Check out www.zworld.com they produce a full line of Z180 based microcontrollers that are VERY nice. I have used their Micro-G on several projects and love it! Tech America currently sells several starter kits or order direct just what you need Mark. -----Original Message----- From: William Chops Westfield [SMTP:billw@CISCO.COM] Sent: Monday, September 08, 1997 11:42 AM To: PICLIST@MITVMA.MIT.EDU Subject: Re: How to change locations? Z80! A real blast from the past there. Did Zilog ever make a controller with that instruction set and microcontroller features? Yes, the 64HD180, or something like that. Nice processor, covered pretty extensively in Circuit Cellar over that last dew years. I believe it was only done in relatively full-blown versions - 48 pins up, with built in bank switching and dram controller, I think. CPM on a chip, a little too late. BillW