74LVT16245MEA

Overview

The onsemi 74LVT16245MEA is a low-voltage 16-bit bidirectional bus transceiver featuring 3-STATE outputs. It operates within a supply voltage range of 2.7V to 3.6V and supports input voltages up to 5.5V, enabling TTL interface compatibility in 5V environments. The device utilizes advanced BiCMOS technology for high-speed operation with low power dissipation. Packaged in a 48-Lead Small Shrink Outline Package (SSOP), it provides byte-controlled data flow via separate control inputs that can be shorted for full 16-bit operation.

Feature Summary

• Supports live insertion and extraction while preventing glitch-free bus loading during power-up or power-down events
• Features bushold data inputs to eliminate the need for external pull-up resistors on unused inputs
• Provides bidirectional data transmission capability between two distinct logic voltage domains

Applications

• Bus-oriented applications requiring 16-bit data transfer
• Systems requiring interface translation between 3.3V and 5V logic levels
• Memory mapping and memory control circuits

Procurement Notes

Verify the specific ordering code suffix against manufacturer documentation to confirm package type and tape-and-reel availability. Ensure the component matches the required logic family specifications for your target application. Confirm RoHS compliance status and check for any obsolescence notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when designing systems that require robust bidirectional data transfer between different voltage domains. The SSOP package is suitable for surface-mount assembly where space efficiency is prioritized. Consider the 74LVTH16245 variant if bushold functionality is specifically required to simplify circuit design by removing external pull-up components.

Part Context

This component belongs to the 74LVT series of low-voltage logic devices manufactured by Fairchild Semiconductor, now part of onsemi. The 74LVT16245 is functionally compatible with the standard 74 series 16245 but optimized for lower voltage operations. It represents a transition technology designed to bridge legacy 5V systems with emerging 3.3V standards.

Replacement Considerations

The 74LVTH16245MEA serves as a functional replacement offering identical pinout and electrical characteristics, distinguished primarily by the inclusion of bushold inputs.