TCA6416A - Texas Instruments

TCA6416A Low-Voltage 16-Bit I2C and SMBus I/O Expander

The TCA6416A is a 24-pin device that provides 16bits of general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol. The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V on the I2C bus side (VCCI) and a power supply voltage ranging from 1.65 V to 5.5 V on the P-port side (VCCP)..

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 3 μA
• 5-V Tolerant I/O ports
• 400-kHz Fast I2C bus
• Hardware address pin allows two TCA6416A devices on the same I2C/SMBus bus
• Active-low reset input ( RESET)
• Open-drain active-low interrupt output ( INT)
• Input/output configuration register
• Polarity inversion register
• Internal power-on reset
• Power-up with all channels configured as.