Texas Instruments SN74AXC2T245/SN74AXC2T245-Q1 Bus Transceiver
Texas Instruments SN74AXC2T245 / SN74AXC2T245-Q1 Dual Supply Bus Transceiver is a two-bit, non-inverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with VCCA and VCCB supplies as low as 0.65V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65V to 3.6V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65V to 3.6V. The Texas Instruments SN74AXC2T245 / SN74AXC2T245-Q1 is also compatible with a single-supply system.
The SN74AXC2T245/SN74AXC2T245-Q1 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level of the direction-control inputs (DIRx). The SN74AXC2T245 / SN74AXC2T245-Q1 is designed to reference the control pin (DIR) to VCCA. This device is specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry ensures that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.
The VCC isolation feature ensures that if either VCCA or VCCB is less than 100mV, both I/O ports enter a high-impedance state by disabling the outputs. Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance. The Texas Instruments SN74AXC2T245-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- Fully configurable dual-rail design allows each port to operate with a power supply range from 0.65V to 3.6V
- Operating temperature from -40°C to +125°C
- DIR control input for each channel
- Glitch-free power supply sequencing
- Up to 380Mbps support when translating from 1.8V to 3.3V
- VCC isolation feature
- If either VCC input is below 100mV, all I/O outputs are disabled and become high-impedance
- Ioff supports partial-power-down mode operation
- Compatible with AVC-family level shifters
- Latch-up performance exceeds 100mA per JESD 78, class II
- ESD protection exceeds JEDEC JS-001
- 8000V Human-body model
- 1000V Charged-device model
Applications
- Industrial
- Personal electronics
- Wireless infrastructure
- Building automation
- Point of Sale
- Enterprise and communications
Datasheets
Functional Block Diagram
Related Development Tool
Texas Instruments AXC2T-SMALLPKGEVM Evaluation Module
Configured to support DTM and RSW packages for the AXC and LVC family of bidirectional devices.