PCA9540BD,118

Identity

Manufacturer: NXP(恩智浦)
Model / MPN: PCA9540BD,118
LCSC: C2674107
Category: i2c-mux
Description: 2-channel I2C bus multiplexer, 2.3V~5.5V supply, power-up/reset configuration.
Source: EasyEDA/JLC verified common component seed
Project designators: Not project-specific
Project quantity per board: Not project-specific

Capabilities

i2c: interface

Package And Footprint

Package / footprint name: SO-8
Pin count: Unknown
EasyEDA symbol UUID: 5de92f7a4020451da2979cf1dbf49e44
EasyEDA footprint UUID: 6cb17c4d6ea64f919e3fc116fa022eca
EasyEDA device UUID: 62586edb16a8446aa29b80731f6ea78d
EasyEDA library UUID: 0819f05c4eef4c71ace90d822a990e87

Power And Operating Modes

Active current: Not characterized in seed; extract active current from datasheet tables.
Sleep / standby current: Not characterized in seed; extract sleep/standby current from datasheet tables.
Supply rails: EasyEDA property: 2.3V~5.5V.
Notes: Seed values are search hints only. Verify power modes, rail limits, startup requirements, and reference design passives from the datasheet.

Procurement Classification

JLC class: Extended Part
JLC note / assembly basis: EasyEDA/JLC verified second-source/alternate seed for IC categories that only had one option
Assembly status: jlc_extended
Price-break table: Not captured in seed. Store only timestamped price-break snapshots when intentionally refreshed.
Live stock: intentionally not stored as durable selection data; refresh externally before ordering.

Datasheet And Links

Datasheet / product URL: https://www.nxp.com/docs/en/data-sheet/PCA9540B.pdf
Product URL: https://www.nxp.com/docs/en/data-sheet/PCA9540B.pdf
Datasheet-derived notes: Not extracted yet. Use PDF extraction to fill power modes, absolute maximums, pin functions, package variants, and reference design requirements.

Selection Notes

Good for: reuse when package, electrical ratings, footprint, and assembly class match the project constraints
Avoid when: Not captured yet.
Known layout constraints: Verify package land pattern, decoupling requirements, thermal pad, RF keepouts, crystal routing, and boot straps from the datasheet.
Equivalent search hints: match category i2c-mux, interfaces i2c, package SO-8, and EasyEDA footprint UUID 6cb17c4d6ea64f919e3fc116fa022eca.

Search Keywords

seed:common-single-option-category-expansion, source:easyeda-bridge, second-source, common-pcb, pca9540b, dual-channel, i2c, second-source-of:tca9548a, compact, i2c-mux, so-8, jlc-extended, jlc_extended, jlc-note:easyeda-jlc-verified-second-source-alternate-seed-for-ic-categories-that-only-had-one-option, power