M74LCX16240DTR2G

Overview

The M74LCX16240DTR2G is a low-voltage CMOS 16-bit buffer with 5 V-tolerant inputs and outputs, manufactured by onsemi. It operates from a 2.3 V to 3.6 V supply and features nibble control with separate Output Enable inputs for each of the four nibbles. The device provides inverting buffers with 3-state outputs capable of driving up to 24 mA. It supports live insertion and withdrawal, ensuring high impedance when VCC is 0 V. The component is housed in a TSSOP-48 package.

Feature Summary

• Features 5.0 V tolerant inputs and outputs for safe interfacing with 5.0 V TTL logic devices.
• Supports live insertion and withdrawal with an IOFF specification that guarantees high impedance when VCC equals 0 V.
• Provides balanced output sink and source capability of 24 mA for improved switching noise performance.
• Operates with near zero static supply current across all three logic states to substantially reduce system power requirements.

Applications

• Memory address driving
• TTL level bus oriented transceiver applications
• Interface capability with 5.0 V TTL logic

Procurement Notes

Verify the specific ordering suffix DTR2G corresponds to the TSSOP-48 package and tape and reel shipping configuration. Confirm RoHS compliance and Pb-free status as indicated in the datasheet. Ensure the procurement matches the M74LCX variant rather than the MC74LCX variant if specific marking or historical revision differences are required for the design.

Selection Notes

Select this component for designs requiring 16-bit buffering with independent nibble control. It is suitable for systems needing 5 V tolerance on both input and output lines while operating at lower voltages between 2.3 V and 3.6 V. Consider the TSSOP-48 package constraints and the requirement for separate Output Enable pins for each nibble when planning the PCB layout and signal routing.

Part Context

This part belongs to the LCX series of low-voltage CMOS logic devices from onsemi. The LCX family is designed for high-speed operation with low power consumption. The M74LCX16240 specifically addresses the need for wide data path buffering with voltage translation capabilities, bridging low-voltage core logic with 5 V peripheral interfaces.

Replacement Considerations

MC74LCX16240DTR2G