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TCA7408
SCPS235D – NOVEMBER 2011 – REVISED APRIL 2018
TCA7408 Low-
Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output, RESET Input, I/O Direction Registers, and Programmable Pull-Up/Pull-Down
1 Features
•1 Operating Power-Supply
Voltage Range of 1.
65 to 3.
6 V
• Allows Bidirectional
Voltage-Level Translation and GPIO Expansion Between 1.
8-V, 2.
5-V, 3.
3-V GPIO Port and – 1.
8-V SCL/SDA – 2.
5-V SCL/SDA – 3.
3-V SCL/SDA – 5-V SCL/SDA
• Standby Current Consumption of 2 µA at 1.
8 V • Active Current Consumption of:
– 2 µA at 1.
8-V 100-kHz Clock – 5 µA at 1.
8-V 400-kHz Clock • 100-kHz, 400-kHz Fast...