74LVC245A; 74LVCH245A

Octal bus transceiver; 3-state

The 74LVC245A; 74LVCH245A is an 8-bit transceiver with 3-state outputs. The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE 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

Wide supply voltage range from 1.2 V to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels
Overvoltage tolerant inputs to 5.5 V
Bus hold on all data inputs (74LVCH245A only)
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 JESD22-A114F exceeds 2000 V
- MM JESD22-A115B exceeds 200 V
- CDM JESD22-C101E exceeds 1000 V
Specified from -40 °C to +85 °C and -40 °C to +125 °C

Parametrics

Type number	Product status	V_CC(A) (V)	V_CC(B) (V)	Logic switching levels	Output drive capability	t_pd (ns)	No of bits	f_max (MHz)	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	R_th(j-c) (K/W)	Package name
74LVC245ABQ	Production	1.2 - 3.6	n.a.	CMOS/LVTTL	± 24	2.9	8	175	low	-40~125	77	48	DHVQFN20
74LVC245ABZ	Production	1.2 - 3.6	n.a.	CMOS/LVTTL	-	-	-	-	low	-40~125	-	-	DHXQFN
74LVC245AD	Production	1.2 - 3.6	n.a.	CMOS/LVTTL	± 24	2.9	8	175	low	-40~125	84	60	SO20
74LVC245APW	Production	1.2 - 3.6	n.a.	CMOS/LVTTL	± 24	2.9	8	175	low	-40~125	100	44	TSSOP20
74LVCH245ABQ	Production	1.2 - 3.6	n.a.	CMOS/LVTTL	± 24	2.9	8	175	low	-40~125	77	48	DHVQFN20
74LVCH245AD	Production	1.2 - 3.6	n.a.	CMOS/LVTTL	± 24	2.9	8	175	low	-40~125	84	60	SO20
74LVCH245APW	Production	1.2 - 3.6	n.a.	CMOS/LVTTL	± 24	2.9	8	175	low	-40~125	100	44	TSSOP20

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74LVC245ABQ	DHVQFN20 (SOT764-1)	SOT764-1		Reel 7” Q1/T1 or Q2/T3	Active	LVC245A LVC245A Standard Procedure Standard Procedure	74LVC245ABQ,115 ( 9352 735 95115 )
74LVC245ABZ	DHXQFN (SOT8020-1)	SOT8020-1		Reel 7” Q1/T1 or Q2/T3	Active	VC245	74LVC245ABZX ( 9356 911 45115 )
74LVC245AD	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	Reel 13" Q1/T1	Active	74LVC245AD	74LVC245AD,118 ( 9352 115 10118 )
74LVC245APW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	LVC245A LVC245A Standard Procedure Standard Procedure	74LVC245APW,118 ( 9352 115 40118 )
74LVCH245ABQ	DHVQFN20 (SOT764-1)	SOT764-1		Reel 7” Q1/T1 or Q2/T3	Active	LVCH245A	74LVCH245ABQ,115 ( 9352 736 96115 )
74LVCH245AD	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	Reel 13" Q1/T1	Active	74LVCH245AD	74LVCH245AD,118 ( 9352 115 50118 )
74LVCH245APW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	VCH245A	74LVCH245APW,118 ( 9352 115 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))
74LVC245AD	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	Bulk Pack	Discontinued / End-of-life	74LVC245AD	74LVC245AD,112 ( 9352 115 10112 )
74LVC245APW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	Bulk Pack	Discontinued / End-of-life	LVC245A LVC245A Standard Procedure Standard Procedure	74LVC245APW,112 ( 9352 115 40112 )
74LVCH245AD	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	Bulk Pack	Discontinued / End-of-life	74LVCH245AD	74LVCH245AD,112 ( 9352 115 50112 )
74LVCH245APW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	Bulk Pack	Discontinued / End-of-life	VCH245A	74LVCH245APW,112 ( 9352 115 70112 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74LVC245AD	935211510112
74LVC245APW	935211540112
74LVCH245AD	935211550112
74LVCH245APW	935211570112

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	Leadfree conversion date	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74LVC245ABQ	74LVC245ABQ,115	74LVC245ABQ	Always Pb-free	19.3	0.5	2E9	1	1
74LVC245ABZ	74LVC245ABZX	74LVC245ABZ		19.3	0.5	2E9
74LVC245AD	74LVC245AD,118	74LVC245AD	week 30, 2004	19.3	0.5	2E9	1	1
74LVC245APW	74LVC245APW,118	74LVC245APW	week 7, 2005	19.3	0.5	2E9	1	1
74LVCH245ABQ	74LVCH245ABQ,115	74LVCH245ABQ	Always Pb-free	19.3	0.5	2E9	1	1
74LVCH245AD	74LVCH245AD,118	74LVCH245AD	week 30, 2004	19.3	0.5	2E9	1	1
74LVCH245APW	74LVCH245APW,118	74LVCH245APW	week 7, 2005	19.3	0.5	2E9	1	1

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

Type number	Orderable part number	Chemical content	Leadfree conversion date	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74LVC245AD	74LVC245AD,112	74LVC245AD	week 30, 2004	19.3	0.5	2E9	1	1
74LVC245APW	74LVC245APW,112	74LVC245APW	week 7, 2005	19.3	0.5	2E9	1	1
74LVCH245AD	74LVCH245AD,112	74LVCH245AD	week 30, 2004	19.3	0.5	2E9	1	1
74LVCH245APW	74LVCH245APW,112	74LVCH245APW	week 7, 2005	19.3	0.5	2E9	1	1

Quality and reliability disclaimer

Documentation (11)

File name	Title	Type	Date
74LVC_LVCH245A	Octal bus transceiver; 3-state	Data sheet	2021-09-16
AN11009	Pin FMEA for LVC family	Application note	2019-01-09
lvc245a	lvc245a IBIS model	IBIS model	2021-02-02
lvch245a	lvch245a IBIS model	IBIS model	2013-04-07
lvc	lvc Spice model	SPICE model	2013-05-06
SOT8020-1	plastic, leadless dual in-line compatible thermal enhanced extreme thin quad flat package;no leads; 20 terminals; 0.4 mm pitch; body 2 mm x 3.2 mm x 0.48 mm	Package information	2021-09-15
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	2021-08-17
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	2020-04-21
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	2020-04-21
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08

Support

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Models

File name	Title	Type	Date
lvc245a	lvc245a IBIS model	IBIS model	2021-02-02
lvch245a	lvch245a IBIS model	IBIS model	2013-04-07
lvc	lvc Spice model	SPICE model	2013-05-06

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