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SN74LS14NSR

Texas Instruments · Inverters · SOIC-14-208mil

SN74LS14NSR from Texas Instruments, in a SOIC-14-208mil. 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	1A	input	Schmitt-trigger inverter input for Channel 1; input voltage range 0 V to 7 V (absolute maximum).
2	1Y	output	Inverted output for Channel 1; sources 0.4 mA at high level and sinks 8 mA at low level.
3	2A	input	Schmitt-trigger inverter input for Channel 2; input voltage range 0 V to 7 V (absolute maximum).
4	2Y	output	Inverted output for Channel 2; sources 0.4 mA at high level and sinks 8 mA at low level.
5	3A	input	Schmitt-trigger inverter input for Channel 3; input voltage range 0 V to 7 V (absolute maximum).
6	3Y	output	Inverted output for Channel 3; sources 0.4 mA at high level and sinks 8 mA at low level.
7	GND	power_in	Ground return; zero voltage reference potential for the device.
8	4Y	output	Inverted output for Channel 4; sources 0.4 mA at high level and sinks 8 mA at low level.
9	4A	input	Schmitt-trigger inverter input for Channel 4; input voltage range 0 V to 7 V (absolute maximum).
10	5Y	output	Inverted output for Channel 5; sources 0.4 mA at high level and sinks 8 mA at low level.
11	5A	input	Schmitt-trigger inverter input for Channel 5; input voltage range 0 V to 7 V (absolute maximum).
12	6Y	output	Inverted output for Channel 6; sources 0.4 mA at high level and sinks 8 mA at low level.
13	6A	input	Schmitt-trigger inverter input for Channel 6; input voltage range 0 V to 7 V (absolute maximum).
14	VCC	power_in	Positive power supply; recommended voltage 4.75 V to 5.25 V for operation at 0 to 70°C.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-14-208mil
Category	Logic
Pins	14

CAD (KiCad official)

Symbol: SN74LS14NSR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14-208mil (KiCad packages3D, STEP)
3D model files: sn74ls14nsr-etched.step / sn74ls14nsr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls14nsr.step / sn74ls14nsr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (39 pp, sha256 059f7041c38abb52, retrieved 2026-10-07, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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