The TCA9416 is a 2-bit bidirectional I2C and SMBus voltage-level translator with
an output enable (OE) input and rising and falling edge accelerators. It is operational from
1.08 V to 3.6 V on both the A-side and B-side. This allows the device to interface between
lower and higher logic signal levels at any of the typical 1.2-V, 1.8-V, 2.5-V, and 3.3-V
supply rails.
The OE input pin is referenced to
VCCA, can be tied directly to
VCCA, but it is also 3.6-V tolerant.
The OE pin can also be controlled and set to a
logic low to place all the SCL and SDA pins in a
high-impedance state, which significantly reduces
the quiescent current consumption.
Under normal I2C and SMBus configurations, the TCA9416 is compatible with
standard speeds where the frequency of SCL is 100 kHz (Standard-mode), 400 kHz (Fast-mode),
or 1 MHz (Fast-mode Plus).
The TCA9416 features internal 10-kΩ pull-up
resistors on SCL_A, SDA_A, SCL_B, and SDA_B.
Additional external pull-up resistors can be added
to the bus to reduce the total pull-up resistance
and speed up rising edges.
The TCA9416 is a 2-bit bidirectional I2C and SMBus voltage-level translator with
an output enable (OE) input and rising and falling edge accelerators. It is operational from
1.08 V to 3.6 V on both the A-side and B-side. This allows the device to interface between
lower and higher logic signal levels at any of the typical 1.2-V, 1.8-V, 2.5-V, and 3.3-V
supply rails.
The OE input pin is referenced to
VCCA, can be tied directly to
VCCA, but it is also 3.6-V tolerant.
The OE pin can also be controlled and set to a
logic low to place all the SCL and SDA pins in a
high-impedance state, which significantly reduces
the quiescent current consumption.
Under normal I2C and SMBus configurations, the TCA9416 is compatible with
standard speeds where the frequency of SCL is 100 kHz (Standard-mode), 400 kHz (Fast-mode),
or 1 MHz (Fast-mode Plus).
The TCA9416 features internal 10-kΩ pull-up
resistors on SCL_A, SDA_A, SCL_B, and SDA_B.
Additional external pull-up resistors can be added
to the bus to reduce the total pull-up resistance
and speed up rising edges.