TCA9539
Features
- 1 I2C to Parallel Port Expander
- Low Standby-Current Consumption
- Open-Drain Active-Low Interrupt Output
- Active-Low Reset Input
- 5-V Tolerant I/O Ports
- patible With Most Microcontrollers
- 400-k Hz Fast I2C Bus
- Input and Output Configuration Register
- Polarity Inversion Register
- Internal Power-on Reset
- No Glitch on Power Up
- Noise Filter on SCL and SDA Inputs
- Address by Two Hardware Address Pins for Use of up to Four Devices
- 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)
- 1000-V Charged-Device Model (C101)
2 Applications
- Servers
- Routers (Tele Switching Equipment)
- Personal puters, smartphones
- Industrial Automation
- I2C GPIO Expansion
3 Description
The TCA9539 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional...
