사양
| 속성 | 가치 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| NumberofI/O | 16 |
| Interface | I²C, SMBus |
| InterruptOutput | Yes |
| Features | POR |
| OutputType | Push-Pull |
| Current-OutputSource/Sink | 10mA, 24mA |
| ClockFrequency | 400 kHz |
| Voltage-Supply | 2.3V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 24-TSSOP (0.173, 4.40mm Width) |
개요
Description
The CAT9555YI-T2 is a 16-bit I/O expander with an I²C interface, designed to simplify GPIO expansion in embedded systems. Key features include:
- 16 programmable I/O pins (configurable as inputs or outputs).
- Interrupt output for monitoring input changes.
- Low standby current (suitable for power-sensitive applications).
- Wide voltage range (1.65V to 5.5V), supporting mixed-voltage systems.
- 400 kHz I²C compatibility for fast communication.
Commonly used in consumer electronics, industrial controls, and IoT devices, it reduces MCU pin usage while adding flexibility. The T2 suffix indicates tape-and-reel packaging.
For detailed specs, refer to the datasheet.
- 16 programmable I/O pins (configurable as inputs or outputs).
- Interrupt output for monitoring input changes.
- Low standby current (suitable for power-sensitive applications).
- Wide voltage range (1.65V to 5.5V), supporting mixed-voltage systems.
- 400 kHz I²C compatibility for fast communication.
Commonly used in consumer electronics, industrial controls, and IoT devices, it reduces MCU pin usage while adding flexibility. The T2 suffix indicates tape-and-reel packaging.
For detailed specs, refer to the datasheet.
Equivalent
Equivalent products to the CAT9555YI-T2 (16-bit I/O expander with I2C interface) include:
- PCA9555PW (NXP)
- MAX7313AEE+ (Maxim Integrated)
- MCP23017-E/SP (Microchip)
- TCA6416APWR (Texas Instruments)
These chips offer similar I2C-based I/O expansion with 16 GPIOs. Verify pin compatibility and features (interrupts, voltage range) for your design.
- PCA9555PW (NXP)
- MAX7313AEE+ (Maxim Integrated)
- MCP23017-E/SP (Microchip)
- TCA6416APWR (Texas Instruments)
These chips offer similar I2C-based I/O expansion with 16 GPIOs. Verify pin compatibility and features (interrupts, voltage range) for your design.
Package
The CAT9555YI-T2 comes in a TSSOP-16 package. This surface-mount type is compact, suitable for space-constrained applications, and features 16 pins. It's commonly used for I/O expansion in various electronic designs.
