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Reference Design
TCA9535
SCPS201D – AUGUST 2009 – REVISED JULY 2016
TCA9535 Low-
Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output and Configuration Registers
1 Features
•1 I2C to Parallel Port Expander • Wide Power Supply
Voltage Range of 1.
65 V to
5V • Low Standby-Current Consumption • Open-Drain Active-Low Interrupt Output • 5-V Tolerant I/O Ports • 400-kHz Fast I2C Bus • Polarity Inversion Register • Address by Three Hardware Address Pins for Use
of up to Eight Devices • Latched Outputs With High-Current Drive
Capability for Directly Driving LEDs • Latch-Up Performance Exceeds ...