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 | Quantity |
|---|---|---|---|---|---|
PCA9534ADWRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-SOIC -40 to 85 | In Stock | 162+: $1.62800 2000+: $0.92151 6000+: $0.88737
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PCA9534DWRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-SOIC -40 to 85 | 160 | 1+: $2.23543 10+: $1.88400 30+: $1.66628 | |
PCA9538DWRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 16-SOIC -40 to 85 | In Stock | 155+: $1.70720 2000+: $1.11452 4000+: $1.09035
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PCA9554ADWRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SOIC -40 to 85 | 88 | 1+: $1.68515 10+: $1.41600 30+: $1.24800 | |
PCA9557RGVRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-VQFN -40 to 85 | 3742 | 1+: $1.32000 10+: $0.96272 25+: $0.87402
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CY8C9520A-24PVXII/O Expanders | Infineon Technologies | IC XPNDR 100KHZ I2C 28SSOP | 435 | 1+: $5.27120 10+: $4.03832 47+: $3.56081
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CY8C9540A-24PVXII/O Expanders | Infineon Technologies | IC XPNDR 100KHZ I2C 48SSOP | 126 | 1+: $10.02320 10+: $7.85312 30+: $7.21923
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CY8C9560A-24AXII/O Expanders | Infineon Technologies | IC XPNDR 100KHZ I2C 100TQFP | 17 | 1+: $14.09828 10+: $13.40228 30+: $12.19543 | |
CY8C9520A-24PVXITI/O Expanders | Infineon Technologies | IC XPNDR 100KHZ I2C 28SSOP | In Stock | 1+: $5.21485 10+: $5.09828 30+: $5.02115
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CY8C9540A-24PVXITI/O Expanders | Infineon Technologies | IC XPNDR 100KHZ I2C 48SSOP | 447 | 1+: $10.02320 10+: $7.85312 25+: $7.31139
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CY8C9560A-24AXITI/O Expanders | Infineon Technologies | IC XPNDR 100KHZ I2C 100TQFP | In Stock | 1500+: $6.15357 | |
STMPE2401TBRI/O Expanders | STMicroelectronics | 24 I/O, PIA-GENERAL PURPOSE, PBGA36, LEAD FREE, TFBGA-36 | 8867 | 3000+: $1.21000 | |
STMPE801MTRI/O Expanders | STMicroelectronics | IC I/O EXPANDER I2C 8B 16SOIC | In Stock | 2500+: $0.97205 5000+: $0.95162 7500+: $0.94140 | |
MAX7324AEG+I/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C 24QSOP | In Stock | 1+: $4.86640 10+: $3.72064 50+: $3.26198
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MAX7318AAG+I/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C SMBUS 24SSOP | 257 | 1+: $6.28320 10+: $4.84704 58+: $4.22976
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MAX7324AEG+TI/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C 24QSOP | In Stock | 2500+: $2.72600 | |
PCA9534ARGVRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-VQFN -40 to 85 | 13461 | 1+: $2.39360 10+: $1.78376 25+: $1.63187
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PCA9534RGVRI/O Expanders | Texas Instruments | 8-Bit I2C I/O Expander, 400kHz, 8 I/Os, VQFN | 57 | 1+: $2.24057 10+: $1.90285 30+: $1.69028 | |
PCA9554ARGVRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-VQFN -40 to 85 | 850 | 1+: $1.19143 10+: $0.98400 30+: $0.87085
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PCA9535RTWRI/O Expanders | Texas Instruments | Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-WQFN -40 to 85 | In Stock | 3000+: $1.41184 6000+: $1.38539 | |
DS4520E+I/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C 16TSSOP | 1380 | 1+: $4.76960 10+: $3.64496 96+: $3.06194
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MAX7324ATG+I/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C 24TQFN | 24 | 1+: $4.86640 10+: $3.72064 75+: $3.17539
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MAX7322AEE+I/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C 16QSOP | 289 | 1+: $5.45600 10+: $4.18880 25+: $3.87165
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MAX7322AEE+TI/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C 16QSOP | In Stock | 2500+: $3.08734 | |
MAX7322ATE+TI/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C 16TQFN | 7814 | 1+: $4.69040 10+: $3.58424 25+: $3.30739
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