SN74CB3T3384PWRG4

Overview

The SN74CB3T3384PWRG4 is an octal bus switch manufactured by Texas Instruments, designed for high-speed data transmission applications. It features a low on-resistance of 7 ohms maximum and a propagation delay of 250 picoseconds maximum. The device operates within a supply voltage range of 4.5 V to 5.5 V, with a typical operating voltage of 5 V. It supports a maximum power supply current of 1.5 mA and functions reliably across an extended temperature range from -40°C to +85°C. Packaged in a TSSOP-24 surface-mount format, this component provides efficient signal routing for digital systems requiring robust switching capabilities.

Feature Summary

• Octal configuration providing eight independent bidirectional channels for simultaneous data path management
• Low on-resistance characteristic ensures minimal signal attenuation and power loss during conduction
• High-speed performance capability supports rapid signal transitions with controlled propagation delays
• Power-down protection feature prevents unintended current flow through the switch when the device is unpowered

Applications

• Portable equipment requiring efficient power management and signal isolation
• Consumer electronics utilizing high-density data buses
• Computing platforms needing reliable peripheral interface switching
• Telecommunications infrastructure components requiring stable signal routing

Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and green manufacturing status as per Texas Instruments documentation. Confirm the TSSOP-24 package dimensions match your PCB footprint requirements precisely. Ensure the operating environment stays within the specified -40°C to +85°C thermal limits to maintain guaranteed electrical parameters. Check for any recent product lifecycle notices regarding availability or recommended replacements for long-term production planning.

Selection Notes

Select this component when designing systems that require multiple parallel data lines to be switched efficiently under a 5V logic standard. The octal architecture reduces board space compared to using individual single-channel switches. Consider the 7-ohm on-resistance for signal integrity calculations in high-frequency applications. Verify that the input voltage levels are compatible with the 5V supply rail to ensure proper switching thresholds are met during operation.

Part Context

This part belongs to the SN74CBT series of bus switches, which are optimized for low-voltage and high-speed applications. The CBTD variant typically denotes specific drive strength or packaging differences within the broader family. Texas Instruments utilizes this numbering scheme to distinguish between various pin configurations and electrical characteristics while maintaining compatibility with standard logic families. The PWRG4 designation specifically identifies the plastic small-world outline package with lead-free termination.

Replacement Considerations

Publicly confirmed substitute part numbers for SN74CB3T3384PWRG4 were not found in the provided source material.