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Questions tagged [pinout]

The arrangement of pins and their functions on a device

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Pinout for Onsemi AR1335 (63-ODCSP/63-WFBGA/CSPBGA)

I am currently working on a project utilizing the Onsemi AR1335 (AR1335CSSC11SMKA0-CP) CMOS Image Sensor, 13 MP, 1/3". I chose this sensor since my MPU/APU platform (NXP i.MX8M P) already offers ...
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Pinout and details for the ME4-H2 hydrogen sensor from Winsen

I have been trying to understand and use a hydrogen sensor from Winsen (ME4-H2). However, the datasheet is scarce in information about the pinouts and other details. The pins are called C, R, W and an ...
Akash Hegde's user avatar
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Convert RS232 signal to USB

I have an optical amplifier that uses RS232 and I want to convert to USB. I've purchased this chip, also here. There is little documentation on this chip and the supplier hasn't responded to questions....
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MEMS microphone pinout identification [closed]

I wanted to play with MEMS micrphones. I didn't wanted to wait for my order to arrive so I decided to take away some microphones in some computers in the dumpster. I removed it using hot air to find a ...
InfiniteLooper's user avatar
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1 answer
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Datasheet of camera autofocus driver IC

I have a camera lens with auto focus. I opened it and found a tiny (2x1 mm) IC. A search on Google for "auto focus IC" showed it has 6 pins (GND, Vcc, SDA, SCL, and 2 outputs for the voice ...
Thedark's user avatar
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109 views

Ethernet with incorrect pinout still makes link?

I designed a board recently that accidentally had an incorrect pinout on the RJ45 jack for Ethernet. Instead of following TIA568, I instead routed it straight-through: Oh well, simple mistake, ...
Reid's user avatar
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1 answer
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Flyback transformer (BSC25 T1010A) pinout [closed]

I have a flyback transformer (BSC25 T1010A) with a pinout I attached below, but I don't know what the names of the pins represent (TP1, TP2, B+115, H.out, HT). I need to find the primary and flyback ...
Ria sri M's user avatar
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2 answers
219 views

Contact face vs. mating face

I'm a bit unsure which side is the contact face and which is the mating face. In my opinion, the red side is the mating face and the blue side is the contact face. Could you confirm or refute this for ...
kvantum.nuly's user avatar
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How to determine pinout on proprietary 3-pin charging port?

I picked up a dog collar at a yard sale that didn't come with a charger. Looks to use a 3pin charge port which takes 12v. Don't really want to buy a special charger for just 12v so was wondering how ...
dylwing23's user avatar
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HDMI cable CEC not present

I have a question regarding HDMI cables. I recently purchased a cable that does not have the CEC pins connected with each other. However there are certain devices that use that pin and other cables ...
VicTic's user avatar
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433 MHz crystal 3 feet pinout?

What are the pins A, B, C of this 433 MHz crystal oscillator? https://nexelectronics.in/wp-content/uploads/2023/01/433-MHZ-CRYSTAL-OSCILLATOR-1.jpg I suppose these are input, output, ground. Could ...
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What is the reasoning behind parallel memory pinouts?

Many of the parallel memory chips I’ve come across have counterintuitive address line pinouts. Take the AT28C256 32KB EEPROM, for example: The data pins are in near-ascending order (only interrupted ...
David D.'s user avatar
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Electrical automotive pin

This pin came out of a 08 Honda Accord. I have been doing as much research as i can but to no avail haven’t been able to locate this type. The only markings on it are “B1”.Any info on to what type ...
Wes's user avatar
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Is IC power pin position (V+ / V-) for a package mostly standardized for opamps, comparators, INAs etc.?

Is the power pin position for certain types of ICs standardized or practically, mostly standard? I assume there are rare exceptions and manufacturers could do what they want, but the general answer to ...
try-catch-finally's user avatar
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Where do I see the pin functions?

I got this usb² to i²C board: https://www.adafruit.com/product/2264 and I wonder where I can see any information about what the pins D0-D7 or C0-C9 mean, actually also even the same about GND and 3V, ...
Ben's user avatar
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VGA cable wire pinout

I stripped this VGA cable. It only has 5 wires. One is just single copper strand. Is this normal? If so what would be the pinout?
Kalash Changal's user avatar
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What's the Purpose of pin 44 on IDE cables

So I was looking at the pinout for 44 pin, notebook type IDE cables, and the 44th pin is listed as /TYPE : Type (0=ATA), what use does it have?
AussieHobbyist's user avatar
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Read transformer value and safety tips [closed]

I was trying to power up an old c64 without its original power supply, so i recovered a transformer from an old PC PSU. Here's a top and a bottom view: Up view Bottom view So I have a few Questions: ...
jack07Code's user avatar
3 votes
1 answer
1k views

Why does this USB-C connection only work in one connector orientation?

I have a setup of devices connected as follows: A B C [laptop]<---<<--->[keyboard] Where <- is a ...
alx9r's user avatar
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1 answer
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-VOUT, and COM pins for DC-DC Converter

For this DC-DC converter it shows PINs labelled as (see image): 1.) This is from the datasheet, https://www.murata.com/-/media/webrenewal/products/power/datasheet/ust-3w.pdf one of the few that ...
Old o's user avatar
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3 votes
1 answer
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LM4040 pinout not matching reality vs datasheet

I bought some voltage references from the LM4040 family, NFC41I and NFC20I i.e. ...
herhor67's user avatar
1 vote
0 answers
125 views

LTSpice Error from Unedited VOH1016 PSpice Model

I downloaded a PSpice model from Vishay for the VOH1016 optocoupler, and without modifying anything, I am getting a pin mismatch error. I opened the .lib file in LTSpice and automatically created the ...
Levi Applebaum's user avatar
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Dali thermal DLC384 datasheet

I have ordered this chip DLC384 from Dali-thermal some time ago but unfortunately never received the electric pin-outs and usage description/interface description. I mailed them multiple times over ...
Slupry's user avatar
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1 vote
1 answer
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How to connect LIS3DHTR accelerometer pins?

I want use LIS3DHTR in one of my projects. I have problem with some pins of this sensor. ADC pins: I want to connect some sensors with wire to jumper, is it OK? Datasheet said we can connect ADC pins ...
Moka's user avatar
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Is there a standard for FPC pin numbering direction?

Is there a standard for FPC connector pin numbers? (ie: which end is pin 1) I'm trying to design a PCB that uses an LCD display module with pin numbering such that when the cable is contact down and ...
Brad Robinson's user avatar
1 vote
2 answers
551 views

STM32 - While using SPI in write-only mode (MOSI), assign MISO pin to GPIO

While using HW SPI only for write purpose (only STM32 chip as master sends data through MOSI pin), is it possible to assign the MISO pin to general GPIO? I need it because the trace on PCB is already ...
brigadir's user avatar
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3 answers
238 views

PIC16F54 I/P PDIP-18 8-Bit microcontroller: self-made PIC programmer with USB serial communication

The PIC programmer circuit below is from the PIC16F54 datasheet. The programming stage can be reached when the pins RB6 and RB7 are set low and the VPP pin gets more voltage than the power supply in ...
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3 answers
2k views

How to power multiple servo motors?

I'm doing a robot arm for a project, but programming has become the least of my problems. I don't know how to connect the servo motors. I have a power module that apparently has around 5 V of output (...
Akko's user avatar
  • 3
-1 votes
1 answer
419 views

How to connect female audio jack with breadboard

I need to connect this female audio jack to a breadboard, and then to an amplifier and converter. I don't know the pinout of this component and the GND, can anyone help me?
Marrakchi Houssem's user avatar
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Seven-segment display pinout

Im working on a project with a 4-digit 7-segment display. The display is a FQY3042BUR-21 0916. I designed the circuit in Proteus and there were 8 data pins (a,b,c,d,e,f,g,dp) and 4 digit select pins(1,...
Line Follower's user avatar
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74hc595 with not connected pin

I've bought some 74HC595 in SOP-16 without directly looking at their datasheet and now that I have looked at it for my project I saw that it is marked that the OE and MR pin are not connected. I ...
rappepi's user avatar
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1 answer
80 views

Standard pin-out for simple 2-segment LED display? (4 pins)

My PC motherboard has a built-in 2-segment LED display that displays diagnostic codes such as "00" or "AF". I'd like to connect a microcontroller to read these codes for ...
SofaKng's user avatar
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How can I get these pins description?

How can I get these pins' descriptions? I researched on the internet a lot but I couldn't find anything. Here is the datasheet PDF download link and website. I specially need camera control pins. I ...
Aiakun's user avatar
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6 votes
3 answers
2k views

Does VGA DB15 have the same pinout as VGA DE15?

I am building a small device with VGA for the display. Sadly the diagrams I am using are for a 15 pin, 2 row connector, and I would like to use a 15 pin, 3 row connector for compatibility. Do they ...
R Baker's user avatar
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7 votes
1 answer
744 views

How to check the polarity of a common-mode choke?

I purchased some common-mode chokes and the documentation provided states: As this pinout does not correspond to other chokes of the same format, I have doubts about the position of the dots (pins 1 ...
Nikita's user avatar
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2 votes
3 answers
1k views

Confirm FFC pinout for forward and reverse direction

The first timer is using FFC so I would like to know about the pinout of the FFC forward and reverse cable. Below is an image from eBay showing both types; I have annotated pin1. Is my understanding ...
JR128's user avatar
  • 21
4 votes
1 answer
945 views

Finding the pinout of a bare LCD display

My kids have night lights that died. Of course I gutted them and found nice little displays. They show a 4-level battery control and a 2-level light control. I think they are pretty neat and I would ...
old_fool's user avatar
1 vote
2 answers
350 views

ESP32 Dev Board SPI connection

Recently, I have been given a task at the place where I am serving my internship. I have been given a pair of TTGO LoRa32 T3 V1.6.1 boards which house ESP32 microcontrollers and my task is to connect ...
Berk's user avatar
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1 vote
1 answer
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Clock issue or set-reset issue: I am unsure how to debug and assess the situation

I currently have two issues I'm not sure how to deal with, and I am unsure of which is preventing implementation. I am trying to debug a memory interface and I am unsure of what to do. My first ...
Lyndon Alcock's user avatar
2 votes
1 answer
6k views

Why do some USB Type B cables have an ID pinout but others have a DGND pinout, how do I tell the difference between them without ripping it apart?

On this page, it is clear that the pinout for a Micro USB type B is: VDD (+5V) D- (Data-) D+ (Data+) ID (ID) GND (Ground) However, when I opened and stripped apart my Micro USB type B, it looks like ...
Annon's user avatar
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2 answers
255 views

Texas Instruments LMR14050SDDA device markings

I can't wait until 2024 for my order of LMR14050SDDA buck converter IC's to be fulfilled, so I bought a few demo boards from Mouser and Digikey to salvage the ICs from these. Recently, the board house ...
mike's user avatar
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1 answer
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How to read MCU schematic and map each pin correctly

I relatively new to working with MCU's and have been having some trouble figuring out what "mode" to set a pin to when trying to map it to the correct function. For this project, I am using ...
jabroni's user avatar
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2 answers
164 views

What do these different types of pin shapes mean?

Do these pins with different shapes have special meaning. Is there an industry standard for pin shapes and sizes? I have also noticed that some solder pads on boards are of Square shape and most of ...
Rohit's user avatar
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2 answers
146 views

CPU test pins (test as a noun)

Looking at the FM2 socket for AMD processors I've noticed that there are some "test pins", i.e V22. What are they for? Is it possible to manage them, i.e for some led signaling?
perencia's user avatar
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2 answers
518 views

Is the dot on an eight pin MOSFET the source or gate?

I watched a youtube video explaining that the dot indicates the start of the source pin segment, and the 4th pin on the same side, is the gate. With a DMM, I get continuity between the dot pin and ...
slackexchange's user avatar
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1 answer
457 views

Variable inductor pinout

I do not understand the pinout of the variable inductors from Murata. Here is an example: I can see that the coil is on pins four and six, but what are the other pins for? The full datasheet is here.
andya's user avatar
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33 votes
4 answers
3k views

Why do some microcontrollers have a single port's pins distributed widely around the package?

I was trying to use a microcontroller's 16-bit IO port to interface with a parallel display. I found that the IOs of a single port (let's say PORTB) are highly fragmented around the microcontroller: ...
Tirdad Sadri Nejad's user avatar
2 votes
2 answers
964 views

STM32 20 pin cable pinout

I have an STM32 20 pin cable used by the ST-Link to programme the microcontrollers like the one in the image I know the pinout of the connector is the one below unfortunately I can't find the ...
NicoCaldo's user avatar
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2 votes
1 answer
157 views

DE-9 Connector for 100BaseTX Ethernet - How to assign pinout?

I need to use a DE-9 connector for my Ethernet Interface (RGMII 100Base-TX) which has two pairs of differential signals TX and RX. I have attached the pinout for the DE-9 connector below. I have the ...
Matty's user avatar
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1 answer
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Is anyone familiar with this 29 pin connection?

It is the output port of a power supply. Anyone knows what this connection is called and where to buy the right cables? If you've come across this, please offer some details. Thanks.
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