SN74CBTD3384CDGVR

Overview

The SN74CBTD3384CDGVR is a high-speed TTL-compatible FET bus switch manufactured by Texas Instruments. It features low ON-state resistance and bidirectional data flow with near-zero propagation delay. The device includes an integrated diode to VCC for level shifting from 5-V inputs down to 3.3-V outputs. It supports partial-power-down applications via Ioff, ensuring no backflow current when powered down. The component operates within a supply voltage range of 4.5 V to 5.5 V and functions across temperatures from -40°C to +85°C.

Feature Summary

• Integrated diode to VCC provides level shifting for 5-V input down to 3.3-V output levels
• Active undershoot-protection circuitry on A and B ports protects against undershoot up to -2 V
• Ioff feature ensures damaging current does not backflow through the device during partial-power-down mode
• Bidirectional data flow with low ON-state resistance allows for minimal propagation delay

Applications

• Memory interleaving
• Bus isolation
• Low-distortion signal gating
• Digital and analog applications requiring level shifting

Procurement Notes

Verify the specific ordering suffix 'DGV' corresponds to the TVSOP-24 package configuration required for your design. Confirm that the RoHS compliance status and lead finish match your assembly specifications. Ensure the operating temperature range of -40°C to +85°C aligns with your environmental requirements. Check for any recent product change notices or lifecycle status updates directly from the manufacturer before finalizing procurement.

Selection Notes

Select this component when a high-speed bus switch with integrated level-shifting capability is required. It is suitable for systems needing to interface 5-V logic with 3.3-V logic without external components. Consider the TVSOP-24 package if space constraints favor a thin profile over standard SOIC or SSOP options. Ensure control inputs are driven by compatible TTL or CMOS outputs to maintain proper switching functionality.

Part Context

This part belongs to the SN74CBTD3384C series of digital bus switches. It is designed as two independent 5-bit bus switches that can also function as a single 10-bit switch. The series is characterized by low power consumption and high speed, making it appropriate for portable and battery-operated devices where power efficiency and signal integrity are critical.

Replacement Considerations

SN74CBTD3384CDGVRG4 is a verified equivalent part number offering identical electrical characteristics and pinout compatibility.