 | 60 | 8 | low | -40~125 | 85 | 26.8 | 61 | SO20 |
| 74VHC244PW | 2.0 - 5.5 | CMOS | ± 8 | 60 | 8 | low | -40~125 | 101 | 4.5 | 45 | TSSOP20 |
| 74VHCT244BQ | 4.5 - 5.5 | TTL | ± 8 | 60 | 8 | low | -40~125 | 78 | 50 | DHVQFN20 | |
| 74VHCT244D | 4.5 - 5.5 | TTL | ± 8 | 60 | 8 | low | -40~125 | 85 | 26.8 | 61 | SO20 |
| 74VHCT244PW | 4.5 - 5.5 | TTL | ± 8 | 60 | 8 | low | -40~125 | 101 | 4.5 | 45 | TSSOP20 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74VHC244BQ | 74VHC244BQ,115 (935289608115) |
Active | VHC244 |
DHVQFN20 (SOT764-1) |
SOT764-1 | SOT764-1_115 | |
| 74VHC244D | 74VHC244D,118 (935289611118) |
Active | 74VHC244D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
SOT163-1_118 |
| 74VHC244PW | 74VHC244PW,118 (935289613118) |
Active | VHC244 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_118 |
| 74VHCT244BQ | 74VHCT244BQ/GX (935693418115) |
Development | VHCT244 |
DHVQFN20 (SOT764-1) |
SOT764-1 | SOT764-1_115 | |
| 74VHCT244BQ,115 (935289609115) |
Active | VHCT244 | SOT764-1_115 | ||||
| 74VHCT244D | 74VHCT244D,118 (935289612118) |
Active | 74VHCT244D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
SOT163-1_118 |
| 74VHCT244PW | 74VHCT244PW/GJ (935693419118) |
Development | VHCT244 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_118 |
| 74VHCT244PW,118 (935289614118) |
Active | VHCT244 | SOT360-1_118 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74VHC244BQ | 74VHC244BQ,115 | 74VHC244BQ |
|
|
| 74VHC244D | 74VHC244D,118 | 74VHC244D |
|
|
| 74VHC244PW | 74VHC244PW,118 | 74VHC244PW |
|
|
| 74VHCT244BQ | 74VHCT244BQ/GX | 74VHCT244BQ |
|
|
| 74VHCT244BQ | 74VHCT244BQ,115 | 74VHCT244BQ |
|
|
| 74VHCT244D | 74VHCT244D,118 | 74VHCT244D |
|
|
| 74VHCT244PW | 74VHCT244PW/GJ | 74VHCT244PW |
|
|
| 74VHCT244PW | 74VHCT244PW,118 | 74VHCT244PW |
|
|
Documentation (15)
| File name | Title | Type | Date |
|---|---|---|---|
| 74VHC_VHCT244 | Octal buffer/line driver; 3-state | Data sheet | 2024-07-08 |
| AN90063 | Questions about package outline drawings | Application note | 2026-06-17 |
| 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 |
| 74vhc244 | 74vhc244 IBIS model | IBIS model | 2013-04-08 |
| 74vhct244 | 74vhct244 IBIS model | IBIS model | 2013-04-08 |
| 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 | 2024-11-15 |
| SOT360-1 | plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.2 mm body | Package information | 2024-11-15 |
| 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 |
| 74vhc244 | 74vhc244 IBIS model | IBIS model | 2013-04-08 |
| 74vhct244 | 74vhct244 IBIS model | IBIS model | 2013-04-08 |
Ordering, pricing & availability
Sample
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