74LS181

74xx

Arithmetic logic unit

Symbol

24 pins
Schematic symbol for 74LS181
Units
1
Kind
part
Grid
on 1.27 mm

Footprint

none
no footprint linked

This symbol carries no usable footprint reference, so nothing is linked. Generating one is a better answer than guessing.

3D model

none
no 3D model

The footprint references no model, or the referenced model is not in the upstream package set.

Pins and pads

No footprint is linked, so there is nothing to cross-check.

PinNameType
1B0input
2A0input
3S3input
4S2input
5S1input
6S0input
7Cninput
8Minput
9F0output
10F1output
11F2output
12GNDpower_in
13F3output
14A=Boutput
15Xoutput
16Cn+4output
17Youtput
18B3input
19A3input
20B2input
21A2input
22B1input
23A1input
24VCCpower_in

On real boards

2 designs use this part

2 placed it by name in a schematic. Largest first.

  • DATA PATHSSchematic · 26 parts · 1 sheetby name
  • SH8Schematic · 18 parts · 1 sheetby name

Provenance

Credit
KiCad Libraries Contributors
Licence
CC-BY-SA-4.0-with-KiCad-exception
Link method
none
Cross-check
not confirmed