SN74LV8T138MPWREP

Overview

The SN74LV8T138MPWREP is an enhanced product 3-line to 8-line decoder/demultiplexer with integrated logic level shifting. It operates on a single supply voltage ranging from 1.65V to 5.5V and features 5.5V tolerant input pins. The device supports up-translation for lower voltage CMOS inputs and down-translation for higher voltage signals. It includes balanced CMOS push-pull outputs, latch-up performance exceeding 250mA per JESD 17, and Ioff circuitry for partial-power-down applications.

Feature Summary

• Integrated logic level translation supporting both up-translation of low-voltage inputs and down-translation of 5.5V tolerant signals
• Balanced CMOS push-pull outputs designed to minimize overshoot and undershoot in output expansion applications
• Enhanced product specifications including controlled baseline, extended lifecycle, and full traceability for defense and aerospace use

Applications

• Enabling or disabling digital signals within system controllers
• Controlling indicator LEDs through decoded address lines
• Translation between communication modules and system controllers across different voltage domains

Procurement Notes

Verify the specific MPWREP suffix against the manufacturer's official documentation to confirm it denotes the Enhanced Product variant with controlled baseline and traceability requirements. Ensure that the ordering information matches the exact package type and thermal metrics specified in the datasheet to avoid compatibility issues during integration.

Selection Notes

Select this component when designing systems requiring simultaneous decoding and voltage level translation between disparate logic families. It is suitable for high-performance memory decoding where minimizing system delay is critical. Consider its wide operating temperature range and robust latch-up protection for environments demanding high reliability.

Part Context

This part belongs to Texas Instruments' LVxT family of logic devices, which are characterized by integrated voltage level translation capabilities. The SN74LV8T138-EP specifically provides three-to-eight decoding functionality while maintaining compatibility with standard function pinouts, facilitating direct replacement in existing designs without layout modifications.

Replacement Considerations

Direct replacements must be sourced from the SN74LV8T138-EP family to ensure identical pinout and functional characteristics. Verify that any substitute component also meets the enhanced product requirements for controlled baseline and traceability if used in regulated applications.