Overview
The SN74AXC2T245RSWR is a dual-bit, noninverting bus transceiver produced by Texas Instruments. This device is designed for bidirectional data transfer between devices operating at different voltage levels, making it suitable for applications requiring reliable and compatible communication. The SN74AXC2T245RSWR features a fully configurable dual-rail design, allowing each port to operate with a power supply range from 0.65V to 3.6V. It is compatible with both dual-supply and single-supply systems, and it supports asynchronous communication between data buses. The device includes direction-control inputs (DIRx) to manage data transmission between the A and B buses.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Technology Family | AXC | |
| Number of Bits | 2 | |
| High Input Voltage (min) | 0.45 | V |
| High Input Voltage (max) | 3.6 | V |
| Output Voltage (min) | 0.65 | V |
| Output Voltage (max) | 3.6 | V |
| Data Rate (max) | 380 | MBps |
| IOH (max) | -12 | mA |
| IOL (max) | 12 | mA |
| Supply Current (max) | 23 | µA |
| Input Type | CMOS | |
| Output Type | 3-State | |
| Operating Temperature Range | -40°C to 125°C | |
| Package/Case | UQFN-10 |
Key Features
- Fully configurable dual-rail design allowing each port to operate with a power supply range from 0.65V to 3.6V.
- Operating temperature range from -40°C to 125°C.
- DIR control input for each channel.
- Glitch-free power supply sequencing.
- Up to 380-Mbps support when translating from 1.8V to 3.3V.
- VCC isolation feature: disables all I/O outputs if either VCCA or VCCB is below 100mV.
- Ioff supports partial-power-down mode operation.
- Compatible with AVC-family level shifters.
- Latch-up performance exceeds 100 mA per JESD 78, class II.
- ESD protection exceeds JEDEC JS-001: 8000-V human-body model and 1000-V charged-device model.
Applications
The SN74AXC2T245RSWR is commonly used in applications requiring bidirectional level shifting between different voltage domains. These include:
- I2C communication interfaces.
- SPI communication interfaces.
- UART communication interfaces.
- JTAG interfaces.
It enables seamless data transfer between devices operating at different voltage levels, ensuring compatibility and reliable communication.
Q & A
- What is the SN74AXC2T245RSWR used for?
The SN74AXC2T245RSWR is a dual-bit, noninverting bus transceiver used for bidirectional data transfer between devices operating at different voltage levels.
- What is the power supply range for each port of the SN74AXC2T245RSWR?
Each port can operate with a power supply range from 0.65V to 3.6V.
- What is the maximum data rate supported by the SN74AXC2T245RSWR?
The device supports up to 380-Mbps data rate when translating from 1.8V to 3.3V.
- What is the VCC isolation feature of the SN74AXC2T245RSWR?
If either VCCA or VCCB is below 100mV, the VCC isolation feature disables all I/O outputs, putting them in a high-impedance state.
- Does the SN74AXC2T245RSWR support partial-power-down mode operation?
- What kind of ESD protection does the SN74AXC2T245RSWR have?
The device has ESD protection that exceeds JEDEC JS-001: 8000-V human-body model and 1000-V charged-device model.
- What is the operating temperature range of the SN74AXC2T245RSWR?
The operating temperature range is from -40°C to 125°C.
- What package type is the SN74AXC2T245RSWR available in?
The device is available in a UQFN-10 package.
- Is the SN74AXC2T245RSWR compatible with single-supply systems?
- What are some common applications of the SN74AXC2T245RSWR?
