Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

74LVT244A; 74LVTH244A

3.3 V octal buffer/line driver; 3-state

The 74LVT244A; 74LVTH244A 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. Bus hold data inputs eliminate the need for external pull-up resistors to define unused inputs

Features and benefits

  • Octal bus interface

  • 3-state buffers

  • Output capability: +64 mA and -32 mA

  • Wide supply voltage range from 2.7 V to 3.6 V

  • Overvoltage tolerant inputs to 5.5 V

  • Direct interface with TTL levels

  • BiCMOS high speed and output drive

  • IOFF circuitry provides partial Power-down mode operation

  • Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs

  • Live insertion and extraction permitted

  • Power-up 3-state

  • No bus current loading when output is tied to 5 V bus

  • Latch-up performance exceeds 500 mA per JESD 78 Class II Level B

  • Complies with JEDEC standard JESD8C (2.7 V to 3.6 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

  • Specified from -40 °C to 85 °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
74LVT244ABQ 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 DHVQFN20
74LVT244AD 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 SO20
74LVT244APW 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 TSSOP20
74LVTH244ABQ 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 DHVQFN20
74LVTH244AD 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 SO20
74LVTH244APW 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 TSSOP20

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74LVT244ABQ 74LVT244ABQ,115
(935285602115)		 Active LVT244A SOT764-1
DHVQFN20
(SOT764-1) 		SOT764-1 SOT764-1_115
74LVT244AD 74LVT244AD,118
(935167130118)		 Active 74LVT244AD SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
SOT163-1_118
74LVT244APW 74LVT244APW,118
(935176380118)		 Active LVT244A SOT360-1
TSSOP20
(SOT360-1) 		SOT360-1 SSOP-TSSOP-VSO-WAVE
SOT360-1_118
74LVTH244ABQ 74LVTH244ABQ,115
(935285603115)		 Active LVTH244A SOT764-1
DHVQFN20
(SOT764-1) 		SOT764-1 SOT764-1_115
74LVTH244AD 74LVTH244AD,118
(935262069118)		 Active 74LVTH244AD SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
SOT163-1_118
74LVTH244APW 74LVTH244APW,118
(935262071118)		 Active VTH244A SOT360-1
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
74LVT244AD 74LVT244AD,112
(935167130112)		 Withdrawn / End-of-life 74LVT244AD SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
Not available
74LVT244APW 74LVT244APW,112
(935176380112)		 Withdrawn / End-of-life LVT244A SOT360-1
TSSOP20
(SOT360-1) 		SOT360-1 SSOP-TSSOP-VSO-WAVE
Not available
74LVTH244ADB 74LVTH244ADB,112
(935262070112)		 Obsolete VTH244A SOT339-1
SSOP20
(SOT339-1) 		SOT339-1 SSOP-TSSOP-VSO-WAVE
Not available
74LVTH244ADB,118
(935262070118)		 Withdrawn / End-of-life VTH244A SOT339-1_118

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74LVT244ABQ 74LVT244ABQ,115 74LVT244ABQ rohs rhf rhf
74LVT244AD 74LVT244AD,118 74LVT244AD rohs rhf rhf
74LVT244APW 74LVT244APW,118 74LVT244APW rohs rhf rhf
74LVTH244ABQ 74LVTH244ABQ,115 74LVTH244ABQ rohs rhf rhf
74LVTH244AD 74LVTH244AD,118 74LVTH244AD rohs rhf rhf
74LVTH244APW 74LVTH244APW,118 74LVTH244APW rohs rhf rhf

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS RHF-indicator
74LVT244AD 74LVT244AD,112 74LVT244AD rohs rhf rhf
74LVT244APW 74LVT244APW,112 74LVT244APW rohs rhf rhf
74LVTH244ADB 74LVTH244ADB,112 74LVTH244ADB rohs rhf rhf
74LVTH244ADB 74LVTH244ADB,118 74LVTH244ADB rohs rhf rhf
Quality and reliability disclaimer

Documentation (20)

File name Title Type Date
74LVT_LVTH244A 3.3 V octal buffer/line driver; 3-state Data sheet 2024-07-08
AN263 Power considerations when using CMOS and BiCMOS logic devices Application note 2023-02-07
001aae463 Block diagram: 74LVT244BD, 74LVT244BDB, 74LVT244BPW, 74LVTH244BD, 74LVTH244BDB, 74LVTH244BPW Block diagram 2009-11-04
001aae510 Block diagram: 74LVT244AD, 74LVT244ADB, 74LVT244APW, 74LVTH244AD, 74LVTH244ADB, 74LVTH244APW Block diagram 2009-11-04
001aah764 Block diagram: 74LVT244AD, 74LVT244ADB, 74LVT244APW, 74LVTH244AD, 74LVTH244ADB, 74LVTH244APW Block diagram 2009-11-03
mna825 Block diagram: 74LVT244BD, 74LVT244BDB, 74LVT244BPW, 74LVTH244BD, 74LVTH244BDB, 74LVTH244BPW, 74LVT244AD, 74LVT244ADB, 74LVT244APW, 74LVTH244AD, 74LVTH244ADB, 74LVTH244APW Block diagram 2009-11-04
mna826 Block diagram: 74LVT244AD, 74LVT244ADB, 74LVT244APW, 74LVTH244AD, 74LVTH244ADB, 74LVTH244APW Block diagram 2009-11-04
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
lvt244a lvt244a IBIS model IBIS model 2013-04-09
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
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
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
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
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
lvt244a lvt244a IBIS model IBIS model 2013-04-09

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