The pinout tag has no wiki summary.
3
votes
1answer
36 views
What does the RNF pin do on an H-bridge?
The H-bridge in question is a BD6212FP. Pins 7 and 8 are marked "RNF". Below is a link to the datasheet.
http://www.farnell.com/datasheets/46169.pdf
-2
votes
0answers
44 views
How do I figure out the pin usage of a power supply? [closed]
I have a broken power supply brick for an appliance. It has a 5 pin DIN connector and the label says it was OUTPUT:5VDC/1A. At least that's what I think is broken ...
5
votes
2answers
128 views
What's an alternate pin function on a microcontroller?
I'd like to know what "Alternative Function" refers to in the context of the IO ports of a microcontroller.
I don't need to know how to activate it when connecting to a peripherial, but I'd like to ...
1
vote
0answers
63 views
Alarm Clock 7 Segment LED display
I recently got an alarm clock from goodwill and took it apart and am probably going to use the display for some tests. Here is a picture of the front of the display:
The text on the left is ...
2
votes
1answer
77 views
What is the metal sheath surrounding a USB connector, and is it commonly connected?
I was tearing apart a mouse for repairs and noticed that the small plug for the USB connection had a fifth connection. This connection had a much thicker wire than the other four.
I assume it is ...
0
votes
2answers
133 views
How to determine the pinout of this connector?
I am sorry for the potentially awkward question, but does anyone know how I can figure out how this 9-pin serial is wired, without tearing it apart?
Am I supposed to be able to see how it is wired by ...
2
votes
6answers
124 views
Identifying pin numbers from PCB
I have a PCB with documentation. In the documentation, there is referred to specific pins of several jumpers and connectors. On the PCB however, there isn't a label or so for which pin has what ...
0
votes
2answers
82 views
Newb Voltage regulator pin-out question
So I just put my first complicated circuit together and of coarse it doesn't work, good news is I found the problem.
Given a LA5752 voltage regulator I assumed the hookup was pin1->Vin, pin3->GND and ...
1
vote
2answers
127 views
4 pin microphone SMD pinout indentification
Is there any way to "guess" what's the pinout for microphone without damaging it?
Better yet do you know what's the pinout for this? (I have searched on the web but most no site provide schematics. ...
0
votes
1answer
175 views
24v brushless DC Driver Pinout
I have some Brushless DC Motors with drivers and I need some help finding the pinout of the drivers.
Please take a moment to view the pictures here, clicking on a picture will show its ...
4
votes
1answer
245 views
Why JTAG connectors are available in 10pins/14pins/20pins when JTAG is of 5pins
AFAIK, JTAG is requires 5 pins (Wikipedia article):
TDI (Test Data In)
TDO (Test Data Out)
TCK (Test Clock)
TMS (Test Mode Select)
TRST (Test Reset) optional.
Let's add two more Power supply Pins ...
10
votes
6answers
741 views
Is there any definitive I2C pin-out guidance out there? Not looking for a “STANDARD”
EDIT: This has been repeated several times, so putting it on top: Yes, it is well known that there is no "standard" for I2C inter-device connectors, but surely this community can formulate a list of ...
1
vote
2answers
341 views
male-male VGA cable wiring
I need to build a VGA cable (assemble connectors to wire).
I need a male-male cable.
Is its wiring straight or cross? (should i connect 1-1,2-2,... or something else)
Thanks
3
votes
2answers
473 views
Identifying Pins of an Unknown LCD
I got a LCD removed from some device. I need to check whether it is working. But the thing is I only have the LCD, no datasheet or any documentation regarding that.
I have an Arduino mega 2560. I'm ...
5
votes
2answers
114 views
Power consumption of unimplemented pins?
New versions of TI's Code composer studio have a lint-like tool which checks the code and provides recommendations on how to modify the code to decrease power consumption. One of the things I've ...
1
vote
1answer
1k views
What is the pinout for HTC One X docks?
I used to have a Motorola Milestone which used magnets to detect car and desktop docks.
I've now got an HTC One X and am looking for dock options. The standard ones look pretty expensive, but there ...
5
votes
2answers
776 views
Which pair of an Ethernet cable does a router transmit on?
I've seen numerous articles about straight-through and crossover cables and why they are needed. With conventional straight-through cabling, one device transmits on pair 2 (pins 3 and 6) while the ...
2
votes
2answers
531 views
Can't figure out this seven segment display
I recently bought four of these seven segment displays: http://www.electrokit.com/en/leddisplay-7segment-58mm-red-green-ca.49450
I'm having no luck however to make it to work, and since there is no ...
1
vote
1answer
165 views
Help identifying connections on Kyosan KE750 power supply
I recently picked up a used 12V power supply for dirt cheap. It is a Kyosan KE750. I've searched the Internet for a manual, but have not been able to find any.
Yes, I have plugged it in, and it ...
2
votes
0answers
151 views
What is the usage of 3rd lead in mobile batteries [duplicate]
Possible Duplicate:
Why we have 3 pins on some batteries?
I'm trying to build (DIY) open charger for mobile battery. I would like to know what is the usage the middle one?
Is there ...
5
votes
2answers
207 views
Option to fail Xilinx process if pins are unconstrained
I am using Xilinx WebPack 13.2 and I recall there being a setting to force the Xilinx process to fail if a top level input/output net isn't constrained to a pin. I would like for the process to fail ...
0
votes
1answer
248 views
Symbols on aux sockets for old hifi [closed]
I have an old communist era E.European 'hifi' which I would like to connect a turntable too. There are three DIN socket inputs on the amp, and I assume one of them must be able to receive the phono ...
4
votes
1answer
301 views
Why is 1000Base-T RJ-45 pinout scrambled instead of having each diff. pair in sequence ?
I need to make an ethernet connection using a cable about 6 feet long to a small and low power gigE camera. Other signals are required (power to camera and hard trigger) and one cable is better than ...
5
votes
2answers
226 views
How to explain this difference in pinout?
Seemingly illogical pinout has been discussed before, but my question is different.
Have a look at the pinouts for the Si8540:
One would think that the pin order would be the same for both ...
6
votes
0answers
274 views
Why are IC pinouts often so illogical? [duplicate]
Possible Duplicate:
Why are the pinouts of lpc21xx all over the place?
I have often noticed, and found it quite annoying from a PCB layout point of view, just how illogical many IC's ...
4
votes
7answers
355 views
Why are the pinouts of lpc21xx all over the place?
I am working as a winter intern at a robotics company. My job is to assist the lead embedded developer in...whatever he wants my assistance in. About a week back, I was handed a NXP blueboard with ...
