Overview
The SN74LXC8T245-Q1, produced by Texas Instruments, is an 8-bit, dual-supply noninverting bidirectional voltage level translation device. This component is designed to operate in a wide range of voltage levels, making it highly versatile for various applications. It is AEC-Q100 qualified, ensuring its suitability for automotive applications. The device features fully configurable dual-rail design, allowing each port to operate from 1.1 V to 5.5 V, and it supports operating temperatures from –40°C to +125°C.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Operating Voltage Range (VCCA and VCCB) | Voltage range for both A and B ports | 1.1 V to 5.5 V |
| Operating Temperature Range | Temperature range for device operation | –40°C to +125°C |
| ESD Protection | Human-Body Model and Charged-Device Model | 4000 V and 1000 V respectively |
| Latch-up Performance | Exceeds JESD 78, Class II | > 100 mA |
| Package Options | Available packages | PW (TSSOP), RHL (VQFN), DGS (VSSOP) |
| Body Size (Nominal) | Dimensions for each package | PW: 7.80 mm × 6.40 mm, RHL: 5.50 mm × 3.50 mm, DGS: 6.10 mm × 3.00 mm |
| Junction-to-Ambient Thermal Resistance | Thermal resistance for each package | PW: 99.6°C/W, RHL: 47.4°C/W, DGS: 86.2°C/W |
Key Features
- Fully configurable dual-rail design allowing each port to operate from 1.1 V to 5.5 V.
- AEC-Q100 qualified for automotive applications.
- Operating temperature range from –40°C to +125°C.
- ESD protection exceeds JESD 22 standards (4000-V Human-Body Model and 1000-V Charged-Device Model).
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- Control inputs and data I/Os have weak pulldowns to prevent floating lines.
Applications
- Eliminate slow or noisy input signals.
- Driving indicator LEDs or buzzers.
- Debouncing a mechanical switch.
- Infotainment head units.
- Advanced Driver Assistance Systems (ADAS) fusion.
Q & A
- What is the operating voltage range for the SN74LXC8T245-Q1?
The operating voltage range for both VCCA and VCCB is from 1.1 V to 5.5 V.
- What is the operating temperature range for this device?
The device operates from –40°C to +125°C.
- What kind of ESD protection does the SN74LXC8T245-Q1 offer?
The device offers ESD protection exceeding JESD 22 standards, with 4000-V Human-Body Model and 1000-V Charged-Device Model.
- Is the SN74LXC8T245-Q1 suitable for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications.
- What are the available package options for the SN74LXC8T245-Q1?
The available packages are PW (TSSOP), RHL (VQFN), and DGS (VSSOP).
- How does the direction-control signal (DIR) function in this device?
A high on DIR allows data transmission from A to B, and a low on DIR allows data transmission from B to A when OE is set to low.
- What happens when the Output Enable (OE) is set to high?
When OE is set to high, both Ax and Bx pins are in the high-impedance state.
- What is the purpose of the weak pulldowns on control inputs and data I/Os?
The weak pulldowns prevent the lines from floating when undefined external to the device.
- What are some typical applications of the SN74LXC8T245-Q1?
Typical applications include eliminating slow or noisy input signals, driving indicator LEDs or buzzers, debouncing mechanical switches, infotainment head units, and ADAS fusion.
- How does the device handle thermal management?
The device has specified junction-to-ambient thermal resistance values for each package type, ensuring proper thermal management.
