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SN74AUP2G126DCUR

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Texas Instruments Buffer/Driver/Transceiver, VSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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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