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On the one hand, I really thought the ULN was always more expensive due to added features. One is that it has 8 lines in parallel. 74lx07
Transistors cost least but they aren’t in a DIP. Kramer, did you mean 74ld07 I am just try to figure out which contexts are useful to either protect the BasicStamp or to eliminate some of the more mundane work load. In concept, the point is that there are other driver ICs that offer interesting choices including latches and buffers that can be bidirectional. Sign In or Register to comment.
Quick Links Categories Recent Discussions. We mostly seem to expect the BasicStamp to do everything.
74LS07 Hex Buffer IC
Beau Schwabe — Submicron Forensic Engineer www. Actually, the ULN is the 7-output version we used to use. It is always sunny and warm 74lls07 But, I really want to focus on the IC packaged devices.
Everyone seems to turn to the ULN as a driver for several reasons. It can also easily adapt to driving relays and small motors.
Driver Chips and solutions – ULN2308 versus 74LS07 [or 74LS06]
Thank you for the correction because Googling the wrong number leads nowhere. Well, I seem to be hopeless at getting these IC numbers correct from memory.
All things considered, I can live and thrive without Microsoft products. And with the 74LS06, one can invert logic so that states of 74l0s7 cannot possibly conflict.
Comments 8 Comments sorted by Date Added Votes. Either way, if you burn a gate you lose the whole package. So I wonder why it is often ignored?
74LS07 Hex Buffer/Driver (Open Collector)
LINUX is just fine. Since the outputs are in 3-states, are they merely redundant or can be used creatively with a BasicStamp? Hwang Xian Shen, Puddleby-on-the-Marsh.
I suspect a lot of us overlook the meaning of ‘open collector’ when we are selecting 74ld07. Chris Savage Parallax Engineering Posts: But it will handle switching voltages up to 30volts and power up to 40ma.
On the other, the ULN is the easiest to wire up as the pin arrangement is quite clean. Post Edited Beau Schwabe Parallax: Each is paired and next to each other. Of course, if you really need power, the 2N remains even more useful. I personally feel the 74LS07 is a great protector of output 74s07 and a good driver for LEDs, especially the newer, brighter ones.