This is the EMDP3 adaptors section of the EMDP3 project and it is currently a work in progress.

EMDP3 Adaptors

Introduction

There is basically one adaptor for each different kind of deviced package out there.

DIP48Z (DIP 64 - ZIF)
This is the work horse adaptor for the EMDP3 system. This one can support 40 and 48 pin ZIF (Zero Insertion Force) DIP sockets. Many people will choose to buy a less expensive 40 pin ZIF socket instead of the more expensive 48 pin ZIF sockets to save money.
PLCC84S (PLCC 84 - Socket)
Since a good PLCC ZIF socket is quite expensive, this adaptor board avoids the problem by using a standard PLCC socket instead. Since the PLCC socket is not really rated for as many insertions and removals as a ZIF socket, the adaptor will wear out faster. When a socket wears out, the owner has the option of removing the current socket and replacing it with a new one, or simply purchasing a whole new adaptor. The board has a 7 sockets on it, one for PLCC20, PLCC28, PLCC32, PLCC44, PLCC52, PLCC68, and PLCC84.
PLCC84Z (PLCC 84 - ZIF)
This adaptor uses an expensive zero insertion force socket for programming PLCC chips of size 20, 28, 32, 44, 52, 68, and 84. It is unlikely that this adaptor will ever wear out. It is based on the Aries 537 "Live Bug" PLQCC adaptor. `
SOIC44Z (SOIC 44 - ZIF)
This adaptor uses SOIC ZIF socket (base on the Aries 339 ZIF socket.) This supports SOIC with leads on a .050 inch pitch.
PGA441Z (PGA 441 - ZIF)
This an adaptor that uses a 21×21 pin grid array zero insertion force socket. Smaller chips can be plugged into the upper left corner. The printed circuit board for this adaptor must be multiple layers in order to get access to all of the pins.


Copyright (c) 2003 by Wayne C. Gramlich. All rights reserved.