74LVT245BBQ from Nexperia, in a DHVQFN-20-EP(2.5x4.5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	DIR	input	Direction control input that selects A-to-B or B-to-A transfer when OE is LOW.
2	A0	bidirectional	Data input/output A0 with bus hold, 5.5 V tolerant input.
3	A1	bidirectional	Data input/output A1 with bus hold, 5.5 V tolerant input.
4	A2	bidirectional	Data input/output A2 with bus hold, 5.5 V tolerant input.
5	A3	bidirectional	Data input/output A3 with bus hold, 5.5 V tolerant input.
6	A4	bidirectional	Data input/output A4 with bus hold, 5.5 V tolerant input.
7	A5	bidirectional	Data input/output A5 with bus hold, 5.5 V tolerant input.
8	A6	bidirectional	Data input/output A6 with bus hold, 5.5 V tolerant input.
9	A7	bidirectional	Data input/output A7 with bus hold, 5.5 V tolerant input.
10	GND	power_in	Ground (0 V).
11	B7	bidirectional	Data input/output B7 with bus hold, 5.5 V tolerant input.
12	B6	bidirectional	Data input/output B6 with bus hold, 5.5 V tolerant input.
13	B5	bidirectional	Data input/output B5 with bus hold, 5.5 V tolerant input.
14	B4	bidirectional	Data input/output B4 with bus hold, 5.5 V tolerant input.
15	B3	bidirectional	Data input/output B3 with bus hold, 5.5 V tolerant input.
16	B2	bidirectional	Data input/output B2 with bus hold, 5.5 V tolerant input.
17	B1	bidirectional	Data input/output B1 with bus hold, 5.5 V tolerant input.
18	B0	bidirectional	Data input/output B0 with bus hold, 5.5 V tolerant input.
19	OE	input	Active-LOW output enable input; HIGH puts the A and B outputs in high-impedance OFF-state.
20	VCC	power_in	Supply voltage, 2.7 V to 3.6 V recommended operating range.
21	EP	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	Nexperia
Package	DHVQFN-20-EP(2.5x4.5)
Category	Logic ICs
Pins	21

