The arrangement of pins and their functions on a device

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3answers
58 views

Can this circuit board be repaired?

This is a board out of a Super Nintendo game cartridge. It appears to have damage from a few of the leads, and this game definitely doesn't work when tested. The game is very rare and worth my time ...
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2answers
32 views

How do i hook up this 2-digit 7-segment display

I have a 2-digit 7-segment display. I'm not able to determine the common anode pins even after consulting the datasheet. Where are the anode pins? Thanks!
0
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1answer
25 views

old ibm trackpoint pin scheme

I have a trackpoint from a thinkpad keyboard with a trackpoint mounting a PTPM754DR microcontroller, what I'm trying to do is to find the usage of various pin on the trackpoint board and connect them ...
0
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1answer
22 views

hantronix HDM24216L-2-L3ES pinout

I am looking for the pinout on a hantronix HDM24216L-2-L3ES 24x1 LCD. I found the datasheet: http://www.hantronix.com/files/data/1278557021char-comm.pdf but I cant determine what the pinout is. Can ...
1
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2answers
92 views

Datasheet for a DU1PU relay?

I took apart an old microwave oven and found the relay the computer chip closes to activate the magnetron. The relay is a DEC DU1PU, made in China. Does anyone have a datasheet for it? I'm mostly ...
0
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2answers
41 views

How to I wire this particular variant of 2.5mm female jack?

The second image has the pins not the top one. Now the pinouts are a bit confusing here. Now, I've wired a jack before but none like this. Can someone please help me out?
0
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1answer
54 views

How do I wire my 4066N analogue switch

I plan to use one of these to throw two switches at the same time: http://www.digikey.ca/product-detail/en/74HCT4066N,112/568-7854-5-ND/1230913 The switches should be closed when the voltage from ...
2
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4answers
211 views

PCB Layout, Functional vs Actual Pin Order

I'd like to continue this conversation here: CAD Schematic pin arrangement approach Basically, there are 2 major ways to do schematic symbols, either with true pin order or by grouping pins by their ...
0
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1answer
64 views

What are these unpopulated holes on the Arduino Leonardo?

None of the pinouts online mention these holes next to the power barrel and LEDs. Are they connected to anything?
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5answers
251 views

LDO - SOT223 - What's the Fourth pin for?

What's the fourth pin in LD1117-33 for (the thick on the top)?
2
votes
1answer
234 views

DC Power supply Jack connector pinout

I'm trying to make a footprint for this connector: But I have a trouble about pinout. What is the SLEEVE TERMINAL, TIP TERMINAL, SHUNT TERMINAL? What is my power connection? V+ and GND?
0
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0answers
29 views

Pinout/bus arbitration signals of 80287 floating-point unit

I'm in the process of attempting to create a "homebrew" IBM PC/AT board from the original schematics to use for my OS development pursuits. What I noticed is that there is a discrepancy between the ...
0
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1answer
97 views

How to connect 5X7 LED dot matrix which has 7X7 pin both side.

I have 5X7 led dot matrix. But I am confused, how to connect it. Because it has 7 pin both the side. So, I am not going to differentiate that which is Row and column pin.
1
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3answers
123 views

Schematic & pin reduction

I am using arduino Uno for developing my project. There are totally 24 analog hall sensor out put,1 temprature ananlog output, 1 Rshunt voltgae measurement. There are totally 26 Analog sensor.I am ...
0
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0answers
83 views

Identifying unusual LCD pinout of salavaged HP printer

I salvaged the following lcd from a relatively new HP printer, but the pinout seems a bit odd, any ideas how could I set up the screen?
0
votes
1answer
58 views

CS4234 has two I2S data I/O lines?

I have an application where I'll be sending audio data to a codec. The CS4234 fits my needs very well, although with other I2S codecs, there have only been one data in line for the communication. The ...
0
votes
2answers
92 views

I am messing around with some power supplies. There are pinouts labelled “reserved” and “remote”- what are they?

I have worked out that that the Remote pin works like the Green "Power Supply On (active low)" wire on an ATX supply, and found a wiki on remote sensing about it being used to get diagnostics on the ...
2
votes
1answer
85 views

27512 pinout and PCB layout

I'm trying to design PCB traces for a 27512 EPROM chip. But its pinout for the higher half of the address bus seems completely illogical to me and I cannot imagine how should I lay out my traces for ...
1
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1answer
253 views

Specs of HK-TR6A remote controller receiver

I'm trying to use a 2.4 GHz digital 6 channel remote controller to send signals to an Arduino UNO R3 board. The receiver is the HK-TR6A-V2. I can't find any information on what each pin input/output ...
6
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2answers
496 views

Transistor pinout - how to read the datasheet

Is the capsule's straight face visible? Or the round one? Is that top view or bottom view? Do all datasheets use the same orientation? This is the datasheet. I'm not looking for an answer ...
7
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4answers
350 views

Which of these marks signifies Pin 1 on the STM32F (LQFP64)?

I'm using the STM32F105, in a LQFP64 package. It has two circular markings, on opposing corners of the IC. This picture is for a different ST ARM, but the markings and silkscreen are similar: The ...
-1
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1answer
29 views

Pinout for EA-X40027AR

Can anyone show me a pinout for the Character LCD EA-X40027AR from EPSON? I've already found a datasheet but it has no pinout...
1
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1answer
36 views

STK4192II pinout?

