SN74LS07DR from Texas Instruments, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	1A	input	Input of buffer 1. TTL-compatible input, tolerant up to 5.25 V. VIH = 2 V min, VIL = 0.8 V max.
2	1Y	output	Open-collector non-inverting output of buffer 1. Rated up to 30 V in the off state, sink current up to 40 mA. Requires external pull-up resistor.
3	2A	input	Input of buffer 2. TTL-compatible input, tolerant up to 5.25 V.
4	2Y	output	Open-collector non-inverting output of buffer 2. Rated up to 30 V, IOL up to 40 mA. External pull-up required.
5	3A	input	Input of buffer 3. TTL-compatible input, tolerant up to 5.25 V.
6	3Y	output	Open-collector non-inverting output of buffer 3. Rated up to 30 V, IOL up to 40 mA. External pull-up required.
7	GND	power_in	Ground reference pin (0 V). All voltages in the datasheet are referenced to GND.
8	4Y	output	Open-collector non-inverting output of buffer 4. Rated up to 30 V, IOL up to 40 mA. External pull-up required.
9	4A	input	Input of buffer 4. TTL-compatible input, tolerant up to 5.25 V.
10	5Y	output	Open-collector non-inverting output of buffer 5. Rated up to 30 V, IOL up to 40 mA. External pull-up required.
11	5A	input	Input of buffer 5. TTL-compatible input, tolerant up to 5.25 V.
12	6Y	output	Open-collector non-inverting output of buffer 6. Rated up to 30 V, IOL up to 40 mA. External pull-up required.
13	6A	input	Input of buffer 6. TTL-compatible input, tolerant up to 5.25 V.
14	VCC	power_in	Positive supply voltage. Recommended operating range 4.75 V to 5.25 V (nominal 5 V); absolute maximum 7 V. Bypass with a 0.1-uF ceramic capacitor placed close to the pin.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-14
Category	Logic
Pins	14

Ordering variants

Same part, different packaging or reel option.

SN74LS07DRD
SN74LS07DR
SN74LS07DRDB
SN74LS07DRN
SN74LS07DRNS

CAD (KiCad official)

Symbol: SN74LS07DR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sn74ls07dr.step`	195 KB	You want the bare part, or you mark your own boards.
`sn74ls07dr-etched.step`	2.2 MB	You want the part with `SN74LS07DR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 568 faces against 237 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Texas Instruments datasheet (25 pp, sha256 031463b89e6d2a62, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF