74LVCH8T245DBQRG4

Overview

The SN74LVCH8T245DBQRG4 is an 8-bit dual-supply bus transceiver manufactured by Texas Instruments. It features configurable voltage translation between two independent VCCB power domains, supporting operation from 1.65V to 3.6V on Port A and 1.65V to 5.5V on Port B. The device provides three-state outputs and operates within a temperature range of -40°C to 85°C. It is housed in a 24-pin SSOP package.

Feature Summary

• Configurable voltage translation allows seamless interfacing between different logic families with varying supply voltages.
• Dual-supply architecture supports independent power domains for Port A and Port B.
• Three-state outputs facilitate connection to multiple buses without signal contention.

Applications

• Mobile applications requiring low-voltage operation
• System memory and flash memory interfaces
• High-density data buses connecting microprocessors to peripherals

Procurement Notes

Verify the RoHS compliance status and specific tape-and-reel packaging details against the manufacturer's latest documentation before ordering. Confirm that the lead time and availability align with production schedules, as these factors are subject to change based on manufacturing capacity and regional distribution channels.

Selection Notes

Select this component when bidirectional level shifting is required between 1.65V and 5.5V logic systems. Ensure the application demands high impedance states for bus sharing. Consider the SSOP package constraints regarding thermal dissipation and board space compared to QFN alternatives if higher pin density or better heat sinking is needed.

Part Context

This part belongs to the SN74LVCH8T245 family of bus transceivers designed for low-voltage CMOS technology. It serves as a bridge for data transfer across voltage boundaries in portable and battery-operated devices. The 'G4' suffix typically indicates Green/RoHS-compliant manufacturing, distinguishing it from older non-compliant variants within the same functional series.

Replacement Considerations

SN74LVCH8T245DGVR: Pin-compatible alternative in TVSOP-24 package. SN74LVC8T245DGVR: Similar functionality but may differ in specific electrical characteristics or voltage ranges; verify datasheet compatibility.