SN74AVCH1T45DCKR

Translators, Level Shifters Overview

The SN74AVCH1T45DCKR is a single-bit dual-supply bus transceiver from the Texas Instruments 74AVCH series. It facilitates asynchronous communication between two data buses using independent configurable power rails for Port A and Port B. The device supports voltage translation ranges of 1.2 V to 3.6 V for both ports, enabling conversion between nodes such as 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. Key electrical parameters include a propagation delay of 5.6 ns, output currents of ±12 mA, and an operating temperature range of -40°C to +85°C. It features partial power-down capability (Ioff) and over-voltage tolerant inputs.

Translators, Level Shifters Feature Summary

• Supports bidirectional data transfer with configurable voltage translation between independent power rails
• Includes Ioff circuitry to disable outputs during partial power-down applications
• Features over-voltage tolerant inputs for robust signal integrity
• Provides three-state outputs controlled by a Direction (DIR) input

Translators, Level Shifters Applications

• Asynchronous communication between data buses operating at different voltage levels
• Low-voltage bidirectional level translation in portable and battery-powered devices
• Systems requiring partial power-down modes to minimize standby current
• Interfaces connecting logic families with varying supply voltages (e.g., 1.2V to 3.3V)

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'DCKR' corresponds to the SC-70-6 package and tape-and-reel shipping configuration. Confirm RoHS compliance status and manufacturing origin if required for your assembly process. Ensure the DIR pin is driven by VCCA to maintain proper direction control functionality. Check for any recent Product Change Notifications (PCNs) regarding marking or assembly site changes before finalizing procurement.

Translators, Level Shifters Selection Notes

Select this component when a single-channel bidirectional translator is needed with low propagation delay and wide voltage compatibility. The SC-70-6 package offers a compact footprint suitable for space-constrained designs. Consider the 1.2 V minimum supply requirement for Port A and B when designing power rails. This device is appropriate for applications requiring high noise immunity and flexible voltage translation without external components.

Translators, Level Shifters Part Context

This part belongs to the Texas Instruments 74AVCH series of single-bit dual-supply bus transceivers. It shares functional similarities with the SN74AVC1T45 but may offer enhanced performance characteristics typical of the AVCH family. The device is designed to replace older translation solutions by providing integrated level shifting and direction control in a minimal footprint. It complements other logic ICs in mixed-voltage system architectures.

Translators, Level Shifters Replacement Considerations

SN74AVC1T45DCKR: Pin-compatible alternative within the same manufacturer's portfolio with similar functionality.