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Supply voltage	VCC	-0.5		4.6	V		4
Input voltage	VI	-0.5		7	V	[1]	4
Output voltage	VO	-0.5		7	V	output in OFF or HIGH state [1]	4
Input clamping current	IIK	-50			mA	VI < 0	4
Output clamping current	IOK	-50			mA	VO < 0	4
Output current LOW state	IO			128	mA	output in LOW state	4
Output current HIGH state	IO	-64			mA	output in HIGH state	4
Storage temperature	Tstg	-65		150	°C		4
Junction temperature	Tj			150	°C	[2]	4
Total power dissipation	Ptot			500	mW	Tamb = -40 °C to +85 °C	4
Supply voltage	VCC	2.7		3.6	V		4
Input voltage	VI	0		5.5	V		4
HIGH-level output current	IOH			-32	mA		4
LOW-level output current	IOL			32	mA		4
LOW-level output current	IOL			64	mA	current duty cycle ≤ 50 %; fi ≥ 1 kHz	4
Ambient temperature	Tamb	-40		85	°C	in free air	4
Input transition rise and fall rate	Δt/ΔV	0		10	ns/V	output enabled	4
Input clamping voltage	VIK	-1.2	-0.9		V	VCC = 2.7 V; IIK = -18 mA	5
HIGH-level input voltage	VIH	2			V		5
LOW-level input voltage	VIL			0.8	V		5
HIGH-level output voltage	VOH	-0.2	-0.1		V	VCC = 2.7 V to 3.6 V; IOH = -100 μA (min VCC - 0.2, typ VCC - 0.1)	5
HIGH-level output voltage	VOH	2.4	2.5		V	VCC = 2.7 V; IOH = -8 mA	5
HIGH-level output voltage	VOH	2	2.2		V	VCC = 3.0 V; IOH = -32 mA	5
LOW-level output voltage	VOL		0.1	0.2	V	VCC = 2.7 V; IOL = 100 μA	5
LOW-level output voltage	VOL		0.3	0.5	V	VCC = 2.7 V; IOL = 24 mA	5
LOW-level output voltage	VOL		0.25	0.4	V	VCC = 3.0 V; IOL = 16 mA	5
LOW-level output voltage	VOL		0.4	0.55	V	VCC = 3.0 V; IOL = 64 mA	5
Input leakage current, control pins	II		1	10	μA	control pins; VCC = 0 V or 3.6 V; VI = 5.5 V	5
Input leakage current, control pins	II	-1	0.1	1	μA	control pins; VCC = 3.6 V; VI = VCC or GND (typ ±0.1, limits ±1)	5
Input leakage current, I/O data pins	II		1	20	μA	I/O data pins; VCC = 3.6 V; VI = 5.5 V	5
Input leakage current, I/O data pins	II		0.1	1	μA	I/O data pins; VCC = 3.6 V; VI = VCC	5
Input leakage current, I/O data pins	II	-5	-1		μA	I/O data pins; VCC = 3.6 V; VI = 0 V	5
Power-off leakage current	IOFF	-100	1	100	μA	VCC = 0 V; VI or VO = 0 V to 4.5 V	5
Output leakage current	ILO		60	125	μA	VO = 5.5 V; VCC = 3.6 V; output HIGH	5
Power-up/power-down output current	IO(pu/pd)	-100	15	100	μA	VCC ≤ 1.2 V; VO = 0.5 V to VCC; VI = GND or VCC; OE = don't care [3]	5
Bus hold LOW current	IBHL	75	150		μA	VCC = 3.0 V; VI = 0.8 V [4]	5
Bus hold HIGH current	IBHH	-150	-75		μA	VCC = 3.0 V; VI = 2.0 V	5
Bus hold LOW overdrive current	IBHLO	500			μA	VCC = 0 V to 3.0 V; VI = 3.6 V	5
Bus hold HIGH overdrive current	IBHHO			-500	μA	VCC = 0 V to 3.0 V; VI = 3.6 V	5
Supply current, outputs HIGH	ICC		0.13	0.19	mA	VCC = 3.6 V; VI = VCC or GND; IO = 0 A; outputs HIGH	5
Supply current, outputs LOW	ICC		3	12	mA	VCC = 3.6 V; VI = VCC or GND; IO = 0 A; outputs LOW	5
Supply current, outputs disabled	ICC		0.13	0.19	mA	VCC = 3.6 V; VI = VCC or GND; IO = 0 A; outputs disabled	5
Additional supply current per input pin	ΔICC		0.1	0.2	mA	VCC = 3.0 V to 3.6 V; one input at VCC - 0.6 V, other inputs at VCC or GND [5]	5
Input capacitance	CI		4		pF	DIR and OE inputs; VI = 0 V or 3.0 V	5
Input/output capacitance	CI/O		10		pF	data pins, outputs disabled; VI/O = 0 V or 3.0 V	5
LOW to HIGH propagation delay	tPLH			4	ns	An to Bn or Bn to An; VCC = 2.7 V	6
LOW to HIGH propagation delay	tPLH	1.2	2.4	3.5	ns	An to Bn or Bn to An; VCC = 3.3 V ± 0.3 V	6
HIGH to LOW propagation delay	tPHL			4	ns	An to Bn or Bn to An; VCC = 2.7 V	6
HIGH to LOW propagation delay	tPHL	1.2	2.4	3.5	ns	An to Bn or Bn to An; VCC = 3.3 V ± 0.3 V	6
OFF-state to HIGH propagation delay	tPZH			7.1	ns	VCC = 2.7 V	6
OFF-state to HIGH propagation delay	tPZH	1.3	3.3	5.5	ns	VCC = 3.3 V ± 0.3 V	6
OFF-state to LOW propagation delay	tPZL			6.5	ns	VCC = 2.7 V	6
OFF-state to LOW propagation delay	tPZL	1.7	3.2	5.5	ns	VCC = 3.3 V ± 0.3 V	6
HIGH to OFF-state propagation delay	tPHZ			6.5	ns	VCC = 2.7 V	6
HIGH to OFF-state propagation delay	tPHZ	2.2	3.6	5.9	ns	VCC = 3.3 V ± 0.3 V	6
LOW to OFF-state propagation delay	tPLZ			5.1	ns	VCC = 2.7 V	6
LOW to OFF-state propagation delay	tPLZ	2.2	3.4	5	ns	VCC = 3.3 V ± 0.3 V	6

CAD (KiCad official)

Symbol: 74LVT245BBQ
Footprint: Package_DFN_QFN:DHVQFN-20-1EP_2.5x4.5mm_P0.5mm_EP1x3mm
3D model: DHVQFN-20-EP(2.5x4.5), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal VQFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
3D model files: 74lvt245bbq-etched.step / 74lvt245bbq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74lvt245bbq.step / 74lvt245bbq.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Nexperia datasheet (14 pp, sha256 25696bfb93a81d6d, retrieved 2026-10-30, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

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74LVT245BBQ

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