I have been blowing through bandwidth trying to find a pinout diagram of an old STK4192II stereo amp IC but all I can find are reference design schematics, while these will work I guess I want to use ...
1
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2answers
178 views

MSP430 Pin Variables

I am trying to program an MSP430FR5969 for the first time. I successfully executed and modified a program to blink one of the LEDs connected to P1.0. The relevant predefined variable is P1OUT. The ...
0
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2answers
61 views

Need help finding datasheet for Mitsubishi Electric AA11SB6C-ADFD TFT

Searching datasheet for Mitsubishi Electric AA11SB6C-ADFD LCD display. This LCD is discontinued product, no information on official site. Already tried sites like datasheetarchive, alldatasheet. Still ...
1
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3answers
267 views

Need help finding datasheet or pinout for Toshiba TCD2907DG

I really want to play with Toshiba TCD2907DG - this is color linear CCD sensor. I've found a number of datasheets for other TCD*, but not this one. I would really appreciate any reference to ...
1
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1answer
786 views

Meaning of control pins: CE, OE, WE

Just understanding some syntax. On my Ram (6116) and Rom (27C64) it has a asserted low CE and OE pins. These I believe are control pins. I'm assuming to use the RAM for example, chip enable (CE) has ...
3
votes
1answer
110 views

Standard nomenclature for 2-row connector numbering schemes

Two-row connector blocks are ubiquitous in small-run and hobbyist PCB designs. Pitches of 0.1" or 2mm are the most common, and there are all sorts of options for board-to-board or board-to-wire ...
1
vote
1answer
110 views

Purpose of the Latch Enable (\$\overline{LE}\$) and Ripple Blanking (\$\overline{BI}\$) pins on 74HC4511

I am looking at the datasheet for the 74HC4511 (available here), and I am confused by the usage of two of the pins: Firstly, the "Latch Enable" pin (\$\overline{LE}\$), and secondly the "Ripple ...
1
vote
1answer
164 views

Designing RJ45 connector to have 100Ω differential impedance

I'm designing two pairs of connectors that have same layout as RJ45 (just 2 inner pins) to have 100 ohm impedance deferentially. Are there tools that allow to calculate impedance or ...
1
vote
1answer
147 views

Help me understand the pinout of this 21" LED display driver

I am trying to connect a 21" LED Display driver's input pins to my power board. There is a datasheet also but it doesn't have the input pin diagram. Therefore, I have got the below attached input pin ...
2
votes
1answer
202 views

Utility of two pins requiring same voltage

I have a LED backlight driver, which has input pin assignment as: Pin Function 1,2 12V Input 3 Brightness control PWM : 100Hz~20KHz DC : 0.5V~2.5V 4,6 ...
1
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0answers
114 views

Help identifying pinout of LTM-0436M multi-segment LED

I've got following unique segmented LED display module from local store. It has 8-pin (physically similar to common 7-Segment display), the marking on body of the module is clearly printed as ...
3
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1answer
165 views

buck-boost, SEPIC IC out 3.3V and min 500mA 0.1" packaging

I am building some sort of navigation device for a logisitics project in my company. The whole thing is going to be battery (6V) powered, so I'm looking for every possible way to avoid losses to heat ...
2
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1answer
499 views

Do 9-pin LCD modules have a standard interface?

I bought some text LCD modules without spec sheets or obvious part numbers. They all have a series of connector pins, unlabelled other than a 1 to indicate pin 1. I was able to get the one with a ...
3
votes
1answer
220 views

How can I power a SCSI hard drive without a motherboard/scsi card?

While this is possibly more of a Super-User question, I chose to put it in EE because I'm looking for information about power assignments on SCSI cables, and understanding how to send power ONLY (not ...
1
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2answers
471 views

Connect a microSD reader to a LilyPad USB, where are the digital ports?

I am attempting to connect a microSD breakout board to a LilyPad Arduino USB. The microSD board has previously been connected to an Arduino Duemilanove. In the Duemilanove setup, the following ...
2
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4answers
435 views

Confused about IN/OUT architecture of z80 chip

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1
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1answer
1k views

Pinout of iPhone 4/4S rear camera connector?

Has anyone come across the pinout of an iPhone 4/4S rear camera module connector?
0
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1answer
1k views

Pinout of Audi 2008 A4 Quattro 3.2L MMI to iPod?

I have came across an Audi A4 2008 Quattro 3.2L, and in the glove compartment it an iPod dock. I took it apart and behind the iPod dock there is a PCB which connects to the ipod connector (which ...
0
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1answer
628 views

Interface/pinout of a smartphone camera module?

I am wondering where, if any, I can get information regarding interfacing/connecting with a smartphone camera module. For example, this camera module is a replacement for SGS4 and I can clearly see ...
6
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2answers
667 views

Program to draw pinouts (and easily visualize pin's multiplexed functions)

Documenting an electronics project is also an important task if it will be used by someone else other than the hardware designer(s). Right now I need to draw a diagram for a breakout board in order to ...
14
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2answers
466 views

Why would the VCC/GND pins of an ATtiny26 not be aligned?

In the following pinout diagram for an ATtiny26 microcontroller, a 20-pin IC: The VCC/AVCC and GND pins aren't aligned. Surely it would be easier for PCB design to connect these by going straight ...
3
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1answer
68 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
10
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2answers
2k 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 ...
2
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0answers
683 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
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1answer
252 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
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2answers
732 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 ...
6
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6answers
882 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
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2answers
160 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 ...