74ALVC164245DLRG4

Overview

The SN74ALVC164245DLRG4 is a 16-bit dual-supply level-shifting transceiver from the ALVC logic family, manufactured by Texas Instruments. It features two independent bidirectional circuits with 3-state outputs, housed in a 48-pin SSOP package. The device supports voltage translation between A and B ports, where VCCA operates within 2.3 V to 3.6 V and VCCB operates within 3 V to 5.5 V. Key electrical parameters include a maximum propagation delay of 5.8 ns at 5 V with 50 pF load, and output drive capabilities of ±24 mA. It functions as a non-inverting bus transceiver compatible with LVTTL input and output levels.

Feature Summary

• Supports bidirectional data transfer between buses operating at different voltage levels
• Features independent dual power supply rails for flexible voltage configuration
• Provides 3-state outputs to prevent bus contention during high-impedance states

Applications

• Voltage level shifting between 2.5-V or 3.3-V systems and 3.3-V or 5-V systems
• High-speed data bus interfaces requiring asynchronous communication
• Portable equipment utilizing multiple power domains

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the package type is SSOP-48 and ensure the ordering part number matches the exact functional specification required for your design. Cross-reference with official Texas Instruments datasheets to validate pinout and electrical characteristics before finalizing procurement.

Selection Notes

Select this component when interfacing 16-bit wide buses between mixed-voltage domains, specifically translating between 2.5-V/3.3-V and 3.3-V/5-V supplies. Ensure the application requires bidirectional flow and 3-state control. Verify that the SSOP-48 package fits the PCB layout constraints and that the operating temperature range of -40°C to +85°C meets environmental requirements.

Part Context

This device belongs to the SN74ALVC164245 series, which includes variants such as the DLR (SSOP) and GRDR (BGA). The DL variant is a standard commercial-grade component. Other manufacturers produce similar parts like the Nexperia 74ALVC164245DGG-QJ for automotive applications, but the TI version is distinct in its specific packaging and commercial qualification.

Replacement Considerations

The onsemi 74VCX164245MTDX is listed as a similar alternative. Verify compatibility regarding voltage ranges, package dimensions, and electrical performance specifications before substitution.