PCA9555
Features
- 1 Low Standby-Current Consumption of 1 μA Max
- I2C to Parallel Port Expander
- Open-Drain Active-Low Interrupt Output
- 5-V Tolerant I/O Ports
- patible With Most Microcontrollers
- 400-k Hz Fast I2C Bus
- Address by Three Hardware Address Pins for Use of up to Eight Devices
- Polarity Inversion Register
- Latched Outputs With High-Current Drive
Capability for Directly Driving LEDs
- Latch-Up Performance Exceeds 100 m A Per
JESD 78, Class II
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
2 Applications
- Servers
- Routers (Tele Switching Equipment)
- Personal puters
- Personal Electronics
- Industrial Automation Equipment
- Products with GPIO-Limited Processors
3 Description
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...
