Hi to all engineers and happy new year. I have to drive 128 small motor thru small bridge driver. each motor needs 2 wires and I only have 8 pins available. all I have to do is select the motor and update the direction. I plane to use 74hc373 that it can latch while I am selecting different pair. In this case I am going to need 32 latches connected to the PIC 8 pin bus and thru chip select update the status. My question is can I connect 32 logic directly to pic port or I may need to connect thru buffer. sorry I forgot to mention that I have keypad and lcd connected to other ports. I am using 18F4520 any idea or recommendation will appreciate. Andre -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist