Overview
The SN74AXC4T245-Q1, produced by Texas Instruments, is a 4-bit non-inverting bus transceiver designed for asynchronous communication between data buses. This device is AEC-Q100 qualified, making it suitable for automotive applications. It features a fully-configurable dual-rail design, allowing each port to operate with a power supply range from 0.65V to 3.6V. The device supports voltage translation and tri-state outputs, and it is available in various packages including TSSOP, WQFN, and UQFN.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| VCCA (Supply Voltage A) | 0.65 | 3.6 | V |
| VCCB (Supply Voltage B) | 0.65 | 3.6 | V |
| VI (Input Voltage) | -0.5 | 4.2 | V |
| VO (Output Voltage in High or Low State) | -0.5 | VCCA + 0.2 / VCCB + 0.2 | V |
| IO (Continuous Output Current) | -50 | 50 | mA |
| TJ (Junction Temperature) | -40 | 125 | °C |
| Tstg (Storage Temperature) | -65 | 150 | °C |
| ESD (Electrostatic Discharge) | ±8000 (HBM), ±1000 (CDM) | V |
Key Features
- AEC-Q100 qualified for automotive applications.
- Available in wettable flank QFN (WBQB) package.
- 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.
- Multiple direction control pins for simultaneous up and down translation.
- Glitch-free power supply sequencing.
- Up to 380 Mbps support when translating from 1.8V to 3.3V.
- VCC isolation feature: outputs become high impedance if either VCC input is below 100mV.
- 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
- Infotainment head unit.
- ADAS fusion.
- ADAS front camera.
- Hybrid electric vehicles and electric vehicles battery management system.
- Telematics control unit.
Q & A
- What is the operating temperature range of the SN74AXC4T245-Q1?
The operating temperature range is from –40°C to +125°C.
- What are the supported power supply voltage ranges for VCCA and VCCB?
Both VCCA and VCCB can operate with a power supply range from 0.65V to 3.6V.
- What is the maximum data translation speed supported by the device?
The device supports up to 380 Mbps when translating from 1.8V to 3.3V.
- Does the device have ESD protection?
- What packages are available for the SN74AXC4T245-Q1?
The device is available in TSSOP, WQFN, and UQFN packages.
- Is the device suitable for automotive applications?
- How does the VCC isolation feature work?
If either VCCA or VCCB is below 100mV, the outputs become high impedance.
- Does the device support partial-power-down mode?
- Is the device compatible with other level shifters?
- What is the latch-up performance of the device?
The latch-up performance exceeds 100mA per JESD 78, class II.
