AN2674 PCB为SPEAr3xx的布局准则

AN2674 PCB为SPEAr3xx的布局准则

AN2674
Application note

PCB layout guidelines for SPEAr3xx

Introduction
SPEAr3xx is a 15 x15 mm LFBGA289 device family with 0.8 mm ball pitch. The SPEAr3xx
family includes SPEAr300, SPEAr310 and SPEAr320.
SPEAr3xx devices all feature the ARM926 core running at up to 333 MHz, an external
DDR2 memory interface and a configurable set of powerful on-chip peripherals.
This application note provides guidelines for successfully designing the PCB layout for
SPEAr3xx applications. It covers the following main topics:
■ P