trouble with logic counters

[panfilero]

Hello, I'm trying to hook up a 74HCT163 to count from 0 to 7 then loop
and keep doing it. I'm having a lot of trouble making sense of the
data sheet on how to connect this thing. I have a 555 chip creating my
clock, it's lighting an LED right now, I took that from the positive
end of the LED and am running it into the counter. I was worried about
going straight from the 555 chip to the counter cause i've heard these
type of chips are fragile, real sensitive to too much current/voltage.
I'm powering the circuit with a 9 Volt battery, I'm splitting that in
half using a couple resistors (of equal value 10 Mohm) in series and
taking the voltage from one resisttor and using it as my high for the
counter. I've connected the pins in this way:

1 MR - high
2 CP - 555 output
3 P0 - high
4 P1 - high
5 P2 - high
6 P3 - high
7 PE - high
8 GND - ground
9 SPE - high
10 TE - high
11 Q3 - not used
12 Q2 - to a 1K resistor in series with an LED
13 Q1 - to a 1K resistor in series with an LED
14 Q0 - to a 1K resistor in series with an LED
15 TC - not used
16 Vcc - high

I can't get anything to happen, and can't tell what some of these pins
are even for. Any help with this would be greatly appreciated, thanks

 

[Michael A. Terrell]

panfilero wrote:

Hello, I'm trying to hook up a 74HCT163 to count from 0 to 7 then loop
and keep doing it. I'm having a lot of trouble making sense of the
data sheet on how to connect this thing. I have a 555 chip creating my
clock, it's lighting an LED right now, I took that from the positive
end of the LED and am running it into the counter. I was worried about
going straight from the 555 chip to the counter cause i've heard these
type of chips are fragile, real sensitive to too much current/voltage.
I'm powering the circuit with a 9 Volt battery, I'm splitting that in
half using a couple resistors (of equal value 10 Mohm) in series and
taking the voltage from one resisttor and using it as my high for the
counter. I've connected the pins in this way:

1 MR - high
2 CP - 555 output
3 P0 - high
4 P1 - high
5 P2 - high
6 P3 - high
7 PE - high
8 GND - ground
9 SPE - high
10 TE - high
11 Q3 - not used
12 Q2 - to a 1K resistor in series with an LED
13 Q1 - to a 1K resistor in series with an LED
14 Q0 - to a 1K resistor in series with an LED
15 TC - not used
16 Vcc - high

I can't get anything to happen, and can't tell what some of these pins
are even for. Any help with this would be greatly appreciated, thanks

Wrong newsgroup. This belongs in news:sci.electronics.basics


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[Michael Black]

"Michael A. Terrell" (mike.terrell@earthlink.net) writes:

Wrong newsgroup. This belongs in news:sci.electronics.basics

Which is the cue to point out that he did, along with sci.electronics.basics

and sci.electronics.misc and perhaps somewhere else.

ANd as always, it's bad enough that he hit so many newsgroups instead of
hitting just the one where it's most appropriate, but he did it by
posting separately to each of those newsgroups.

I do argue that there is rarely a reason fro cross-posting, but
if fools are going to hit multiple newsgroups at a time, they should
be cross-posting instead of multiple posting like he did.

The way he did it, he ends up with isolated discussions in each
of the newsgroups, with the same answers appearing yet also different
ones that nobody in the other newsgroups can respond to.

Michael