CAUC1G125MDCKREP from Texas Instruments, in a SC-70-5. 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	OE	input	Output-enable input: the output is disabled (high impedance) when OE is high, and OE should be tied to VCC through a pullup resistor to ensure high impedance during power up or power down.
2	A	input	Data input of the single-line buffer, with a 3.6-V I/O tolerant input range of 0 V to 3.6 V.
3	GND	power_in	Ground reference for the device; all unused inputs must be held at VCC or GND for proper operation.
4	Y	tri_state	Three-state buffer output, rated for a continuous output current of ±20 mA, with partial-power-down (Ioff) protection that prevents current backflow when the device is powered down.
5	VCC	power_in	Supply voltage: operational from 0.8 V to 2.7 V (recommended), designed specifically for 1.65 V to 1.95 V operation, with an absolute maximum of -0.5 V to 3.6 V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SC-70-5
Category	Logic ICs
Pins	5

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		2.7	V		2
Input voltage	VI	0		3.6	V		3
Output voltage	VO	0			V		3
High-level input voltage	VIH	1.7			V	VCC = 2.3 V to 2.7 V	2
Low-level input voltage	VIL			0	V	VCC = 0.8 V	3
Low-level input voltage	VIL			0.7	V	VCC = 2.3 V to 2.7 V	3
High-level output current	IOH			-0.7	mA	VCC = 0.8 V	3
High-level output current	IOH			-3	mA	VCC = 1.1 V	3
High-level output current	IOH			-5	mA	VCC = 1.4 V	3
High-level output current	IOH			-8	mA	VCC = 1.65 V	3
High-level output current	IOH			-9	mA	VCC = 2.3 V	3
Low-level output current	IOL			0.7	mA	VCC = 0.8 V	3
Low-level output current	IOL			3	mA	VCC = 1.1 V	3
Low-level output current	IOL			5	mA	VCC = 1.4 V	3
Low-level output current	IOL			8	mA	VCC = 1.65 V	3
Low-level output current	IOL			9	mA	VCC = 2.3 V	3
Input transition rise or fall rate	Δt/Δv			20	ns/V	VCC = 0.8 V to 1.6 V	3
Input transition rise or fall rate	Δt/Δv			10	ns/V	VCC = 1.65 V to 1.95 V	3
Input transition rise or fall rate	Δt/Δv			3	ns/V	VCC = 2.3 V to 2.7 V	3
Operating free-air temperature	TA	-55		125	°C		3
Supply voltage range	VCC	-0.5		3.6	V		2
Input voltage range	VI	-0.5		3.6	V		2
Voltage range applied to any output in the high-impedance or power-off state	VO	-0.5		3.6	V		2
Output voltage range	VO	-0.5			V		2
Input clamp current	IIK	-50			mA	VI < 0 V	2
Output clamp current	IOK	-50			mA	VO < 0 V	2
Continuous output current	IO	-20		20	mA		2
Continuous current through VCC or GND		-100		100	mA		2
Storage temperature range	Tstg	-65		150	°C		2
Package thermal impedance	θJA		252		°C/W		2
High-level output voltage	VOH	0.55			V	IOH = -0.7 mA, VCC = 0.8 V	4
High-level output voltage	VOH	0.8			V	IOH = -3 mA, VCC = 1.1 V	4
High-level output voltage	VOH	1			V	IOH = -5 mA, VCC = 1.4 V	4
High-level output voltage	VOH	1.2			V	IOH = -8 mA, VCC = 1.65 V	4
High-level output voltage	VOH	1.8			V	IOH = -9 mA, VCC = 2.3 V	4
Low-level output voltage	VOL			0.2	V	IOL = 100 µA, VCC = 0.8 V to 2.7 V	4
Low-level output voltage	VOL			0.25	V	IOL = 0.7 mA, VCC = 0.8 V	4
Low-level output voltage	VOL			0.3	V	IOL = 3 mA, VCC = 1.1 V	4
Low-level output voltage	VOL			0.4	V	IOL = 5 mA, VCC = 1.4 V	4
Low-level output voltage	VOL			0.45	V	IOL = 8 mA, VCC = 1.65 V	4
Low-level output voltage	VOL			0.6	V	IOL = 9 mA, VCC = 2.3 V	4
Input current	II	-5		5	µA	A or OE input, VI = VCC or GND, VCC = 0 V to 2.7 V	4
Power-off leakage current	Ioff	-10		10	µA	VI or VO = 2.7 V, VCC = 0 V	4
Off-state output current	IOZ	-10		10	µA	VO = VCC or GND, VCC = 2.7 V	4
Quiescent supply current	ICC			10	µA	VI = VCC or GND, IO = 0, VCC = 0.8 V to 2.7 V	4
Propagation delay time A to Y	tpd	0.8		7.5	ns	VCC = 1.2 V ± 0.1 V, CL = 30 pF	4
Propagation delay time A to Y	tpd	0.4		6	ns	VCC = 1.5 V ± 0.1 V, CL = 30 pF	4
Propagation delay time A to Y	tpd	0.7	5	5.5	ns	VCC = 1.8 V ± 0.15 V, CL = 30 pF	4
Propagation delay time A to Y	tpd	0.9		5	ns	VCC = 2.5 V ± 0.2 V, CL = 30 pF	4
Enable time OE to Y	ten	0.7		7.8	ns	VCC = 1.2 V ± 0.1 V, CL = 30 pF	4
Enable time OE to Y	ten	0.5		7	ns	VCC = 1.5 V ± 0.1 V, CL = 30 pF	4
Enable time OE to Y	ten	1	5.5	6.5	ns	VCC = 1.8 V ± 0.15 V, CL = 30 pF	4
Enable time OE to Y	ten	1.1		5	ns	VCC = 2.5 V ± 0.2 V, CL = 30 pF	4
Disable time OE to Y	tdis	1.4		8.3	ns	VCC = 1.2 V ± 0.1 V, CL = 30 pF	4
Disable time OE to Y	tdis	1.4		7	ns	VCC = 1.5 V ± 0.1 V, CL = 30 pF	4
Disable time OE to Y	tdis	1.8	6	6.8	ns	VCC = 1.8 V ± 0.15 V, CL = 30 pF	4
Disable time OE to Y	tdis	0.8		6	ns	VCC = 2.5 V ± 0.2 V, CL = 30 pF	4

CAD (KiCad official)

Symbol: CAUC1G125MDCKREP
Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
3D model: SC-70-5 (KiCad packages3D, STEP)
3D model files: cauc1g125mdckrep-etched.step / cauc1g125mdckrep-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cauc1g125mdckrep.step / cauc1g125mdckrep.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (10 pp, sha256 87b97544a032b09f, retrieved 2026-10-31, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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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CAUC1G125MDCKREP

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