SN74AVCAH164245VR

Translators, Level Shifters Overview

The SN74AVCAH164245VR is a 16-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs. It operates within a supply voltage range of 1.4 V to 3.6 V for both ports. The device features DOC circuitry that dynamically adjusts output impedance, providing noise reduction without speed degradation. Propagation delay ranges from 1.4 ns to 8.6 ns depending on voltage conditions. It supports partial-power-down mode via Ioff circuitry and includes active bus-hold on data inputs.

Translators, Level Shifters Feature Summary

• DOC circuitry dynamically changes output impedance to reduce noise without degrading speed
• Active bus-hold eliminates the need for external pullup or pulldown resistors
• Ioff circuitry supports partial-power-down mode operation by disabling outputs
• Control input levels are referenced to VCCA voltage

Translators, Level Shifters Applications

• Asynchronous communication between data buses
• Mixed-voltage-mode data communications
• Universal low-voltage bidirectional translation between 1.5-V, 1.8-V, 2.5-V, and 3.3-V nodes

Translators, Level Shifters Procurement Notes

Verify the package marking WAH4245 matches the SN74AVCAH164245VR designation. Confirm the TVSOP-48 (DGV) physical dimensions against the mechanical drawing. Ensure the ordering suffix VR corresponds to tape and reel packaging. Check RoHS compliance status in the latest Package Option Addendum.

Translators, Level Shifters Selection Notes

Select this component when asynchronous bidirectional translation is required between different low-voltage logic families. The dual-rail design allows independent configuration of Port A and Port B supplies. Use the DIR and OE pins to control data flow direction and bus isolation. Ensure operating temperatures remain within the -40 °C to +85 °C range.

Translators, Level Shifters Part Context

This device belongs to the Texas Instruments Widebus family. It is designed specifically for noninverting bus transceiver applications requiring flexible voltage level shifting. The architecture supports two separate configurable power-supply rails, enabling universal compatibility across various low-voltage standards.

Translators, Level Shifters Replacement Considerations

SN74AVCAH164245GR is a pin-compatible alternative available in TSSOP-48 packaging.