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
PCA9535RGER I/O Expanders	Texas Instruments	I2C/SMBus Interface 400kHz 5.5V 24-Pin VQFN EP T/R	9	1+: $1.66628 10+: $1.40400 30+: $1.23943
PCA9539RGER I/O Expanders	Texas Instruments	I2C/SMBus Interface 400kHz 5.5V 24-Pin VQFN EP T/R	415	1+: $1.74000 10+: $1.47600 30+: $1.31143 Show More
PCA9555RGER I/O Expanders	Texas Instruments	Remote 16-Bit I²C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-VQFN -40 to 85	5498	10+: $1.66800 30+: $1.44172 100+: $1.13657 Show More
PCA9557DBR 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	1115	1+: $1.77760 10+: $1.31120 25+: $1.19504 Show More
PCA9557DGVR I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-TVSOP -40 to 85	In Stock	1+: $1.77760 10+: $1.31120 25+: $1.19504 Show More
PCA9557DR I/O Expanders	Texas Instruments	8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers 16-SOIC -40 to 85	1324	1+: $1.66285 10+: $1.39543 30+: $1.24972 Show More
PCA9557PWR I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-TSSOP -40 to 85	1356	1+: $0.86915 10+: $0.70285 30+: $0.61885 Show More
PCF8575CRGER I/O Expanders	Texas Instruments	16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-VQFN -40 to 85	3113	1+: $3.33520 10+: $2.51592 25+: $2.31088 Show More
PCF8575DWR I/O Expanders	Texas Instruments	16-Bit I2C I/O Expander, 400kHz, 5.5V, SOIC	3050	1+: $2.35840 10+: $1.76000 25+: $1.60970 Show More
PCF8575RGER I/O Expanders	Texas Instruments	16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-VQFN -40 to 85	222	1+: $3.47315 10+: $2.98457 30+: $2.58172 Show More
PCA9554ADW I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SOIC -40 to 85	In Stock	207+: $1.27600 840+: $1.06234
PCA9554DW I/O Expanders	Texas Instruments	Remote 8-Bit I²C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SOIC -40 to 85	In Stock	173+: $1.53120 600+: $1.51186
PCA9555DWRG4 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	In Stock	2000+: $0.98908 4000+: $0.96716 6000+: $0.95619
PCA9555RGERG4 I/O Expanders	Texas Instruments	Remote 16-Bit I²C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-VQFN -40 to 85	In Stock	3000+: $0.97575 6000+: $0.95619 9000+: $0.94640
PCF8574DGVRG4 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	In Stock	2000+: $0.77083 4000+: $0.75295 6000+: $0.74400 Show More
PCF8574PWG4 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
PCF8575CDWG4 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	200+: $1.80880
PCF8575DGVRG4 I/O Expanders	Texas Instruments	Remote 16-Bit I²C and SMBus I/O Expander with Interrupt Output 24-TVSOP -40 to 85	In Stock	2000+: $1.24562 4000+: $1.21914 6000+: $1.20589
TCA6416PW I/O Expanders	Texas Instruments	Low-voltage 16-bit I²C & SMBus I/O expander with interrupt output, reset & config registers 24-TSSOP -40 to 85	In Stock	132+: $2.00640 420+: $2.26418
TCA6416PWG4 I/O Expanders	Texas Instruments	IC I/O EXPANDER I2C 16B 24TSSOP	In Stock	240+: $1.59313
TCA6416PWT I/O Expanders	Texas Instruments	Low-voltage 16-bit I²C & SMBus I/O expander with interrupt output, reset & config registers 24-TSSOP -40 to 85	264	1+: $3.96000 10+: $3.00608 25+: $2.76778 Show More
TCA6408ARSVR I/O Expanders	Texas Instruments	I2C Interface 100kHz/400kHz 5.5V 16-Pin UQFN T/R	2658	10+: $0.74228 30+: $0.67885 100+: $0.61372 Show More
TCA6416APWR I/O Expanders	Texas Instruments	I2C/SMBus Interface 100kHz/400kHz 5.5V 24-Pin TSSOP T/R	4691	10+: $0.91028 30+: $0.80572 100+: $0.70115 Show More
TCA1116RTWR I/O Expanders	Texas Instruments	Low Voltage 16-Bit I²C and SMBus Low-Power I/O Expander 24-WQFN -40 to 85	In Stock	1+: $1.80400 3000+: $1.20358 6000+: $1.18038
TCA9554PWR I/O Expanders	Texas Instruments	8-Bit I2C I/O Expander, 400kHz, 8-IO, Push-Pull, 1.65-5.5V, TSSOP	5522	10+: $0.53657 30+: $0.47828 100+: $0.42172 Show More