Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HT42B564-1 是 HOLTEK(台湾合泰/盛群)的一款 USB 转 UART 类型的转换芯片,采用 SOP-10 封装,适用于将主机 USB 接口与 MCU 或串口外设之间进行数据桥接。该器件工作电压范围宽(3.3V ~ 5.5V),可在 3.3V 与 5V 系统中直接使用,便于在多种嵌入式平台中集成。
HT42B564-1 采用 SOP-10 封装,典型引脚包括电源、地、USB 差分对、UART TX/RX 等(具体引脚功能与排列请以官方数据手册为准)。在原理图和 PCB 布局前,务必参照完整版引脚图与推荐 PCB 布局示意,避免引脚误连或布局不良导致功能异常。
在产品选型与电路设计过程中,强烈建议下载并详读 HOLTEK 的官方数据手册与应用笔记,查验工作电压、最大容许电流、IO 耐压与环境规范等关键参数。如需进一步的原理接线参考、驱动程序或样片评估,可联系 HOLTEK 当地代理或可靠的元器件供应商获取支持与测试资料。
Request for quote
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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