Introduction

This user guide describes how to use the Microchip ATF15XX and ATF1500 device fitters with the ProChip Designer® and WinCUPL PLD development software tools. The ATF15XX family of Complex Programmable Logic Devices (CPLDs) includes the ATF1502, ATF1504 and ATF1508 devices, while the ATF1500 family includes the ATF1500A and ATF1500AL devices. The device fitters are used to place and route designs into ATF15XX or ATF1500 CPLDs and to generate JEDEC® files. This guide introduces the macrocell (MC) and device features of these CPLDs and provides a detailed description of the fitting process and available fitter options. Design examples are included to illustrate the features of the ATF15XX and ATF1500 families and the various fitter command options. Please note that the device fitter options for the ATF1500 (FIT1500) differ slightly from those available for the ATF15XX device fitters (FIT15XX).