The 74 HC 4XXX are a whole series of ICs. There are several up / down counters in the range. You could try http://www.semiconductors.philips.com/pip/74HC_HCT192_CNV_2.html which would possibly be suitable. Chris ----- Original Message ----- From: "Augusto de Conto" To: Sent: Saturday, November 23, 2002 1:15 AM Subject: Encoder Counter I'd like a ic that counts pulses u/d from a encoder, installed in a motor. I heard about something called 74hc4000, But I never found it. Does anyone know any IC that does this? Thank Augusto de Conto -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu