Overview
The SN74LXC8T245PWR is an 8-bit, dual-supply noninverting bidirectional voltage level translation device produced by Texas Instruments. This component is designed to facilitate voltage level shifting between two different voltage domains, making it highly versatile for various electronic systems. The device features fully configurable dual-rail design, allowing each port to operate from 1.1 V to 5.5 V, and supports data transmission in both directions based on the control inputs DIR and OE.
Key Specifications
| Parameter | Value |
|---|---|
| Package | TSSOP (PW), 24 pins |
| Operating Temperature Range | –40°C to 125°C |
| VCCA and VCCB Voltage Range | 1.1 V to 5.5 V |
| Data Transmission Speed | Up to 420 Mbps for 3.3 V to 5.0 V |
| Supply Current (VCCA and VCCB) | Maximum 12 µA at –40°C to 125°C |
| ESD Protection | 4000-V Human-Body Model, 1000-V Charged-Device Model |
| Latch-up Performance | Exceeds 100 mA per JESD 78, Class II |
| Thermal Resistance (RθJA) | 99.6 °C/W for TSSOP (PW) package |
Key Features
- Fully configurable dual-rail design allowing each port to operate from 1.1 V to 5.5 V.
- Robust, glitch-free power supply sequencing.
- Schmitt-trigger inputs for handling slow or noisy inputs.
- I/Os with integrated dynamic pull-down resistors to reduce external component count.
- Control inputs with integrated static pull-down resistors for floating control inputs.
- High drive strength (up to 32 mA at 5 V).
- Low power consumption with maximum 12 µA at –40°C to 125°C.
- VCC isolation and VCC disconnect (Ioff-float) feature.
- Support for partial-power-down mode operation.
- Compatible with LVC family level shifters.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- ESD protection exceeds JESD 22 – 4000-V Human-Body Model and 1000-V Charged-Device Model.
Applications
- Eliminate slow or noisy input signals.
- Driving indicator LEDs or buzzers.
- Debouncing a mechanical switch.
- General purpose I/O level shifting.
- Push-pull level shifting (UART, SPI, JTAG, etc.).
- Infotainment head units.
- Advanced Driver Assistance Systems (ADAS) fusion.
Q & A
- What is the SN74LXC8T245PWR used for? The SN74LXC8T245PWR is used for voltage level translation between two different voltage domains in electronic systems.
- What is the operating temperature range of the SN74LXC8T245PWR? The operating temperature range is –40°C to 125°C.
- What are the voltage ranges for VCCA and VCCB? Both VCCA and VCCB can operate from 1.1 V to 5.5 V.
- What is the maximum data transmission speed supported by the SN74LXC8T245PWR? Up to 420 Mbps for 3.3 V to 5.0 V.
- How does the device handle power supply sequencing? The device features robust, glitch-free power supply sequencing.
- What type of inputs does the SN74LXC8T245PWR have? The device has Schmitt-trigger inputs to handle slow or noisy inputs.
- What is the ESD protection level of the SN74LXC8T245PWR? The device has ESD protection exceeding JESD 22 – 4000-V Human-Body Model and 1000-V Charged-Device Model.
- Can the SN74LXC8T245PWR operate in partial-power-down mode? Yes, the device supports partial-power-down mode operation.
- What are some common applications of the SN74LXC8T245PWR? Common applications include driving indicator LEDs, debouncing mechanical switches, general purpose I/O level shifting, and use in infotainment head units and ADAS systems.
- What is the thermal resistance (RθJA) for the TSSOP (PW) package? The thermal resistance (RθJA) for the TSSOP (PW) package is 99.6 °C/W.
