It is good to know that PIC/8051/AVR can still do well even with 32bit ARMs now competing in the sub-US$3 market. With 0.16um process, the EMC/EMI performance of the LPC210x will be a question mark as well. Still the featute sets of the low cost LPC210x seems quite impressive. And it certainly has some great potentials to replace some higher-end 8-bit MCUs. 4mA is not a lot but an external transistor can be the solution here to drive other loads. For the push-pull IO drivers, I think iC-haus has some good offerings (http://www.ichaus.de). There are no integrated 1.8V supply though. Regards, Xiaofan -----Original Message----- From: William "Chops" Westfield Sent: Monday, October 03, 2005 12:05 PM To: Microcontroller discussion list - Public. Subject: Re: [EE] Low end LPC210x from US$1.47?! >> Philips Offers fastest ARM7-based microcontrollers to date with >> aggressive power management and Fast I/O capability Options What you save in chip cost you spend on (dual) voltage regulators and IO drivers (4mA IO ports, oh joy...) So does anyone offer the "obvious" companion analog chip that has 3.3V and 1.8V regulators and a couple medium-current push-pull drivers? (seems like the big packages designers put Vregs in to get sufficient power dissipation ought to have plenty of pins left over for a couple of drivers...) Some of the circuits designed for cell phones look pretty close, but not quite right... BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist