The Interactive Database for
Pinouts & Hardware Diagrams.
Interactive diagrams, pin functions and links to technical datasheets for microcontrollers, dev boards, and ICs at a glance.
All Boards, Chips & Connectors
Development platforms, microcontrollers, ICs and standard interfaces
ATX12V 4-Pin CPU Power Connector (P4)
4-pin auxiliary +12V connector defined by the ATX12V specification, supplying dedicated power to the CPU voltage regulator on motherboards, the predecessor to the 8-pin EPS12V connector.
BC547 NPN General Purpose Transistor
General purpose NPN silicon transistor for switching and amplifier applications. Max 45V VCE, 100mA IC, 500mW. European standard equivalent to 2N3904.
BMP280 Digital Barometric Pressure Sensor
High-precision, low-power digital barometric pressure and temperature sensor with I2C/SPI interface, commonly used for altitude estimation and weather stations.
BNC Coaxial Connector
Bayonet-locking RF coaxial connector with 50 Ohm or 75 Ohm impedance. Used for oscilloscope probes, test equipment, composite video, CCTV, 10BASE2 Ethernet, and RF applications up to 4 GHz.
BQ24074 LiPo Charger with Power Path Management
Single-cell Li-Ion/LiPo linear charger with autonomous power-path management, allowing the system to run directly from USB/DC input while simultaneously charging the battery.
CD74HC4067 16-Channel Analog Multiplexer/Demultiplexer
High-speed CMOS 16-channel analog multiplexer/demultiplexer with low on-resistance (typ. 70 Ohm) and wide analog voltage range. Ideal for data acquisition and signal routing.
DC Barrel Power Jack (5.5x2.1mm)
Standard coaxial DC power jack (5.5mm outer / 2.1mm inner diameter, center-positive) used to supply external power to boards and adapters. Common breadboard-mount versions add a third normally-closed switch contact for power-source detection.
DIN-5 (180) MIDI Connector
5-pin 180-degree DIN connector used for MIDI (Musical Instrument Digital Interface) communication at 31.25 kBaud. Only pins 2, 4, 5 are used for MIDI; pins 1, 3 reserved.
DVI-D Dual Link Digital Video Connector
Dual-link DVI-D connector with all 24 digital signal pins populated for two TMDS links. Supports resolutions up to 2560x1600 at 60Hz by doubling the available bandwidth.
DVI-D Single Link Digital Video Connector
Digital-only DVI connector with 24 signal pins plus 1 ground blade for single-link TMDS signaling. Supports resolutions up to 1920x1200 at 60Hz (single link) or 2560x1600 (dual link).
DVI-I Dual Link Integrated (Digital + Analog) Video Connector
Full-featured 29-pin DVI connector with dual TMDS links and analog VGA signals. Supports digital resolutions up to 2560x1600 at 60Hz and analog VGA via passive adapter.
DVI-I Single Link Integrated (Digital + Analog) Video Connector
Integrated DVI connector carrying both digital TMDS and analog VGA signals. 24 digital pins plus 5 analog pins (4 analog contacts + 1 ground blade). Supports single-link resolutions up to 1920x1200 at 60Hz.
IDC 40-Pin ATA/IDE Ribbon Header
40-pin insulation-displacement (IDC) header for Parallel ATA (PATA/IDE) ribbon cables, carrying a 16-bit data bus and control signals between the host controller and hard disk / optical drives.
INA226 Precision Current/Power Monitor
Bidirectional current, voltage, and power monitor with I2C/SMBus interface and a programmable alert pin, offering higher resolution and accuracy than the popular INA219.
IRF3205 55V Single N-Channel HEXFET Power MOSFET
High-current N-channel HEXFET Power MOSFET with extremely low on-resistance (8 mOhm typ.) for high-efficiency switching. 55V VDSS, 110A continuous drain current.
Frequently Asked Questions & Transparency
Helpful information about data sources, usage, and privacy
Where does the pinout data and technical specification come from?
The pinout data and technical specifications are based on official manufacturer datasheets as well as publicly available documentation and community resources. As PinoutDatabase is an independent project maintained by me as an individual, I strive for high accuracy, though inadvertent mistakes can still happen.
Can I use the graphics and how are they created?
The SVG vector files and PNG graphics are free to download and use for private/personal purposes. Depending on the component, the diagrams are either crafted manually or generated automatically based on package footprint and pin definitions.
Found an error or missing a component? How can I give feedback?
Community feedback is always appreciated! If you spot an error or are missing a specific component, please use the 'Report Issue' button directly on that component's page or send me a message via the contact form.
Is the site free to use and how is privacy handled?
Currently, using PinoutDatabase is completely free and requires no registration. All interactive web tools run entirely client-side inside your browser. Detailed information regarding data processing can be found directly on our Privacy Policy page.