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
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
MIC74BQS I/O Expanders	Microchip Technology	IC XPNDR 100KHZ I2C SMBUS 16QSOP	In Stock	490+: $1.48689
MIC74BQS-TR I/O Expanders	Microchip Technology	IC XPNDR 100KHZ I2C SMBUS 16QSOP	In Stock	2500+: $1.37500
MIC74YQS I/O Expanders	Microchip Technology	IC XPNDR 100KHZ I2C SMBUS 16QSOP	In Stock	1+: $2.32320
DS4520E+TRL I/O Expanders	Analog Devices Inc./Maxim Integrated	IC XPNDR 400KHZ I2C 16TSSOP	18641	1+: $4.46160 10+: $3.40208 25+: $3.13702 Show More
DS4550E+ I/O Expanders	Analog Devices Inc./Maxim Integrated	IC XPNDR 400KHZ I2C JTAG 20TSSOP	162	1+: $6.11600 10+: $4.71240 74+: $4.04788 Show More
PCA9539DBR 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	13	1+: $2.95200 10+: $2.88343 30+: $2.83715
PCA9539DGVR I/O Expanders	Texas Instruments	Remote 16-Bit I²C And SMBus, Low-Power I/O Expander With Interrupt Output, Reset & Config. Registers 24-TVSOP -40 to 85	6	1+: $2.58515 10+: $2.27657 30+: $2.05885
PCA9539PWR 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	3302	10+: $1.53085 30+: $1.36457 100+: $1.14685 Show More
PCA9555DBR I/O Expanders	Texas Instruments	Remote 16-Bit I²C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-SSOP -40 to 85	5652	10+: $1.44857 30+: $1.27885 100+: $1.10400 Show More
PCA9555DWR 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	129	1+: $3.27257 10+: $2.80285 30+: $2.52515
PCA9555PWR I/O Expanders	Texas Instruments	16-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 24-TSSOP -40 to 85	2044	1+: $1.02857 10+: $0.83485 30+: $0.73715 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
PCF8575CDBR 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	2000+: $2.22636 4000+: $2.18382
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
STMPE1601TBR I/O Expanders	STMicroelectronics	16-bit enhanced port expander with keypad and PWM controller Xpander Logic	In Stock	3500+: $0.72771 7000+: $0.71291 10500+: $0.70550
XRA1404IG16-F I/O Expanders	MaxLinear	IC XPNDR 26MHZ SPI 16TSSOP	In Stock	190+: $0.88667
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