SN74CBTLV3245APWR

Overview

The SN74CBTLV3245APWR is an octal bus switch manufactured by Texas Instruments, designed for low-voltage applications. It operates within a supply voltage range of 2.3 V to 3.6 V and features eight bidirectional data channels in a single configuration. The device utilizes a TSSOP-20 surface-mount package with 20 pins. Key electrical specifications include a maximum on-resistance of 7 ohms and a maximum propagation delay of 250 ps. It supports a maximum power supply current of 20 uA and functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides eight bidirectional data paths for efficient signal routing between system buses.
• Optimized for low-voltage operation, supporting supply voltages down to 2.3 V.
• Features low on-resistance to minimize signal attenuation and power loss during transmission.
• Ensures high-speed data transfer capabilities with minimal propagation delay.

Applications

• Portable consumer electronics requiring low-power signal switching
• Battery-operated devices utilizing low-voltage logic levels
• Mobile communication equipment needing compact bus management solutions

Procurement Notes

Verify the specific suffix 'PWR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 2.3 V to 3.6 V operating voltage aligns with the target system's power rails. Ensure the TSSOP-20 footprint matches the printed circuit board layout constraints. Check for RoHS compliance status if environmental regulations apply to the final product deployment.

Selection Notes

Select this component when designing systems that require bidirectional data switching at low voltages below standard 5 V logic levels. The low on-resistance makes it suitable for maintaining signal integrity in high-density layouts. Consider the TSSOP-20 package size for space-constrained designs. Evaluate the 250 ps propagation delay against the system's timing requirements to ensure adequate performance margins.

Part Context

This part belongs to the SN74CBTLV3245A series of octal bus switches from Texas Instruments. It is engineered specifically for low-voltage environments, distinguishing it from higher-voltage counterparts like the standard CB3T series. The device serves as a critical interface component for managing data flow between different voltage domains or subsystems in modern electronic architectures.

FAQ

Is the SN74CBTLV3245APWR capable of level shifting between 1.8 V and 3.3 V?

Yes, the device supports bidirectional data transmission and can operate effectively between different low-voltage levels within its specified 2.3 V to 3.6 V supply range.

What is the maximum propagation delay for this bus switch?

The maximum propagation delay is specified as 250 ps, ensuring fast switching speeds for data bus applications.