Los dispositivos de esta familia se utilizan junto con microcontroladores, microprocesadores o dispositivos similares con el fin de aumentar la cantidad de conexiones de señal disponibles para conectar dispositivos periféricos. El concepto típico de operación implica el uso de comunicaciones en serie que requieren solo unas pocas líneas de E/S en el dispositivo host para leer/escribir el estado de muchos pines de entrada/salida en el dispositivo expansor. La técnica intercambia velocidad de comunicación por una mayor conectividad y es más adecuada para aplicaciones donde la respuesta rápida no es crítica, como en muchas aplicaciones de interfaz humana.
| Parte # | Fabricante | Descripción | Disponibilidad | Precios | Cantidad |
|---|---|---|---|---|---|
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 | En 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 | En 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 | En 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 | En stock | 183+: $1.44320 2000+: $1.22537 4000+: $1.19926
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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 | En 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 | En 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 | En 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 | En stock | 2000+: $1.11452 4000+: $1.09035 6000+: $1.07825 | |
PCA9539DBI/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 | 30 | 1+: $3.03772 10+: $2.57828 30+: $2.29028 | |
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 | |
PCA9539PWRE4I/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 | En stock | 2000+: $1.62195 4000+: $1.58910 | |
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 | En 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 | En 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 | En stock | 2000+: $0.69833 6000+: $0.67247 10000+: $0.64661 | |
PCA9554DBRI/O Expanders | Texas Instruments | I2C/SMBus Interface 400kHz 5.5V 16-Pin SSOP T/R | 532 | 1+: $1.95360 10+: $1.44936 25+: $1.32211
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PCA9554PWRI/O Expanders | Texas Instruments | 8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 16-TSSOP -40 to 85 | 577 | 1+: $1.70743 10+: $1.44857 30+: $1.28743
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PCA9554PWRG4I/O Expanders | Texas Instruments | 8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 16-TSSOP -40 to 85 | En stock | 2000+: $1.05841 4000+: $1.03525 6000+: $1.02364 | |
PCA9555DWI/O Expanders | Texas Instruments | Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-SOIC -40 to 85 | 954 | 1+: $2.66640 10+: $1.99496 25+: $1.82723
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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 | En stock | 2000+: $1.02974 4000+: $1.00708 6000+: $0.99574 | |
PCA9557DBI/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 | En stock | 161+: $1.63680 1040+: $1.09945 | |
PCA9557DTI/O Expanders | Texas Instruments | Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SOIC -40 to 85 | 357 | 1+: $1.64560 10+: $1.21352 25+: $1.10493
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PCA9557PWTI/O Expanders | Texas Instruments | 8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers 16-TSSOP -40 to 85 | 304 | 1+: $1.64560 10+: $1.21352 25+: $1.10493
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