PI74AUC164245KE

Translators, Level Shifters Overview

The PI74AUC164245KE is a 16-bit dual-octal noninverting bus transceiver featuring two separate supply rails (VCCA and VCCB) configurable from 0.8V to 2.7V. It supports universal bidirectional voltage translation between asynchronous data buses. The device includes IOFF circuitry for partial power-down mode, preventing damaging backflow current when powered down. It offers 3-state outputs and is available in a 48-pin TVSOP package.

Translators, Level Shifters Feature Summary

• Supports universal bidirectional translation across configurable supply ranges of 0.8V to 2.7V on both ports.
• Includes IOFF circuitry to disable outputs during partial power-down, preventing damaging current backflow.
• Provides high ESD protection exceeding JESD22 standards with 2000V Human Body Model and 200V Machine Model ratings.
• Features latch-up performance exceeding 100mA per JESD 78 specification.

Translators, Level Shifters Applications

• Asynchronous communication between data buses requiring level shifting
• Partial-power-down applications utilizing IOFF functionality
• Low voltage system designs operating within the 0.8V to 2.7V range

Translators, Level Shifters Procurement Notes

Verify that the ordering suffix 'K' corresponds specifically to the 48-pin plastic 173-mil TVSOP package as defined in the official datasheet. Confirm the presence of the 'E' suffix indicates Pb-free and Green compliant packaging if required by specific project constraints. Ensure compatibility with industrial temperature operation ranging from –40°C to +85°C.

Translators, Level Shifters Selection Notes

Select this component when designing systems requiring independent voltage domains for input and output ports within the 0.8V to 2.7V range. The dual-supply architecture allows flexible level shifting configurations. Consider the TVSOP package dimensions for PCB layout constraints and verify that the drive capability meets the load requirements of the connected bus lines.

Translators, Level Shifters Part Context

This device belongs to the PI74AUC series of low-voltage logic components manufactured by Diodes Incorporated. It functions as a scalable level-shifting transceiver designed for modern low-power digital interfaces. The part integrates standard bus transceiver control logic with specialized features for power management and signal integrity in mixed-voltage environments.

Translators, Level Shifters Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.

Translators, Level Shifters FAQ

How does the device handle partial power-down conditions?

The PI74AUC164245KE utilizes IOFF circuitry to automatically disable the outputs, thereby preventing damaging current backflow through the device when it is in a powered-down state.

What is the function of the OE and DIR inputs?

The Output-Enable (OE) input disables outputs to isolate buses, while the Direction (DIR) input determines whether data is transmitted from the A bus to the B bus or vice versa.