Pinouts & Pin References
for ICs & Semiconductors.

Pinout diagrams for timers, op-amps, logic gates, voltage regulators, and driver ICs.

276+ components available

All Boards, Chips & Connectors

Development platforms, microcontrollers, ICs and standard interfaces

Chip
Texas Instruments / RCA

CD4017B Decade Counter with 10 Decoded Outputs

5-stage Johnson counter with 10 decoded outputs. Advances on rising clock edge. 3–18V supply. Used in LED chasers, sequencers, and frequency dividers.

Chip
Texas Instruments / RCA

CD4066B Quad Bilateral Analog Switch

Four independent bidirectional analog switches. Each switch passes analog or digital signals in both directions when the control input is HIGH. 3–18V supply, Ron typically 80Ω.

Chip
WCH (Jiangsu Qinheng)

CH340G USB to Serial UART Bridge Controller

USB serial converter, UART, SOIC-16

Chip
Aosong Electronics

DHT11 Humidity and Temperature Sensor Module

3.3V to 5.5V, temperature and humidity module, DHT11

Chip
Aosong Electronics

DHT22 / AM2302 Digital Humidity and Temperature Sensor

Capacitive humidity and temperature sensor with a single-wire proprietary digital interface (NOT I2C). 3.3–5.5V supply. Accuracy: ±2% RH, ±0.5°C. Requires a 10kΩ pull-up on the DATA line.

Chip
Maxim Integrated / Analog Devices

DS1307 64 x 8 Serial Real-Time Clock (I2C)

64 x 8, Serial, I2C Real-time clock, 4.5V to 5.5V VCC, 0°C to +70°C, DIP-8

Chip
Maxim Integrated / Analog Devices

DS3231 Extremely Accurate I2C Integrated RTC/TCXO/Crystal

Extremely Accurate I2C-Integrated RTC/TCXO/Crystal SOIC-16

Chip
FTDI Chip

FT232RL USB to Serial UART Interface IC

USB to Serial Interface, SSOP-28

Chip
Infineon / International Rectifier

IRF540N 100V Single N-Channel HEXFET Power MOSFET

Advanced HEXFET Power MOSFET utilizing advanced processing techniques to achieve extremely low on-resistance (44 mOhm) and fast switching speeds up to 100V and 33A continuous drain current.

Chip
Infineon / International Rectifier

IRLZ44N 55V Logic-Level N-Channel HEXFET Power MOSFET

5th Generation HEXFET logic-level gate drive power MOSFET fully specified at 4V and 5V gate drive for direct microcontroller driving (Arduino, ESP32, Raspberry Pi) with 47A rating.

Chip
STMicroelectronics / TI

L293 Quadruple Half-H Drivers

Quadruple Half-H motor driver IC providing four independently controlled half-bridge outputs rated 600mA each; no internal flyback diodes (add external diodes for inductive loads).

Chip
STMicroelectronics

L298N Dual Full-Bridge Driver

Dual full-bridge motor driver in Multiwatt-15 package, rated for up to 46V and 2A continuous per bridge (4A peak). No internal flyback diodes, add external diodes for inductive loads.

Chip
Texas Instruments

LM311 Voltage Comparator with Strobe

Voltage Comparator, DIP-8/SOIC-8

Chip
Texas Instruments

LM317 Adjustable Positive Voltage Regulator

1.5A 35V Adjustable Linear Regulator, TO-220

Chip
Texas Instruments

LM324 Low-Power Quad Operational Amplifier

Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14

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