C8051F040 single-chip schematic and pcb package, there is one point the book information. protel 99se open for development with 040 friends.

Packet : 5956451pcb.rar filelist
原理图 及pcb封装\c8051f040.Ddb
原理图 及pcb封装
read me.doc
单片机与嵌入式系统图书目录.doc

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