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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 | Quantity |
|---|---|---|---|---|---|
 PCA9535DBQRI/O Expanders | Texas Instruments | 16-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 24-SSOP -40 to 85 | In Stock | - | |
 PCA9535DBRI/O Expanders | Texas Instruments | 16-Bit I2C I/O Expander, 400kHz, 16 I/Os, 25mA, SSOP | 1 | 1+: $1.36020 10+: $1.32570 30+: $1.30440 | |
 PCA9535DWRI/O Expanders | Texas Instruments | 16-Bit I2C I/O Expander, 400kHz, SOIC, 2.3-5.5V | 20 | 1+: $5.66110 10+: $5.04830 30+: $4.65570 | |
 PCA9536DGKRI/O Expanders | Texas Instruments | I2C I/O Expander, 4-Bit, 400kHz, 5.5V, VSSOP | 2177 | 1+: $1.17250 10+: $0.95380 30+: $0.83710
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PCA9539DBRI/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 | 75 | 1+: $3.95420 10+: $3.49920 30+: $3.26750 | |
 PCA9539DGVRI/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 | 3 | 1+: $2.47730 10+: $2.18160 30+: $1.97300 | |
PCA9539DWRI/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 | 45 | 1+: $6.38230 10+: $5.69230 30+: $5.24870
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 PCA9539PWRI/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 | 1892 | 1+: $1.16310 2000+: $1.12860 | |
PCA9555DBQRI/O Expanders | Texas Instruments | Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-SSOP -40 to 85 | In Stock | - | |
PCA9555DBRI/O Expanders | Texas Instruments | Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-SSOP -40 to 85 | 1138 | 1+: $1.89410 10+: $1.71510 30+: $1.58860
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PCA9555DGVRI/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-TVSOP -40 to 85 | 10 | 1+: $3.00630 10+: $2.92750 30+: $2.87490 | |
PCA9555DWRI/O Expanders | Texas Instruments | Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-SOIC -40 to 85 | 536 | 1+: $2.93070 10+: $2.62680 30+: $2.47240
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 PCA9555PWRI/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 | 1330 | 1+: $1.21610 10+: $1.01280 30+: $0.91030
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 PCA9557DBRI/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 | - | |
 PCA9557DGVRI/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 | 200 | 1+: $2.99970 10+: $2.64160 30+: $2.45760
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 PCA9557DRI/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 | 755 | 1+: $0.74250 2500+: $0.71300 | |
 PCA9557PWRI/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 | 1160 | 1+: $0.65220 2000+: $0.62590 | |
PCF8575CDBRI/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 | - | |
 PCF8575CRGERI/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 | - | |
PCF8575DWRI/O Expanders | Texas Instruments | 16-Bit I2C I/O Expander, 400kHz, 5.5V, SOIC | 847 | 1+: $3.00800 10+: $2.56440 30+: $2.28510
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PCF8575RGERI/O Expanders | Texas Instruments | 16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-VQFN -40 to 85 | 138 | 1+: $3.10320 10+: $2.62350 30+: $2.22760
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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 | 1 | 1+: $2.21780 10+: $1.88260 30+: $1.67240 | |
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 | 5 | 1+: $1.70190 10+: $1.44570 30+: $1.28300 | |
PCA9554DWRI/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 | - | |
 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 | - |
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