Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
74HC138N 是一款高性能的 3-to-8 译码器/去码器(decoder/demultiplexer),由 HGSEMI(华冠)生产,采用 DIP-16 封装。器件工作电压范围宽(2V~6V),适用于多种低压到传统 5V 的数字电路系统。器件内置使能端,输出为有源低(active LOW),常用于地址译码、片选驱动与信号分路。
74HC138N 通过三个地址输入(A、B、C)对八个输出(Y0–Y7)进行译码。当使能端满足激活条件时,输入的二进制编码将使对应的一个输出变为低电平,其余输出为高电平(有源低输出)。器件通常提供一个或多个使能引脚,用以实现总线上对译码器的选通/屏蔽。
DIP-16 封装便于面包板与插件式插装,适合开发与小批量应用。器件在正常使用范围内具有稳定的静态电流(典型 160 μA),低功耗特性使其在电池供电与低功耗系统中也具有实用价值。出厂选型时请确认所需电平、驱动能力与封装形式符合整体系统设计要求。
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Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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