TCA6408A Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output, Reset, and Configuration Registers

1 Features

I²C to Parallel port expander
Operating power-supply voltage range of 1.65 V to 5.5 V
Allows bidirectional voltage-level translation and gpio expansion between 1.8-V, 2.5-V, 3.3-V, and 5-V I²C bus and P-ports
Low standby current consumption of 1 μA
5-V Tolerant I/O ports
400-kHz Fast I²C bus
Hardware address pin allows two TCA6408A Devices on the same I²C/SMBus bus
Active-low reset ( RESET) input
Open-drain active-low interrupt ( INT) output
Input and output configuration register
Polarity inversion register
Internal power-on reset
Power up with all channels configured as inputs
No glitch on power up
Noise filter on SCL and SDA inputs
Latched outputs with high-current drive maximum capability for directly driving LEDs
Latch-up performance exceeds 100 mA Per JESD 78, class II
Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
ESD Protection exceeds JESD 22
- 2000-V Human body model (A114-A)
- 1000-V Charged-device model (C101)