SN74LXC2T45DTTR

Translators, Level Shifters Overview

The SN74LXC2T45DTTR is a dual-bit, dual-supply noninverting bidirectional voltage level translation device manufactured by Texas Instruments. It supports configurable voltage ranges from 1.1 V to 5.5 V on both ports. The component features Schmitt-trigger inputs for noisy signal handling and integrated dynamic pull-down resistors on I/Os. It provides high drive strength up to 32 mA at 5 V and low power consumption with maximum supply currents of 3 µA at 25°C and 6 µA across the extended temperature range. Operating temperatures span from -40°C to +125°C.

Translators, Level Shifters Feature Summary

• Robust glitch-free power supply sequencing ensures stable operation during power transitions.
• Schmitt-trigger inputs effectively eliminate slow or noisy input signals.
• Integrated dynamic pull-down resistors on I/Os reduce the need for external components.
• VCC isolation and disconnect (Ioff-float) feature pulls all I/Os high-impedance if either supply drops below 100 mV.

Translators, Level Shifters Applications

• Eliminating slow or noisy input signals in digital circuits
• Driving indicator LEDs or buzzers
• Debouncing mechanical switches
• Infotainment head unit interfaces
• ADAS fusion systems

Translators, Level Shifters Procurement Notes

Verify the specific package type against the ordering suffix 'DTTR', which corresponds to the X2SON package. Confirm that the required operating temperature range aligns with the specified -40°C to +125°C limits. Ensure that the voltage levels on both VCCA and VCCB fall within the 1.1 V to 5.5 V operational window. Check for any specific ESD protection requirements relative to the human-body and charged-device models defined in the datasheet.

Translators, Level Shifters Selection Notes

Select this component when bidirectional translation between two independent voltage domains is required. It is suitable for applications needing robust noise immunity due to Schmitt-trigger inputs. Consider its high drive capability for direct LED driving or switch debouncing without additional buffering. Verify compatibility with LVC family logic levels if interfacing with other standard logic devices.

Translators, Level Shifters Part Context

This device belongs to the SN74LXC2T45 series of dual-supply bus transceivers. It is designed for asynchronous communication between data buses operating at different voltage levels. The series emphasizes configurable dual-rail design, allowing each port to operate independently within the supported voltage range while maintaining signal integrity through advanced input conditioning.

Translators, Level Shifters Replacement Considerations

SN74LXC2T45DCTT

Translators, Level Shifters FAQ

How does the device handle partial power-down scenarios?

The Ioff feature supports partial-power-down mode, ensuring that leakage current remains minimal when one port is powered down while the other remains active.

What is the function of the DIR pin?

The DIR pin controls the direction of data transmission. A high logic level enables transmission from Port A to Port B, while a low logic level enables transmission from Port B to Port A.