74LCX652MTC

Overview

The onsemi 74LCX652MTC is an 8-bit registered bus transceiver designed for low-voltage applications. It integrates D-type flip-flops with control circuitry to allow multiplexed transmission of data directly from the input bus or from internal registers. The device operates within a supply voltage range of 2V to 3.6V and features 5V tolerant inputs and outputs, facilitating interface between 2.5V/3.3V systems and 5V environments. Packaged in a 24-pin TSSOP, it supports industrial temperature ranges.

Feature Summary

• Multiplexed data transmission allowing direct bus access or latched register output via clock control
• Independent output enable pins for each direction to manage bidirectional data flow
• 5V tolerant I/O structure enabling safe interfacing with legacy 5V logic systems

Applications

• Low voltage memory buffer interfaces
• Bidirectional data bus drivers in embedded systems
• Level shifting between 3.3V and 5V logic domains

Procurement Notes

Verify the specific manufacturer source, as Fairchild Semiconductor was the original producer before acquisition by onsemi. Confirm RoHS compliance status through official datasheets. Check for End-of-Life notices or Production Change Notifications regarding this specific package variant. Ensure the TSSOP-24 footprint matches your PCB design requirements.

Selection Notes

Select this component when bidirectional data buffering with optional storage is required. The integrated flip-flops provide data retention capabilities not found in standard unbuffered transceivers. Verify that the 5V tolerance specification meets the voltage levels of the connected system buses. Consider the 24-pin TSSOP package constraints for board layout density.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices. It functions as a registered bus transceiver, distinct from non-registered variants like the 74LCX245. The 'MTC' suffix indicates the 24-lead Thin Shrink Small Outline Package (TSSOP). It is part of the broader LVC/LCX/Z family designed for high-speed, low-power applications.

Replacement Considerations

The 74LCX652PWDH is a documented equivalent registered bus transceiver in a similar 24-pin format. Other 8-bit registered transceivers may serve as functional substitutes if pin compatibility and electrical specifications align.