| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | PCF8575PWE4 | Texas Instruments | 16-Channel I/O Expander, 5.5V, 400kHz, TSSOP24 Package |
 | W83627DHG-P | Nuvoton | I/O Expander, LPC Controller, QFP, Surface Mount |
 | TCA9555DBR | Texas Instruments | 1.65 to 5.5V 16-Bit I<sup>2</sup>C and SMBus I/O Expander With Interrupt Output and Configuration Registers 24-SSOP -40 to 85 |
 | FDC37C669-MT | Microchip | 8-Bit I/O Expander with 13 I/Os, 1 Timer, 35mA Supply Current, 0-70°C |
 | PCF8575CDBG4 | Texas Instruments | 16-Bit I/O Expander, 5.5V, 400kHz, SSOP-24, RoHS Compliant |
 | PCA9555PWE4 | 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 |
 | FDC37C78-HT | Microchip | I/O Controller Floppy Disc Controller 48-Pin TQFP Tray |
 | PCA9501PW,112 | NXP | I2C/SMBus I/O Expander, 8 I/Os, 100mA, 3.6V, TSSOP-20 |
 | MCP23009T-E/SS | Microchip | 8 I/O, PIA-GENERAL PURPOSE, PDSO20, 5.30 MM, LEAD FREE, PLASTIC, SSOP-20 |
 | SCH3112I-NU | Microchip | I/O Controller 128-Pin VTQFP Tray |
No Image | PCF8575DWR | Texas Instruments | 16-Bit I2C I/O Expander, 400kHz, 5.5V, SOIC |
 | LM8333GGR8AXSX/NOPB | Texas Instruments | I2C Interface IC 4-Channel 2.9V 400kHz CSBGA-49 |
 | IQ82C55AZ96 | Renesas | 44-Pin Industrial Quad Flat Package Parallel I/O Port IC, 5V, 4.5-5.5V |
 | PCA9505DGG,118 | NXP | TSSOP56 40-Pin I2C I/O Expander 400kHz 85°C |
 | MCP23S09T-E/MG | Microchip | 8-Channel SPI I/O Expander, 10MHz, Surface Mount, -40°C to 125°C |
 | PCA9554D | NXP | 8-Bit I2C/SMBus I/O Expander, 8-Channels, 5.5V, SOT-109 |
 | PCA9538BS,118 | NXP | I2C I/O Expander, 16-Pin HVQFN, 5.5V |
 | PCF8575DGVR | Texas Instruments | 16-Bit I/O Expander, 16 I/Os, 400kHz, TFSOP, Lead Free, -40°C to 85°C |
 | PCA9534DGVR | Texas Instruments | 8-Channel I/O Expander, 8 Outputs, 400kHz, TFSOP Package, -40°C to 85°C |
 | PCA9534PW | NXP | 8-Channel I2C/SMBus I/O Expander, 400kHz, Lead Free, TSSOP-16 |