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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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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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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MAX7323AEE+TI/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C 16QSOP | In Stock | 2500+: $2.52754 | |
MAX7324ATG+TI/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C 24TQFN | In Stock | 2500+: $2.72600 | |
PCA9534ARGTRG4I/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 | In Stock | 3000+: $0.81222 6000+: $0.79538 9000+: $0.78695 | |
PCA9534DWI/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 | 176+: $1.49600 640+: $1.40297 | |
PCA9534DWG4I/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 | 320+: $1.06739 | |
PCA9534RGVRG4I/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 | In Stock | 2500+: $0.81722 5000+: $0.79951 7500+: $0.79063 | |
PCA9535PWG4I/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 | In Stock | 240+: $1.45475 | |
PCA9535PWRG4I/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 | In Stock | 2000+: $1.14196 4000+: $1.11730 6000+: $1.10495 | |
PCA9538DWI/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 | 176+: $1.49600 640+: $1.32058 | |
PCA9539PWRG4I/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+: $1.09065 4000+: $1.06690 6000+: $1.05501 | |
PCA9555PWRG4I/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 | In Stock | 2000+: $1.18129 4000+: $1.15594 6000+: $1.14326 | |
PCF8574PWG4I/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 | |
PCF8575CDWG4I/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 | |
PCF8575DGVRG4I/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 | |
TCA6408ZXYRI/O Expanders | Texas Instruments | Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output, Reset, and Config Register 20-BGA MICROSTAR JUNIOR -40 to 85 | In Stock | 163+: $1.61920 | |
TCA6416PWI/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 | |
TCA6416PWG4I/O Expanders | Texas Instruments | IC I/O EXPANDER I2C 16B 24TSSOP | In Stock | 240+: $1.59313 | |
TCA6416PWTI/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
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