74LVT2245SJX

Overview

The onsemi 74LVT2245SJX is a low-voltage octal bidirectional transceiver featuring 3-STATE inputs and outputs. It operates within a supply voltage range of 2.7V to 3.6V and supports an input voltage up to 5.5V, enabling direct interface with 5V systems. The device incorporates equivalent 25Ω series resistors in the B port outputs to reduce signal overshoot and undershoot. It utilizes advanced BiCMOS technology for high-speed operation while maintaining low power dissipation.

Feature Summary

• Bidirectional data flow controlled by Transmit/Receive (T/R) input
• Built-in 25Ω series resistors on B Port outputs for signal integrity
• Glitch-free bus loading during power-up and power-down cycles
• High noise immunity with ESD protection exceeding 2000V HBM

Applications

• Bus-oriented applications requiring bidirectional data transfer
• Interfacing 3.3V logic systems with 5V environments
• Memory and microcontroller-based system architectures

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package type matches SOP-20 specifications. Ensure compliance with RoHS standards as indicated in manufacturer documentation. Validate operating temperature ranges against application requirements before integration.

Selection Notes

Select this component for designs requiring robust bidirectional buffering between different voltage domains. The integrated series resistors simplify PCB layout by reducing external component count. Consider the specific current drive capabilities of A and B ports when designing load circuits.

Part Context

This part belongs to the LVT logic family, designed for low-voltage digital applications. It serves as a bridge between 3.3V and 5V logic levels, offering high-speed performance comparable to older 5V ABT families but with reduced power consumption. The SOP-20 package provides a compact solution for surface-mount assembly.

Replacement Considerations

Check for pin-compatible alternatives from other manufacturers if sourcing becomes difficult. Verify that substitute devices maintain the same 25Ω series resistor characteristic on the B port to ensure signal integrity remains uncompromised.