"Jim Thompson" schreef in
bericht ...
Anyone used a 74HC191 UP/DOWN Counter, 3-stages?
Is there a way I can limit Terminal Count to 10-Bit?
Thanks!
No real use, just need it as a behavioral counter for simulations ;-)
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice
480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine Sometimes I even put it in the food
As these are 4-bit counters you will need three of them. Each has its own TC
so to get a TC for the whole counter, you need to *AND* the TCs. To limit
the counter to 10 bits, you'll have to make your own TC for the two least
significant bits of the most significant chip.
|\ __
U/D-------+---| O---| |
| |/ | |
Q0----+--|----------|& |o---+
| | | | |
Q1--+-|--|----------|__| |
| | | | __
| | | +-| |
| | | |& |o-+ TC2
| | | +-|__| |
| | | __ | |
| | +----------| | | |
| | |\ | | | |
| +------| O---|& |o---+ |
| |\ |/ | | | __
+---| O--------|__| +-| |
|/ | |
TC1------------------------------------|& |--- TC10BIT
| |
TC0------------------------------------|__|
created by Andy´s ASCII-Circuit v1.24.140803 Beta
www.tech-chat.de
petrus bitbyter