cmos - ttl problem
cmos - ttl problem
(OP)
I have to connect this temperature sensor to the PCs parallel port. So I connect the sensor to adc0804, which I think is CMOS based. Next I need to connect the 8 bits to the PCs parallel port. So I use 2 quad bus buffers, 74125. The buffer is ttl-based. The pc's parallel port considers 5V as on and 0V as off. So theres nothing wrong with the buffer.
But how can i connect the ADC0804 with the rest of the ttl-based circuit.
But how can i connect the ADC0804 with the rest of the ttl-based circuit.





RE: cmos - ttl problem
Suggest you find a book on the IBM PC hardware.
RE: cmos - ttl problem
Otherwise, what would be the point of using bus drivers to drive loads you can't drive, if you can't even drive the bus driver?
TTFN
RE: cmos - ttl problem
What about using a fast USB? Visit
http://www.picotech.com/data.html#temp
RE: cmos - ttl problem