74LS21

74xx

Dual 4-input AND

Symbol

12 pins

Schematic symbol for 74LS21

Units: 3
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.

Pin	Name	Type
1	—	input
2	—	input
4	—	input
5	—	input
6	—	output
7	GND	power_in
8	—	output
9	—	input
10	—	input
12	—	input
13	—	input
14	VCC	power_in

On real boards

14 designs use this part

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

NeoPixel Punk ConsoleSchematic · 72 parts · 1 sheetby name
RC2014 Cv Megacart RamSchematic · 65 parts · 1 sheetby name
JerrySchematic · 51 parts · 1 sheetby name
CPU 8 Bit ComputerSchematic · 48 parts · 1 sheetby name
CPU 8 Bit ComputerSchematic · 47 parts · 1 sheetby name
VZ200 ComputerSchematic · 40 parts · 1 sheetby name
P2000T I/O Port CartridgeSchematic · 40 parts · 1 sheetby name
SimulSchematic · 34 parts · 1 sheetby name
YARC Flag LogicSchematic · 34 parts · 1 sheetby name
6502-MIDI-Controller-CardSchematic · 21 parts · 1 sheetby name
DragonATXProtoUARTSchematic · 18 parts · 1 sheetby name
HD6309sbcSchematic · 17 parts · 1 sheetby name
Takuan NlpSchematic · 9 parts · 1 sheetby name
EDUC8Schematic · 8 parts · 1 sheetby name

Provenance

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