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
OBD-II (SAE J1962) 16-Pin Vehicle Diagnostic Port
Standardized 16-pin diagnostic link connector (DLC) mandatory on all passenger vehicles in the US and Europe. Provides access to automotive bus communication including ISO 11898 High-Speed CAN, ISO 9141 K-Line, SAE J1850 PWM/VPW, and permanent +12V battery power.
PT2399 CMOS Echo / Delay Audio Processor
Single-chip CMOS echo and audio delay processor utilizing internal 44Kbit digital RAM with integrated ADC, DAC, and operational amplifiers. Widely used in guitar pedals, synthesizers, and karaoke equipment.
Winbond W25Q128JWF (SOIC-16)
1.8V 128M-bit (16M-byte) Serial NOR Flash memory with Dual/Quad SPI in 16-pin SOIC 300-mil package. Standard IQ series with factory-fixed Quad Enable (QE=1), dedicated hardware /RESET pin on Pin 3, and JEDEC ID 6018h.
Winbond W25Q128JWS (SOIC-8 / WSON-8)
1.8V 128M-bit (16M-byte) Serial NOR Flash memory with Dual/Quad SPI in 8-pin SOIC 208-mil and 8-pad WSON packages. Standard IQ series with factory-fixed Quad Enable (QE=1) and JEDEC ID 6018h.
Winbond W25Q256JW (WSON-8)
1.8V 256M-bit (32M-byte) Serial NOR Flash memory with Dual/Quad SPI in 8-pad WSON package (6x5mm / 8x6mm). Standard IQ series with factory-fixed Quad Enable (QE=1) and JEDEC ID 6019h.
Winbond W25Q256JWF (SOIC-16)
1.8V 256M-bit (32M-byte) Serial NOR Flash memory with Dual/Quad SPI in 16-pin SOIC 300-mil package. Standard IQ series with factory-fixed Quad Enable (QE=1), dedicated hardware /RESET input (Pin 3), and JEDEC ID 6019h.
MAX3232 3.0V-5.5V Dual RS-232 Transceiver
Two-channel line driver and receiver with ±15-kV ESD protection and internal charge pump for 3.0V to 5.5V operation. Meets EIA/TIA-232-F standards while operating directly from 3.3V microcontroller logic without external high voltage supplies.
SN754410 Quadruple Half-H Motor Driver
Quadruple high-current half-H driver designed to provide bidirectional drive currents of up to 1A at voltages from 4.5V to 36V. Pin-compatible higher-current modern alternative to the popular L293D with internal output clamp diodes for inductive transient suppression.
74HC4052 Dual 4-Channel Analog Multiplexer / Demultiplexer
Dual 4-channel analog multiplexer/demultiplexer with common channel select logic and active-low enable. Supports bidirectional signal routing of digital and analog voltages up to 10V with low ON resistance and break-before-make switching.
74HC4053 Triple 2-Channel Analog Multiplexer / Demultiplexer
Triple 2-channel analog multiplexer/demultiplexer (three independent SPDT analog switches) with three separate digital select inputs and a common enable input. Designed for analog and digital signal switching up to 10V peak-to-peak.
74HC151 8-Input Data Selector / Multiplexer
High-speed silicon-gate CMOS 8-channel data selector/multiplexer. Decodes 3 binary address inputs (S0, S1, S2) to select one of eight data sources (D0 through D7) with complementary true (Y) and inverted (~W) outputs.
JST-XH 4-Pin 2.54mm Wire-to-Board Connector
Standard 4-pin 2.54mm (0.1 inch) pitch wire-to-board polarized disconnectable connector. Universally utilized for 3D printer stepper motor wiring, endstops, I2C/UART interconnect cables, and 3S LiPo battery balancing ports with a 3A current rating.
TL494 Pulse-Width-Modulation Control Circuit
Fixed-frequency pulse-width-modulation (PWM) control circuit designed primarily for power supply control. Incorporates two error amplifiers, an on-chip adjustable oscillator, dead-time control (DTC) comparator, pulse-steering flip-flop, 5.0V precision regulator, and output control circuits.
CD4026B Decade Counter with 7-Segment Output
5-stage Johnson decade counter and an output decoder that converts Johnson code to 7-segment decoded outputs (a through g) capable of driving common-cathode numeric LED displays directly without external decoders.
DS1302 Trickle-Charge Timekeeping RTC
Trickle-charge timekeeping chip containing a real-time clock/calendar and 31 bytes of static RAM. Communicates with microprocessors via a simple 3-wire SPI-like synchronous serial interface (CE, SCLK, I/O) and operates down to 2.0V.
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