Datasheet Details
| Part number | PCA9555 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 2.86 MB |
| Description | Remote 16-bit I2C and SMBus I/O Expander |
| Datasheet | PCA9555-etcTI.pdf |
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Overview: Product Folder Order Now Technical Documents Tools & Software Support & munity PCA9555 SCPS131I – AUGUST 2005 – REVISED APRIL 2019 PCA9555 Remote 16-bit I2C and SMBus I/O Expander with Interrupt Output and Configuration.
| Part number | PCA9555 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 2.86 MB |
| Description | Remote 16-bit I2C and SMBus I/O Expander |
| Datasheet | PCA9555-etcTI.pdf |
|
|
|
This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation.
It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)].
The PCA9555 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active high or active low operation) registers.
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
 |
PCA9555 | 16-bit I2C-bus and SMBus I/O port | NXP |
 |
PCA9555 | Low-voltage 16-bit I2C-bus I/O port | nexperia |
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PCA9555A | Low-voltage 16-bit I2C-bus I/O port | NXP |
| Part Number | Description |
|---|---|
| PCA9554 | Remote 8-Bit I2C AND SMBus I/O Expander |
| PCA9554A | Remote 8-Bit I2C and SMBus I/O Expander |
| PCA9557 | Remote 8-Bit I2C and SMBus Low-Power I/O Expander |
| PCA9515A | Dual Bidirectional I2C Bus and SMBus Repeater |
| PCA9515B | Dual Bidirectional I2C Bus and SMBus Repeater |
| PCA9517 | Level-Translating I2C Bus Repeater |
| PCA9518 | Expandable Five-Channel I2C HUB |
| PCA9534 | Remote 8-Bit I2C and SMBus Low-Power I/O Expander |
| PCA9534A | Remote 8-BIT I2C and SMBus Low-Power I/O Expander |
| PCA9535 | Remote 16-BIT I2C and SMBus Low-Power I/O Expander |