74AVCA164245ZQLR

Overview

The SN74AVCA164245ZQLR is a 16-bit dual-supply bus transceiver from the Texas Instruments AVCA series. It facilitates voltage level translation between two independent power domains, supporting A-side supplies from 1.0V to 3.6V and B-side supplies from 2.3V to 3.6V. The device operates at data rates up to 400 Mb/s with a propagation delay of 2.4 ns. It features three-state outputs and is housed in a 56-pin Microstar Junior (7x4.5) BGA package. The component functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual-supply architecture enabling direct voltage translation between low-voltage and higher-voltage logic domains without external level-shifting components.
• High-speed signal integrity maintained through optimized internal circuitry designed for data rates up to 400 Mb/s.
• Three-state output configuration allows connection to multiple buses or shared transmission lines while minimizing loading effects.

Applications

• Voltage level translation between 1.2V/1.5V/1.8V/2.5V and 3.3V systems
• High-speed bidirectional data transfer on memory buses
• Interface bridging in portable electronic devices requiring mixed voltage operation

Procurement Notes

Verify the specific suffix ZQLR against the manufacturer's current datasheet to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status and lead-free material declarations as required by your assembly process. Check for any recent Product Change Notifications (PCNs) regarding mold compound or carrier tape changes that may affect handling or storage conditions.

Selection Notes

Select this component when interfacing circuits with significantly different supply voltages, such as translating from 1.2V logic to 3.3V buses. Ensure the target application requires bidirectional data flow and can accommodate the 56-pin BGA footprint. Verify that the system's maximum data rate requirements do not exceed the specified 400 Mb/s limit under the intended load conditions.

Part Context

This part belongs to the SN74AVCA164245 family of 16-bit bus transceivers. It shares functional similarities with other AVCA series devices but is distinguished by its specific dual-supply voltage ranges and high-speed performance characteristics. The ZQLR suffix denotes the specific 56-pin Microstar Junior package variant used for compact surface-mount applications.

Replacement Considerations

SN74AVCA164245GRG4: TSSOP-48 package, same electrical specifications. SN74AVCA164245GR: TSSOP-48 package, same electrical specifications. SN74AVCAH164245VR: TVSOP-48 package, similar performance but different package type.