I/O Expanders

(365 results)

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.

Part #	Manufacturer	Description	Availability	Pricing
PCF8574DGVR I/O Expanders	Texas Instruments	8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-TVSOP -40 to 85	182	1+: $2.17200 10+: $1.84115 30+: $1.63372
PCF8574ADGVR I/O Expanders	Texas Instruments	8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-TVSOP -40 to 85	129	1+: $2.16480 10+: $1.61128 25+: $1.47242 Show More
PCF8575DGVR I/O Expanders	Texas Instruments	16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-TVSOP -40 to 85	In Stock	2000+: $1.91162 4000+: $1.87405
PCF8575DBQR I/O Expanders	Texas Instruments	16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-SSOP -40 to 85	In Stock	2500+: $1.89871
PCF8575PWR I/O Expanders	Texas Instruments	16-Bit I2C I/O Expander, 400kHz, 5.5V, TSSOP	3844	10+: $1.75715 30+: $1.58915 100+: $1.43485 Show More
PCF8575DBR I/O Expanders	Texas Instruments	16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-SSOP -40 to 85	4983	10+: $1.34743 30+: $1.18800 100+: $1.00800 Show More
PCF8575CDBQR I/O Expanders	Texas Instruments	16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-SSOP -40 to 85	In Stock	130+: $2.02400
PCF8575CDGVR I/O Expanders	Texas Instruments	16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-TVSOP -40 to 85	In Stock	164+: $1.61040
PCF8575CDWR I/O Expanders	Texas Instruments	16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-SOIC -40 to 85	In Stock	11+: $2.02400 2000+: $2.22636 4000+: $2.18382
PCF8575CPWR I/O Expanders	Texas Instruments	16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-TSSOP -40 to 85	In Stock	2000+: $2.22636 4000+: $2.18382
PCA9539DBQR I/O Expanders	Texas Instruments	Remote 16-Bit I²C And SMBus, Low-Power I/O Expander With Interrupt Output, Reset & Config. Registers 24-SSOP -40 to 85	In Stock	1000+: $2.44388
PCA9557RGYR I/O Expanders	Texas Instruments	8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers 16-VQFN -40 to 85	13	1+: $1.29600 10+: $1.06285 30+: $0.93600
PCA9535PW I/O Expanders	Texas Instruments	Remote 16-Bit I²C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-TSSOP -40 to 85	12257	1+: $2.34080 10+: $1.74768 60+: $1.48691 Show More
PCA9536D I/O Expanders	Texas Instruments	Remote 4-Bit I²C and SMBus I/O Expander With Configuration Registers 8-SOIC -40 to 85	In Stock	1+: $1.66320 10+: $1.18096 202+: $1.31120
PCA9554ADB I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85	In Stock	1040+: $0.88022
PCA9554APW I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85	In Stock	1080+: $0.88022
PCA9554DB I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85	In Stock	173+: $1.53120
PCA9554PW I/O Expanders	Texas Instruments	8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 16-TSSOP -40 to 85	In Stock	188+: $1.40800
PCA9555PW I/O Expanders	Texas Instruments	I2C/SMBus Interface 100kHz/400kHz 5.5V 24-Pin TSSOP Tube	In Stock	1+: $1.05257 10+: $1.02857 30+: $1.01143 Show More
PCA9557D I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SOIC -40 to 85	In Stock	190+: $1.39040
PCA9557PW I/O Expanders	Texas Instruments	8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers 16-TSSOP -40 to 85	319	1+: $1.64560 10+: $1.21352 90+: $0.99254 Show More
TCA9534DWR I/O Expanders	Texas Instruments	Remote 8-Bit I²C Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-SOIC -40 to 85	2648	1+: $1.19680 10+: $0.87120 25+: $0.78954 Show More
TCA9534DWT I/O Expanders	Texas Instruments	Remote 8-Bit I²C Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-SOIC -40 to 85	14	1+: $1.41943 10+: $1.16572 30+: $1.02515
TCA9554ADWR I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus I/O Expander 16-SOIC -40 to 85	11	1+: $1.62515 10+: $1.58400 30+: $1.55485
TCA9554DWR I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus I/O Expander 16-SOIC -40 to 85	29	1+: $0.83143 10+: $0.80915 30+: $0.79543