SN74CBTLV3245DW

Overview

The SN74CBTLV3245DW is a low-voltage octal FET bus switch manufactured by Texas Instruments. It provides eight bits of high-speed bus switching in a standard '245 device pinout within a 20-pin SOIC (DW) package. The device operates with a supply voltage range of 2.3 V to 3.6 V and supports an operating temperature range from -40°C to +85°C. Key electrical parameters include a maximum on-state resistance of 7 ohms at VCC = 3 V, a typical propagation delay of 0.25 ns at VCC = 3.3 V, and a maximum quiescent current of 20 μA.

Feature Summary

• Provides eight bits of high-speed bidirectional bus switching in a standard '245 pinout configuration.
• Features low on-state resistance for minimal signal propagation delay between ports.
• Ensures isolation under power-off conditions to prevent interference during system power cycles.

Applications

• High-speed data bus routing applications requiring low latency.
• Portable equipment utilizing low-voltage power supplies.
• Consumer electronics requiring efficient signal path management.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm package type and environmental compliance. Ensure that the selected variant matches the required thermal impedance and lead-free specifications for your assembly process. Cross-reference the datasheet revision date to validate all electrical characteristics before finalizing component selection.

Selection Notes

Select this component when a standard '245 pinout is required for low-voltage systems. The DW package offers a suitable footprint for surface-mount designs. Consider the 7-ohm on-resistance limit and 0.25-nanosecond propagation delay for high-frequency signal integrity requirements.

Part Context

This part belongs to the SN74CBTLV3245 family of low-voltage octal FET bus switches. It shares functional similarities with other devices in the series but differs in packaging options such as DB, DGV, and PW. The DW designation specifically identifies the shrink small-outline package variant used in this product line.

Replacement Considerations

Check for variants with different suffixes like G4 or E4 which may indicate lead-free or RoHS-compliant versions. Verify pin compatibility if substituting with other '245-type bus switches from different manufacturers.