替代汤铭FE1.1S-BQFN24国产芯片NS1.1S-QFN24简介

随着扩展坞产品的发展，许多客户不得不面临需要降低成本的需求，在方案中USB2.0 HUB芯片属于不可或缺的的一部分，早些年基本采用的都是台湾汤铭FE1.1S或者FE8.1，原厂提供有三种封装形式SSOP28/SSOP16/QFN24。新域半导体推出的NS1.1S和NS8.1可以完美替代汤铭的料号，成本可以降低50%，让我们一起看看芯片的简要描述。


1.0 Description
Compliant to USB specification Revision 2.0
- Support 4/3/2 downstream ports by I/O pin configuration
- Upstream port supports both high-speed (HS) and full-speed (FS) traffic- Downstream ports support HS, FS, and low-speed (LS) traffic
On-chip 8-bit micro-processor
-RISC-like architecture
- USB optimized instruction set
Single 'Transaction Translator (STT)
- Single TT shares the same TT control logics for all downstream port devices. This is the most cost
effective solution for TT. Multiple TT provides individual TT control logics for each downstream port.This is a performance better choice for USB 2.0 hub
Integrate USB 2.0 transceiver
Each downstream port supports two-color status indicator, with automatic and manual modes compliant toUSB specification Revision 2.0
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