I/O Expanders

(1553 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
PCA9538PWR I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 16-TSSOP -40 to 85	4719	10+: $1.23428 30+: $1.09885 100+: $0.94457 Show More
PCA9539DB 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	30	1+: $3.03772 10+: $2.57828 30+: $2.29028
PCA9539PWRE4 I/O Expanders	Texas Instruments	Remote 16-Bit I²C And SMBus, Low-Power I/O Expander With Interrupt Output, Reset & Config. Registers 24-TSSOP -40 to 85	In Stock	2000+: $1.62195 4000+: $1.58910
PCA9554APWRG4 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	2000+: $0.72028 4000+: $0.70338 6000+: $0.69491 Show More
PCA9554DBR I/O Expanders	Texas Instruments	I2C/SMBus Interface 400kHz 5.5V 16-Pin SSOP T/R	532	1+: $1.95360 10+: $1.44936 25+: $1.32211 Show More
PCA9554DGVR I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TVSOP -40 to 85	In Stock	161+: $1.63680 2000+: $1.37167 4000+: $1.34303 Show More
PCA9554PWR 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	577	1+: $1.70743 10+: $1.44857 30+: $1.28743 Show More
PCA9554PWRG4 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	2000+: $1.05841 4000+: $1.03525 6000+: $1.02364
PCA9555DW I/O Expanders	Texas Instruments	Remote 16-Bit I²C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-SOIC -40 to 85	954	1+: $2.66640 10+: $1.99496 25+: $1.82723 Show More
PCA9557DB I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SSOP -40 to 85	In Stock	161+: $1.63680 1040+: $1.09945
PCA9557DT 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	357	1+: $1.64560 10+: $1.21352 25+: $1.10493 Show More
PCA9557PWT 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	304	1+: $1.64560 10+: $1.21352 25+: $1.10493 Show More
PCF8574ADWRE4 I/O Expanders	Texas Instruments	Remote 8-Bit I/O Expander for I2C-Bus 16-SOIC -40 to 85	In Stock	2000+: $0.74195 4000+: $0.72464 6000+: $0.71596 Show More
PCF8574ANG4 I/O Expanders	Texas Instruments	IC XPNDR 100KHZ I2C 16DIP	In Stock	600+: $0.55664
PCF8574APW I/O Expanders	Texas Instruments	8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-TSSOP -40 to 85	In Stock	350+: $1.21181
PCF8574APWG4 I/O Expanders	Texas Instruments	8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-TSSOP -40 to 85	In Stock	350+: $1.49673
PCF8574APWRG4 I/O Expanders	Texas Instruments	8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-TSSOP -40 to 85	In Stock	2000+: $0.77083 4000+: $0.75295 6000+: $0.74400 Show More
PCF8574ARGYRG4 I/O Expanders	Texas Instruments	8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-VQFN -40 to 85	In Stock	3000+: $0.75995 6000+: $0.74400 9000+: $0.73602
PCF8574DW I/O Expanders	Texas Instruments	I2C Interface 100kHz 6V 16-Pin SOIC Tube	115	1+: $1.99543 10+: $1.69372 30+: $1.50515
PCF8574NG4 I/O Expanders	Texas Instruments	IC XPNDR 100KHZ I2C 16DIP	In Stock	475+: $0.71188
PCF8574PW I/O Expanders	Texas Instruments	8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-TSSOP -40 to 85	In Stock	50+: $3.08442 200+: $2.58817 500+: $2.14950 Show More
PCF8575CDW 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	350+: $2.66490
PCF8575CPW 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	122+: $2.16480 360+: $2.66149
PCF8575DBQRG4 I/O Expanders	Texas Instruments	Remote 16-Bit I²C and SMBus I/O Expander with Interrupt Output 24-SSOP -40 to 85	In Stock	2500+: $1.23652 5000+: $1.21166
PCF8575PWRE4 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+: $1.00583 4000+: $0.98361 6000+: $0.97248