Monday, 20 May 2013

Problem with the 74160 decade counter

Problem with the 74160 decade counter

As I am experiencing with different TTL components, I am having a ton of trouble with the 74160 decade counter. I don't know if it's my inexperience or if I'm dealing with a malfunctioning IC, but the IC isn't doing what it's supposed to, and it heats up pretty darn fast (I always check for heating once I power up)
After some testing, I noted that all I have to do is connect the GND to ground and the +5V pin to 5V and it starts heating up fast. If I add a resistor connecting to ground, it doesn't heat up, but it heats up once I connect the remaining pins (as it stands, pins 7 and 8 are grounded, 9 and 16 are in +5). As soon as I power it up, all the outpins turn HIGH.
So here is what I'm wondering:
Do I ever need a resistor once a TTL datasheet tells me to connect such and such pins to ground or to +5V or can I connect them directly?
Can I conclude that my 74160 is short-circuited/malfunctioning?
Is there anything else I might be doing wrong?

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