74LVC2244A

Octal buffer/line driver; 30 Ohm series termination; 5 V tolerant input/output; 3-state

The 74LVC2244A 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 can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V environments.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

This device is fully specified for partial power down applications using I_OFF. The I_OFF circuitry disables the output, preventing the potentially damaging backflow current through the device when it is powered down.

Features and benefits

Overvoltage tolerant inputs to 5.5 V
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels
Integrated 30 Ω termination resistors
I_OFF circuitry provides partial Power-down mode operation
Complies with JEDEC standard:
- JESD8-7A (1.65 V to 1.95 V)
- JESD8-5A (2.3 V to 2.7 V)
- JESD8-C/JESD36 (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 and -40 °C to +125 °C

Parametrics

Type number	Product status	V_CC (V)	Logic switching levels	Output drive capability (mA)	f_max (MHz)	Nr of bits	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	R_th(j-c) (K/W)	Package name
74LVC2244ABQ	Production	1.2 - 3.6	CMOS/LVTTL	± 12	175	8	low	-40~125	79	50	DHVQFN20
74LVC2244AD	Production	1.2 - 3.6	CMOS/LVTTL	± 12	175	8	low	-40~125	85	61	SO20
74LVC2244APW	Production	1.2 - 3.6	CMOS/LVTTL	± 12	175	8	low	-40~125	100	45	TSSOP20

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74LVC2244ABQ	DHVQFN20 (SOT764-1)	SOT764-1		SOT764-1_115	Active	LVC2244A	74LVC2244ABQ,115 ( 9352 730 00115 )
74LVC2244AD	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	SOT163-1_118	Active	74LVC2244AD	74LVC2244AD,118 ( 9352 135 50118 )
74LVC2244APW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	SOT360-1_118	Active	VC2244A	74LVC2244APW,118 ( 9352 135 70118 )

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74LVC2244APW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	SOT360-1_112	Withdrawn / End-of-life	VC2244A	74LVC2244APW,112 ( 9352 135 70112 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74LVC2244AD	935213550112	2018-12-31	2019-06-30	74LVC2244AD
74LVC2244APW	935213570112	2021-12-31	2022-06-30	74LVC2244APW

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74LVC2244ABQ	74LVC2244ABQ,115	74LVC2244ABQ	Always Pb-free
74LVC2244AD	74LVC2244AD,118	74LVC2244AD	week 30, 2004
74LVC2244APW	74LVC2244APW,118	74LVC2244APW	week 7, 2005

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Orderable part number	Chemical content	RoHS	RHF-indicator	Leadfree conversion date
74LVC2244APW	74LVC2244APW,112	74LVC2244APW			week 7, 2005

Quality and reliability disclaimer

Documentation (11)

File name	Title	Type	Date
74LVC2244A	Octal buffer/line driver; 30 Ohm series termination; 5 V tolerant input/output; 3-state	Data sheet	2023-08-25
AN263	Power considerations when using CMOS and BiCMOS logic devices	Application note	2023-02-07
AN11009	Pin FMEA for LVC family	Application note	2019-01-09
lvc2244a	lvc2244a IBIS model	IBIS model	2013-04-07
Nexperia_Selection_guide_2023	Nexperia Selection Guide 2023	Selection guide	2023-05-10
lvc	lvc Spice model	SPICE model	2013-05-06
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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Models

File name	Title	Type	Date
lvc2244a	lvc2244a IBIS model	IBIS model	2013-04-07
lvc	lvc Spice model	SPICE model	2013-05-06

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