74LS257

74xx

Quad 2 to 1 Multiplexer

Symbol

16 pins

Schematic symbol for 74LS257

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.

Pin	Name	Type
1	S	input
2	I0a	input
3	I1a	input
4	Za	tri_state
5	I0b	input
6	I1b	input
7	Zb	tri_state
8	GND	power_in
9	Zd	tri_state
10	I1d	input
11	I0d	input
12	Zc	tri_state
13	I1c	input
14	I0c	input
15	OE	input
16	VCC	power_in

On real boards

15 designs use this part

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

ZX SpectrumSchematic · 72 parts · 1 sheetby name
String Drum SynthesizerSchematic · 62 parts · 1 sheetby name
Game Controller Interface for RC2014Schematic · 57 parts · 1 sheetby name
DRAMCTRLSchematic · 46 parts · 1 sheetby name
PCPI 88CardSchematic · 43 parts · 1 sheetby name
Z8C Homebrew ComputerSchematic · 33 parts · 1 sheetby name
Aleste 520EXSchematic · 30 parts · 1 sheetby name
Central Processing UnitSchematic · 29 parts · 1 sheetby name
Apple II+ SchematicSchematic · 25 parts · 1 sheetby name
AVRbrainSchematic · 21 parts · 1 sheetby name
6809PCSchematic · 19 parts · 1 sheetby name
Apple II+ SchematicSchematic · 19 parts · 1 sheetby name
Schematic, Main Logic Board, 128kSchematic · 14 parts · 1 sheetby name
Z8C Homebrew ComputerSchematic · 13 parts · 1 sheetby name
Z8C Homebrew ComputerSchematic · 11 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