Features and benefits
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Balanced propagation delays
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All inputs have a Schmitt-trigger action
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Inputs accepts voltages higher than VCC
- Input levels:
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The 74VHC244 operates with CMOS input level
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The 74VHCT244 operates with TTL input level
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- ESD protection:
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HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
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CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
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Multiple package options
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Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Parametrics
Type number | Product status | 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 | Production | 2.0 - 5.5 | CMOS | ± 8 | 60 | 8 | low | -40~125 | 78 | 50 | DHVQFN20 |
74VHC244D | Production | 2.0 - 5.5 | CMOS | ± 8 | 60 | 8 | low | -40~125 | 85 | 61 | SO20 |
74VHC244PW | Production | 2.0 - 5.5 | CMOS | ± 8 | 60 | 8 | low | -40~125 | 101 | 45 | TSSOP20 |
74VHCT244BQ | Production | 4.5 - 5.5 | TTL | ± 8 | 60 | 8 | low | -40~125 | 78 | 50 | DHVQFN20 |
74VHCT244D | Production | 4.5 - 5.5 | TTL | ± 8 | 60 | 8 | low | -40~125 | 85 | 61 | SO20 |
74VHCT244PW | Production | 4.5 - 5.5 | TTL | ± 8 | 60 | 8 | low | -40~125 | 101 | 45 | TSSOP20 |
Package
Type number | Package | Package information | Reflow-/Wave soldering | Packing | Status | Marking | Orderable part number, (Ordering code (12NC)) |
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74VHC244BQ | DHVQFN20 (SOT764-1) | SOT764-1 | SOT764-1_115 | Active | VHC244 | 74VHC244BQ,115 ( 9352 896 08115 ) | |
74VHC244D | SO20 (SOT163-1) | SOT163-1 | WAVE_BG-BD-1 | SOT163-1_118 | Active | 74VHC244D | 74VHC244D,118 ( 9352 896 11118 ) |
74VHC244PW | TSSOP20 (SOT360-1) | SOT360-1 | SSOP-TSSOP-VSO-WAVE | SOT360-1_118 | Active | VHC244 | 74VHC244PW,118 ( 9352 896 13118 ) |
74VHCT244BQ | DHVQFN20 (SOT764-1) | SOT764-1 | SOT764-1_115 | Active | VHCT244 | 74VHCT244BQ,115 ( 9352 896 09115 ) | |
74VHCT244D | SO20 (SOT163-1) | SOT163-1 | WAVE_BG-BD-1 | SOT163-1_118 | Active | 74VHCT244D | 74VHCT244D,118 ( 9352 896 12118 ) |
74VHCT244PW | TSSOP20 (SOT360-1) | SOT360-1 | SSOP-TSSOP-VSO-WAVE | SOT360-1_118 | Active | VHCT244 | 74VHCT244PW,118 ( 9352 896 14118 ) |
Environmental information
Type number | Orderable part number | Chemical content | RoHS | RHF-indicator | Leadfree conversion date |
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74VHC244BQ | 74VHC244BQ,115 | 74VHC244BQ | Always Pb-free | ||
74VHC244D | 74VHC244D,118 | 74VHC244D | Always Pb-free | ||
74VHC244PW | 74VHC244PW,118 | 74VHC244PW | Always Pb-free | ||
74VHCT244BQ | 74VHCT244BQ,115 | 74VHCT244BQ | Always Pb-free | ||
74VHCT244D | 74VHCT244D,118 | 74VHCT244D | Always Pb-free | ||
74VHCT244PW | 74VHCT244PW,118 | 74VHCT244PW | Always Pb-free |
Documentation (8)
File name | Title | Type | Date |
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74VHC_VHCT244 | Octal buffer/line driver; 3-state | Data sheet | 2024-07-08 |
74vhct244 | 74vhct244 IBIS model | IBIS model | 2013-04-07 |
74vhc244 | 74vhc244 IBIS model | IBIS model | 2013-04-07 |
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 |
SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
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 |
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 |
WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
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