SN74CBT3245ADWG4

Overview

The SN74CBT3245ADWG4 is an octal FET bus switch manufactured by Texas Instruments. It provides eight bits of high-speed TTL-compatible bus switching within a single 20-pin SOIC package. The device operates with a supply voltage range of 4 V to 5.5 V and supports bidirectional data transfer between Port A and Port B. It features a low on-state resistance, ensuring minimal propagation delay during signal transmission. The component includes an output-enable (OE) input that controls the connection state, allowing for high-impedance disconnection when required.

Feature Summary

• Provides eight bits of high-speed TTL-compatible bus switching
• Features low on-state resistance for minimal propagation delay
• Supports bidirectional data transfer between two ports
• Includes an output-enable input for controlling connection states

Applications

• High-speed data bus switching applications
• Bidirectional level translation circuits
• Portable equipment requiring low power consumption
• Consumer electronics utilizing standard logic interfaces

Procurement Notes

Verify the specific ordering suffix 'G4' corresponds to lead-free and RoHS-compliant specifications as defined in the manufacturer's documentation. Confirm the package type matches the required PCB footprint, specifically the 20-pin Small Outline Integrated Circuit (SOIC) dimensions. Ensure compatibility with the intended operating temperature range of -40°C to 85°C for the application environment.

Selection Notes

Select this component when an octal bus switch with TTL-compatible inputs is required for 5 V systems. Consider the low on-state resistance and propagation delay characteristics for high-speed data paths. Evaluate the 20-pin SOIC package constraints against available board space. Verify that the supply voltage requirements align with the 4 V to 5.5 V operational range specified for reliable performance.

Part Context

This part belongs to the SN74CBT3245A family of octal FET bus switches from Texas Instruments. The family offers various package options including SOIC, SSOP, TSSOP, and TVSOP configurations. These devices are designed to replace traditional transistor-based switching solutions, providing improved speed and lower power consumption while maintaining standard pinouts compatible with legacy designs.

Replacement Considerations

Direct replacements include other variants within the SN74CBT3245A series such as SN74CBT3245ADW or SN74CBT3245APW, provided the package type matches the design requirements. Cross-reference electrical parameters like on-resistance and propagation delay to ensure functional equivalence in the specific circuit application.