Justin Owen wrote: > ...is there a 'better' option than the generic 74HC595? If you have a micro then Maxim do some very nice I/O expanders, such as the MAX7300 I2C expander (7301 for SPI) with up to 28 I/Os that can sink up to 10mA. Or the MAX6956 for driving heavier loads. Neil -- http://www.njohnson.co.uk