SN74AVC1T45DBVRG4

Translators, Level Shifters Overview

The SN74AVC1T45DBVRG4 is a single-channel, non-inverting bidirectional voltage-level translator and bus transceiver manufactured by Texas Instruments. It utilizes two independently configurable power supply rails, VCCA and VCCB, to facilitate seamless signal translation between different voltage domains. The device supports operation with VCCA and VCCB ranging from 1.2V to 3.6V, enabling universal low-voltage conversion between nodes such as 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. Designed for asynchronous communication on two data buses, it features a direction control input that determines the active output port. The component operates within an ambient temperature range of -40°C to +85°C and is housed in a SC-70 (SOT-353) six-pin package.

Translators, Level Shifters Feature Summary

• Dual configurable power supply rails allow independent tracking of A and B ports for flexible voltage domain interfacing
• Integrated Ioff circuit disables outputs during partial power-down conditions to prevent excessive current flow
• Direction control input actively selects data transmission path between A and B ports for asynchronous bus communication
• VCC isolation ensures high-impedance state on both ports if either supply input falls to ground

Translators, Level Shifters Applications

• Asynchronous communication interfaces between microcontrollers and peripherals operating at different logic levels
• Low-voltage bidirectional level shifting in portable and battery-powered electronic devices
• System interconnects requiring translation between 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage nodes
• Partial power-down scenarios in embedded systems where specific subsystems remain powered while others are off

Translators, Level Shifters Procurement Notes

Verify the complete part number including the G4 suffix to confirm RoHS compliance and green manufacturing status. Ensure the DBVR package variant matches the required SC-70 footprint and tape-and-reel specifications for automated assembly processes. Cross-reference the manufacturer datasheet for specific handling and storage requirements related to moisture sensitivity classification.

Translators, Level Shifters Selection Notes

Select this component when designing circuits that require bidirectional translation between low-voltage digital domains ranging from 1.2V to 3.6V. The device is suitable for applications needing a single-channel solution with independent supply rail configuration. Consider the SC-70 package size for space-constrained designs. Verify that the asynchronous direction control mechanism aligns with the system's timing requirements for bus arbitration.

Translators, Level Shifters Part Context

This component belongs to the Texas Instruments SN74AVC1T45 family of voltage-level translators. The family shares core functionality but varies in packaging options such as DCKR and DRLR. The DBVRG4 designation specifically identifies the SC-70 surface-mount package with lead-free, halogen-free construction. It serves as a compact alternative to multi-channel bus transceivers for simple point-to-point level shifting applications.

Translators, Level Shifters Replacement Considerations

SN74AVC1T45DCKRG4: Same functional specification in SC-70 package variant. SN74AVC1T45DBVRE4: Equivalent function in SOT-23-6 package. SN74AVC1T45DRLRG4: Equivalent function in SOT-563 package.