JAK Electronics

Interface - I/O Expanders

Integrated Circuits (ICs) - Interface - I/O Expanders are electronic devices that provide additional input/output (I/O) ports to a microcontroller or microprocessor. These expanders are designed to increase the number of available I/O pins, allowing for the connection of more peripheral devices or sensors. I/O expanders are commonly used in applications where the number of I/O pins on the main microcontroller is limited, or when there is a need for additional I/O ports. They are particularly useful in embedded systems, robotics, automation, and other electronic projects that require multiple I/O connections. These ICs typically come in a small package, making them easy to integrate into circuit boards or systems. They can be connected to the microcontroller through various communication interfaces such as I2C, SPI, or parallel bus. The communication protocol used depends on the specific IC model and the requirements of the application. I/O expanders offer a range of features and capabilities, including bidirectional I/O ports, interrupt capabilities, and programmable input/output configurations. Some models also provide additional features like PWM (Pulse Width Modulation) outputs, analog-to-digital converters (ADCs), or voltage level translation. The main advantage of using I/O expanders is their ability to save space and reduce the complexity of the overall system design. By using these devices, designers can avoid the need for complex wiring or the use of multiple microcontrollers to handle the required number of I/O connections. In summary, Integrated Circuits (ICs) - Interface - I/O Expanders are versatile devices that provide additional I/O ports to microcontrollers or microprocessors. They are commonly used in applications where the number of available I/O pins is limited, allowing for the connection of more peripheral devices or sensors. These expanders offer various features and can be easily integrated into circuit boards or systems, making them a valuable tool for electronic projects.
1,446 Products Found
PCA9534DGVR

Texas Instruments

$5 . 13672 (for 1K)
In Stock: 500
PCF8575CDW

Texas Instruments

$9 . 778335 (for 1K)
In Stock: 1
PCA9557DB

Texas Instruments

$4 . 9464 (for 1K)
In Stock: 25
PCA9554DW

Texas Instruments

$1 . 140855 (for 1K)
In Stock: 2
PCA9534ADBR

Texas Instruments

$5 . 644305 (for 1K)
In Stock: 1500
MCP23016T-I/SO

Microchip Technology

$5 . 82057 (for 1K)
In Stock: 880
PCA9534APW

Texas Instruments

-
In Stock: 485
TCA9535MRGER

Texas Instruments

$4 . 563165 (for 1K)
In Stock: 164
STMPE1801BJR

STMicroelectronics

-
In Stock: 61300
PCA9539DBQR

Texas Instruments

$11 . 090055 (for 1K)
In Stock: 285
PCA9555BS,118

NXP USA Inc.

$3 . 618285 (for 1K)
In Stock: 6000
PCA9554ADWR

Texas Instruments

$2 . 78304 (for 1K)
In Stock: 3090
PCA9554PW,118

NXP USA Inc.

$2 . 866035 (for 1K)
In Stock: 18800
PCA6107DWR

Texas Instruments

$2 . 76219 (for 1K)
In Stock: 1972
PCA9554DWR

Texas Instruments

$3 . 977145 (for 1K)
In Stock: 4
PCA9535PW

Texas Instruments

$2 . 89263 (for 1K)
In Stock: 5000
MCP25050-E/P

Microchip Technology

$7 . 181055 (for 1K)
In Stock: 2
MCP23009-E/MG

Microchip Technology

$4 . 424895 (for 1K)
In Stock: 999
PCA9539BS,118

NXP USA Inc.

$3 . 58239 (for 1K)
In Stock: 12000
TCA1116PWR

Texas Instruments

$2 . 681295 (for 1K)
In Stock: 370
... 8910 ... 50

Popular Suppliers

© 2026 JAK ELECTRONICS LIMITED All Rights Reserved