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 |
|---|---|---|---|---|---|
MAX7310ATE+TI/O Expanders | Analog Devices Inc./Maxim Integrated | IC XPNDR 400KHZ I2C SMBUS 16TQFN | 1376 | 1+: $5.73760 10+: $4.41320 25+: $4.08214
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PCA6107DWI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 18-SOIC -40 to 85 | In Stock | 188+: $1.40800 | |
PCA6107DWRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 18-SOIC -40 to 85 | In Stock | 166+: $1.59280 | |
PCA9534ADBI/O Expanders | Texas Instruments | Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-SSOP -40 to 85 | 409 | 1+: $2.66640 10+: $1.99584 80+: $1.66936
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PCA9534ADBRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-SSOP -40 to 85 | In Stock | 2000+: $1.22537 4000+: $1.19926 6000+: $1.18617 | |
PCA9534ADGVRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-TVSOP -40 to 85 | In Stock | 183+: $1.44320 2000+: $1.22537 4000+: $1.19926
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PCA9534APWRI/O Expanders | Texas Instruments | 8-Bit I/O Expander, I2C, 400kHz, 5.5V, TSSOP | 8 | 1+: $1.12628 10+: $1.10228 30+: $1.08685 | |
PCA9534DBI/O Expanders | Texas Instruments | 8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 16-SSOP -40 to 85 | 499 | 1+: $2.70160 10+: $2.02576 80+: $1.69510
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PCA9534DBRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-SSOP -40 to 85 | In Stock | 1+: $2.39360 2000+: $1.26467 4000+: $1.23785
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PCA9534DGVRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-TVSOP -40 to 85 | In Stock | 1+: $2.01520 2000+: $1.26467 4000+: $1.23785
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PCA9534PWRI/O Expanders | Texas Instruments | 8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 16-TSSOP -40 to 85 | 2592 | 10+: $0.73200 30+: $0.64457 100+: $0.55715
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PCA9534PWRG4I/O Expanders | Texas Instruments | Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers 16-TSSOP -40 to 85 | In Stock | 2000+: $0.65758 4000+: $0.64189 6000+: $0.63404
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PCA9535DBI/O Expanders | Texas Instruments | Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-SSOP -40 to 85 | In Stock | 156+: $1.69840 | |
PCA9535DWI/O Expanders | Texas Instruments | Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-SOIC -40 to 85 | 58 | 1+: $2.91280 10+: $2.18768 25+: $2.00675
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PCA9536DGKRG4I/O Expanders | Texas Instruments | 4-bit 2.3- to 5.5-V I2C/SMBus I/O expander with config registers 8-VSSOP -40 to 85 | In Stock | 2500+: $0.55131 5000+: $0.53847 7500+: $0.53204
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PCA9536DRI/O Expanders | Texas Instruments | 4-Bit I2C/SMBus I/O Expander, 400kHz, 8-SOIC, SM | 5604 | 1+: $1.17920 10+: $0.85800 25+: $0.77722
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PCA9536DRG4I/O Expanders | Texas Instruments | Remote 4-Bit I2C and SMBus I/O Expander With Configuration Registers 8-SOIC -40 to 85 | In Stock | 2500+: $0.55131 5000+: $0.53847 7500+: $0.53204
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PCA9538DBI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 16-SSOP -40 to 85 | In Stock | 176+: $1.49600 | |
PCA9538DGVRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 16-TVSOP -40 to 85 | In Stock | 2000+: $1.11452 4000+: $1.09035 6000+: $1.07825 | |
PCA9539DWI/O Expanders | Texas Instruments | Remote 16-Bit I2C And SMBus, Low-Power I/O Expander With Interrupt Output, Reset & Config. Registers 24-SOIC -40 to 85 | 200 | 1+: $2.99485 | |
PCA9554ADBRI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85 | 30 | 1+: $2.01257 10+: $1.77428 30+: $1.60628 | |
PCA9554ADGVRI/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 | 180+: $1.46080 2000+: $0.69833 6000+: $0.67247
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PCA9554APWG4I/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 | 450+: $0.74198 | |
PCA9554APWRI/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+: $0.69833 6000+: $0.67247 10000+: $0.64661 | |
PCA9555PWRE4I/O Expanders | Texas Instruments | Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-TSSOP -40 to 85 | In Stock | 2000+: $1.02974 4000+: $1.00708 6000+: $0.99574 |