Overview
The SN74AXC4T774-Q1 is an automotive-grade 4-bit dual-supply bus transceiver designed by Texas Instruments. This device is optimized for asynchronous communication between data buses and is fully configurable to operate with a wide range of power supply voltages. It is AEC-Q100 qualified, ensuring its reliability and performance in automotive applications. The transceiver supports independent direction control and tri-state outputs, making it versatile for various system designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Range (VCCA and VCCB) | 0.65V to 3.6V | V |
| Operating Temperature | –40°C to +125°C | °C |
| Data Transfer Rate (1.8V to 3.3V) | Up to 310Mbps | Mbps |
| ESD Protection | 8000-V Human-Body Model, 1000-V Charged-Device Model | V |
| Package Options | TSSOP (16 pins), WQFN (16 pins), UQFN (16 pins) | |
| Junction-to-Ambient Thermal Resistance (RθJA) | 118.2°C/W (TSSOP), 130.8°C/W (UQFN), 73.7°C/W (WQFN) | °C/W |
Key Features
- AEC-Q100 qualified for automotive applications
- Fully configurable dual-rail design allowing each port to operate with a power supply range from 0.65V to 3.6V
- Independent direction control pins for configurable up and down translation
- Glitch-free power supply sequencing
- VCC Isolation Feature: outputs are disabled and become high-impedance if either VCC input is below 100mV
- Support for partial-power-down mode operation with Ioff current protection
- Compatible with AVC family level shifters
- Latch-up performance exceeds 100mA per JESD 78, Class II
- ESD protection exceeds JEDEC JS-001 standards
Applications
- Infotainment head unit
- ADAS fusion
- ADAS front camera
- HEV/EV battery management
- Telematics control unit
Q & A
- What is the SN74AXC4T774-Q1 used for? The SN74AXC4T774-Q1 is used for asynchronous communication between data buses in automotive applications.
- What is the power supply range for the SN74AXC4T774-Q1? The device operates with power supply voltages ranging from 0.65V to 3.6V for both VCCA and VCCB.
- What are the operating temperature limits for the SN74AXC4T774-Q1? The device operates from –40°C to +125°C.
- What is the maximum data transfer rate supported by the SN74AXC4T774-Q1? The device supports up to 310Mbps when translating from 1.8V to 3.3V.
- What ESD protection does the SN74AXC4T774-Q1 offer? The device offers ESD protection exceeding 8000-V Human-Body Model and 1000-V Charged-Device Model.
- What package options are available for the SN74AXC4T774-Q1? The device is available in TSSOP, WQFN, and UQFN packages.
- How does the VCC Isolation Feature work? If either VCC input is below 100mV, all I/O outputs are disabled and become high-impedance.
- Is the SN74AXC4T774-Q1 compatible with partial-power-down mode? Yes, the device supports partial-power-down mode operation with Ioff current protection.
- What are some common applications of the SN74AXC4T774-Q1? Common applications include infotainment head units, ADAS fusion, ADAS front cameras, HEV/EV battery management, and telematics control units.
- What standards does the SN74AXC4T774-Q1 meet for automotive use? The device is AEC-Q100 qualified for automotive applications.
- How does the glitch-free power supply sequencing work? The device allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.
