I/O Expanders

Devices in this family are used in conjunction with microcontrollers, microprocessors, or similar devices for the purpose of increasing the number of signal connections available for connecting peripheral devices. The typical concept of operation involves the use of serial communications requiring only a few I/O lines on the host device to read/write the status of many input/output pins on the expander device. The technique exchanges speed of communication for increased connectivity, and is best suited for applications where fast response is not critical, such as in many human interface applications.

---

Renesas Electronics America Inc. CMQ82C55AZ96

IC I/O EXPANDER 24B 44MQFP

5.06

Cypress Semiconductor Corp CY8C9560A-24AXIT

IC I/O EXPANDER I2C 60B 100LQFP

4.66

Renesas Electronics America Inc. CS82C55A-5Z

IC I/O EXPANDER 24B 44PLCC

4.63

Renesas Electronics America Inc. CS82C55A-5Z96

IC I/O EXPANDER 24B 44PLCC

4.63

Renesas Electronics America Inc. CMS82C55AZ96

IC I/O EXPANDER 24B 44PLCC

4.63

Renesas Electronics America Inc. CMS82C55AZ

IC I/O EXPANDER 24B 44PLCC

4.63

Cypress Semiconductor Corp CY8C9540A-24PVXIT

IC I/O EXPANDER I2C 40B 48SSOP

4.58

Maxim Integrated MAX7300AAI+T

IC I/O EXPANDER I2C 28B 28SSOP

3.46