74LVC240A

Octal buffer/line driver with 5 V tolerant inputs/outputs; inverting; 3-state

The 74LVC240A is an 8-bit inverting 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 to 3.6 V
CMOS low power consumption
Direct interface with TTL levels
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
Multiple package options
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
74LVC240ABQ	Production	1.2 - 3.6	CMOS/LVTTL	± 24	175	8	low	-40~125	78	50	DHVQFN20
74LVC240AD	Production	1.2 - 3.6	CMOS/LVTTL	± 24	175	8	low	-40~125	85	61	SO20
74LVC240APW	Production	1.2 - 3.6	CMOS/LVTTL	± 24	175	8	low	-40~125	100	44.7	TSSOP20

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74LVC240ABQ	DHVQFN20 (SOT764-1)	SOT764-1		SOT764-1_115	Active	LVC240A	74LVC240ABQ,115 ( 9352 751 01115 )
74LVC240AD	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	SOT163-1_118	Active	74LVC240AD	74LVC240AD,118 ( 9352 104 30118 )
74LVC240APW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	SOT360-1_118	Active	LVC240A	74LVC240APW,118 ( 9352 104 50118 )

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))
74LVC240APW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	SOT360-1_112	Withdrawn / End-of-life	LVC240A	74LVC240APW,112 ( 9352 104 50112 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74LVC240AD	935210430112	2021-12-31	2022-06-30	74LVC240AD
74LVC240APW	935210450112	2021-12-31	2022-06-30	74LVC240APW

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74LVC240ABQ	74LVC240ABQ,115	74LVC240ABQ	Always Pb-free
74LVC240AD	74LVC240AD,118	74LVC240AD	week 30, 2004
74LVC240APW	74LVC240APW,118	74LVC240APW	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
74LVC240APW	74LVC240APW,112	74LVC240APW			week 7, 2005

Quality and reliability disclaimer

Documentation (11)

File name	Title	Type	Date
74LVC240A	Octal buffer/line driver with 5 V tolerant inputs/outputs; inverting; 3-state	Data sheet	2023-08-28
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
lvc240a	lvc240a 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

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
lvc240a	lvc240a IBIS model	IBIS model	2013-04-07
lvc	lvc Spice model	SPICE model	2013-05-06

Ordering, pricing & availability

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

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.