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Generated by kicad-footprint-generator · KiCad file format 20260206

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docs	Publish 0.1.0 · Ray	7d ago
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README.md	Publish 0.1.0 · Ray	7d ago
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sn74ls145dr-etched.step	sn74ls145dr: factory component page (tier=mfr) · Ray	7d ago
sn74ls145dr-hero.glb	sn74ls145dr: hero GLB from the etched model (keeps the MPN mark) · Ray	7d ago
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sn74ls145dr.step	Publish 0.1.0 · Ray	7d ago

SN74LS145DR

Texas Instruments · Signal Switches, Multiplexers, Decoders · SOIC-16

SN74LS145DR from Texas Instruments, in a SOIC-16. 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	0	output	Open-collector output 0, active low (on) for BCD input 0000, 15 V off-state rating and 80 mA sink capability.
2	1	output	Open-collector output 1, active low (on) for BCD input 0001, 15 V off-state rating and 80 mA sink capability.
3	2	output	Open-collector output 2, active low (on) for BCD input 0010, 15 V off-state rating and 80 mA sink capability.
4	3	output	Open-collector output 3, active low (on) for BCD input 0011, 15 V off-state rating and 80 mA sink capability.
5	4	output	Open-collector output 4, active low (on) for BCD input 0100, 15 V off-state rating and 80 mA sink capability.
6	5	output	Open-collector output 5, active low (on) for BCD input 0101, 15 V off-state rating and 80 mA sink capability.
7	6	output	Open-collector output 6, active low (on) for BCD input 0110, 15 V off-state rating and 80 mA sink capability.
8	GND	power_in	Ground terminal; all voltage values are referenced to it.
9	7	output	Open-collector output 7, active low (on) for BCD input 0111, 15 V off-state rating and 80 mA sink capability.
10	8	output	Open-collector output 8, active low (on) for BCD input 1000, 15 V off-state rating and 80 mA sink capability.
11	9	output	Open-collector output 9, active low (on) for BCD input 1001, 15 V off-state rating and 80 mA sink capability.
12	D	input	BCD input D (most significant bit), one Series 74LS standard load, 5.5 V max input voltage.
13	C	input	BCD input C, one Series 74LS standard load, 5.5 V max input voltage.
14	B	input	BCD input B, one Series 74LS standard load, 5.5 V max input voltage.
15	A	input	BCD input A (least significant bit), one Series 74LS standard load, 5.5 V max input voltage.
16	VCC	power_in	Supply voltage, 7 V absolute maximum.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-16
Category	Logic
Pins	16

CAD (KiCad official)

Symbol: SN74LS145DR
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)
3D model files: sn74ls145dr-etched.step / sn74ls145dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls145dr.step / sn74ls145dr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (18 pp, sha256 a973c320238235be, retrieved 2026-10-21, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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