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
LM741 General Purpose Operational Amplifier
Operational Amplifier, DIP-8/TO-99-8
Micro-USB Type-B 5-Pin Interface
Compact 5-pin USB 2.0 connector with dedicated OTG ID pin for dynamic host/device mode negotiation.
NodeMCU V2 (ESP8266 / ESP-12E)
Popular Wi-Fi development board powered by the ESP8266 32-bit Tensilica L106 microcontroller running at 80/160 MHz, with integrated USB-UART, 4MB Flash, and 30 breadboard-friendly pins.
PCI Express 8-Pin Power Connector
Standard 8-pin PCIe power connector for high-performance graphics cards (GPUs). Delivers up to 150W of +12V power via 3 main +12V rails, 3 Ground rails, and 2 Sense detection pins.
Raspberry Pi 4 Model B
Popular single-board computer featuring a 1.5 GHz 64-bit quad-core ARM Cortex-A72 processor (Broadcom BCM2711), dual 4K micro-HDMI, Gigabit Ethernet, USB 3.0, and 40-pin GPIO header.
SD Card Interface
Standard 9-pin full-size Secure Digital (SD/SDHC/SDXC) memory card interface and host socket supporting SDIO 4-bit parallel bus mode and 1-bit SPI serial bus mode with physical write-protect lock switch.
Serial ATA (SATA) 15-Pin Power Connector
Standard 15-pin power interface for SATA drives delivering +3.3V, +5V, +12V DC power lines with staggered pre-charge contacts for hot-plugging.
BH1750FVI Digital Ambient Light Sensor (GY-302)
Digital 16-bit ambient light sensor IC with I2C bus interface for illuminance measurements from 1 to 65535 lx with human eye spectral response.
LM393 Dual Differential Comparator
Low-Power, Low-Offset Voltage, Dual Comparators, DIP-8/SOIC-8/TO-99-8
PIC16F886 28-Pin Flash Microcontroller with nanoWatt (DIP-28)
8K Flash, 256B SRAM, 256B EEPROM, XLP, DIP28
PJRC Teensy 4.0 (ARM Cortex-M7)
Ultra high-performance development board featuring an ARM Cortex-M7 processor at 600 MHz (NXP i.MX RT1062), 2048K Flash, 1024K RAM, 40 total I/O pins, and hardware floating-point support.
RC522 13.56 MHz RFID / NFC Reader Module (MFRC522)
Popular contactless 13.56 MHz RFID reader/writer module based on the MFRC522 IC, supporting ISO/IEC 14443 A / MIFARE cards via SPI interface.
STM32F103C8T6 'Blue Pill' Board
Popular low-cost 32-bit ARM Cortex-M3 development board featuring 72 MHz clock, 64KB Flash, 20KB SRAM, USB 2.0 Full Speed, and 40 breadboard-friendly pins.
TDA2030 14W Hi-Fi Audio Amplifier (Pentawatt V)
14W Hi-Fi Audio Amplifier, TO-220-5 (Pentawatt)
VGA (DE-15 / D-Sub 15-Pin Interface)
Standard 15-pin 3-row D-Sub connector for analog RGB component video signals, horizontal/vertical synchronization, and DDC2B (I2C) display communication.
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.
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