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SN74AUP2G126DCUR

Texas Instruments · Buffer/Driver/Transceiver · VSSOP-8

SN74AUP2G126DCUR from Texas Instruments, in a VSSOP-8. 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	1OE	input	Output-enable input for channel 1; outputs are disabled (high-impedance) when low, and OE should be tied to GND through a pulldown resistor to ensure high-Z during power up or down.
2	1A	input	Channel 1 data input, 3.6-V tolerant, with input-disable feature allowing floating input and input hysteresis; must be held at VCC or GND if unused.
3	2Y	tri_state	Channel 2 3-state buffer output that follows 2A when 2OE is high and is high-impedance when 2OE is low.
4	GND	power_in	Ground pin.
5	2A	input	Channel 2 data input, 3.6-V tolerant, with input-disable feature allowing floating input and input hysteresis; must be held at VCC or GND if unused.
6	1Y	tri_state	Channel 1 3-state buffer output that follows 1A when 1OE is high and is high-impedance when 1OE is low.
7	2OE	input	Output-enable input for channel 2; outputs are disabled (high-impedance) when low, and OE should be tied to GND through a pulldown resistor to ensure high-Z during power up or down.
8	VCC	power_in	Supply voltage pin, recommended operating range 0.8 V to 3.6 V (absolute maximum 4.6 V).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	VSSOP-8
Category	Logic ICs
Pins	8

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	0.8		3.6	V		4
Operating free-air temperature	TA	-40		85	°C		4
High-level input voltage	VIH	2		3.6	V	VCC = 3 V to 3.6 V	4
Low-level input voltage	VIL	0		0.9	V	VCC = 3 V to 3.6 V	4
Input transition rise or fall rate	Δt/Δv			200	ns/V	VCC = 0.8 V to 3.6 V	4
High-level output current	IOH	-4			mA	VCC = 3 V	4
Low-level output current	IOL			4	mA	VCC = 3 V	4
Supply voltage range	VCC	-0.5		4.6	V		3
Input voltage range	VI	-0.5		4.6	V		3
Output voltage range in high-impedance or power-off state	VO	-0.5		4.6	V		3
Output voltage range in high or low state	VO	-0.5		3.6	V	VCC + 0.5 V max	3
Input clamp current	IIK	-50			mA	VI < 0	3
Output clamp current	IOK	-50			mA	VO < 0	3
Continuous output current	IO	-20		20	mA	±20 mA	3
Continuous current through VCC or GND		-50		50	mA	±50 mA	3
Storage temperature range	Tstg	-65		150	°C		3
Package thermal impedance	θJA		227		°C/W	DCU package	3
High-level output voltage	VOH	2.55			V	IOH = -4 mA, VCC = 3 V, TA = -40°C to 85°C	5
High-level output voltage	VOH	2.67			V	IOH = -2.7 mA, VCC = 3 V, TA = -40°C to 85°C	5
Low-level output voltage	VOL			0.45	V	IOL = 4 mA, VCC = 3 V, TA = -40°C to 85°C	5
Low-level output voltage	VOL			0.1	V	IOL = 20 μA, VCC = 0.8 V to 3.6 V, TA = -40°C to 85°C	5
Input current (A or OE input)	II			0.5	μA	VI = GND to 3.6 V, VCC = 0 V to 3.6 V, TA = -40°C to 85°C	5
Off-state current	Ioff			0.6	μA	VI or VO = 0 V to 3.6 V, VCC = 0 V, TA = -40°C to 85°C	5
Off-state current delta	ΔIoff			0.9	μA	VI or VO = 0 V to 3.6 V, VCC = 0 V to 0.2 V, TA = -40°C to 85°C	5
Off-state output current	IOZ			0.5	μA	VO = VCC or GND, VCC = 3.6 V, TA = -40°C to 85°C	5
Supply current	ICC			0.9	μA	VI = GND or (VCC to 3.6 V), OE = VCC, IO = 0, VCC = 0.8 V to 3.6 V, TA = -40°C to 85°C	5
Supply current change, A input	ΔICC			50	μA	VI = VCC, 0.6 V, IO = 0, VCC = 3.3 V, TA = -40°C to 85°C	5
Supply current change, OE input	ΔICC			120	μA	VI = VCC, 0.6 V, IO = 0, VCC = 3.3 V, TA = -40°C to 85°C	5
Propagation delay A to Y	tpd	0.5		9.9	ns	CL = 5 pF, VCC = 3.3 V ± 0.3 V, TA = -40°C to 85°C	6
Propagation delay A to Y	tpd	0.7		8.6	ns	CL = 30 pF, VCC = 3.3 V ± 0.3 V, TA = -40°C to 85°C	7
Enable time OE to Y	ten	0.5		9.3	ns	CL = 5 pF, VCC = 3.3 V ± 0.3 V, TA = -40°C to 85°C	6
Disable time OE to Y	tdis	0.5		9.3	ns	CL = 5 pF, VCC = 3.3 V ± 0.3 V, TA = -40°C to 85°C	6
Input capacitance	CI		2		pF	VI = VCC or GND, VCC = 3.6 V	5
Output capacitance	Co		3		pF	VO = VCC or GND, VCC = 3.6 V	5
Power dissipation capacitance, outputs enabled	Cpd		4		pF	f = 10 MHz, VCC = 3.3 V ± 0.3 V, TA = 25°C	8

CAD (KiCad official)

Symbol: SN74AUP2G126DCUR
Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
3D model: VSSOP-8 (KiCad packages3D, STEP)
3D model files: sn74aup2g126dcur-etched.step / sn74aup2g126dcur-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74aup2g126dcur.step / sn74aup2g126dcur.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (30 pp, sha256 ab56e5ffac1fff2e, retrieved 2026-10-22, tier: lcsc)
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).

Datasheet PDF