MC74LVX4245DTR2

Translators, Level Shifters Overview

The MC74LVX4245DTR2 is a dual-supply octal translating transceiver with 3-state outputs. It interfaces between a 5.0 V bus (Port A) and a 3.0 V bus (Port B). Supply voltage ranges are 4.5 V to 5.5 V for VCCA and 2.7 V to 3.6 V for VCCB. Propagation delay is typically 5.1 ns from A to B and 5.4 ns from B to A. Outputs source/sink 24 mA at the 5.0 V bus and 12 mA at the 3.0 V bus. The device operates within a temperature range of -40°C to +85°C.

Translators, Level Shifters Feature Summary

• Bi-directional interface capability between 5.0 V and 3.0 V buses
• Control inputs compatible with TTL level signals
• Functionally compatible with the standard 74 Series 245

Translators, Level Shifters Applications

• Mixed mode dual supply interface solutions
• Laptop computers using 3.3 V CPUs and 5.0 V LCD displays
• Interfaces between low voltage CPU local buses and standard 5.0 V I/O buses

Translators, Level Shifters Procurement Notes

Verify the exact ordering suffix, as 'DTR2' may differ from the documented 'DTR2G'. Confirm current availability status, as some variants in this series are discontinued. Ensure the specific package type matches design requirements. Check RoHS compliance documentation for the specific manufacturing lot.

Translators, Level Shifters Selection Notes

Select this component when interfacing mixed voltage domains requiring bidirectional translation. Ensure power-up sequencing favors VCCA before VCCB to prevent excessive current draw. Verify that control inputs meet TTL compatibility requirements. Confirm package dimensions match the PCB footprint.

Translators, Level Shifters Part Context

This device belongs to the LVX logic family, designed for low-voltage CMOS applications. It serves as a level shifter for mixed-signal environments. The pinout aligns with standard 74-series devices, facilitating direct replacement in existing layouts where both buses operate at the same voltage.

Translators, Level Shifters Replacement Considerations

Direct functional replacements include other 74LVX4245 variants. Verify package compatibility if substituting SOIC-24 versions. Ensure voltage ratings match the target application's bus levels.