SN74CBT3244RGYR

Overview

The SN74CBT3244RGYR is an octal FET bus switch manufactured by Texas Instruments. It operates within a voltage range of 2.0 V to 3.6 V and supports bidirectional data transmission. The device features low on-resistance and is housed in a 20-pin VQFN package with dimensions of 4.5 mm length. It functions as a TTL-compatible bus driver with enable-low control logic. The component is rated for an operating temperature range from -40°C to +85°C and has a load capacitance specification of 50 pF.

Feature Summary

• Octal configuration providing eight independent bidirectional switching channels
• Low on-resistance design optimized for high-bandwidth signal integrity
• Compatible with standard TTL logic levels for control interface

Applications

• Portable equipment requiring low-voltage signal routing
• Consumer electronics utilizing high-speed data buses
• Computing systems needing efficient bus isolation

Procurement Notes

Verify the specific ordering suffix to confirm package type and tape-and-reel specifications. Ensure compatibility with the target system's voltage domain, as the device supports 2.0 V to 3.6 V operation. Confirm RoHS compliance status and moisture sensitivity level requirements for the intended manufacturing process. Cross-reference the datasheet for exact pinout configurations to prevent layout errors during PCB design implementation.

Selection Notes

Select this component when an octal bus switch is required for low-voltage applications. The 20-VQFN package suits space-constrained designs. Consider the 50 pF load capacitance for high-frequency signal integrity needs. Verify that the enable-active-low control logic aligns with the system's control architecture before finalizing the bill of materials.

Part Context

This part belongs to the Texas Instruments CBT series of bus switches. The series focuses on low-voltage, high-speed switching solutions for portable and consumer electronics. The RGYR suffix indicates a specific reel packaging format within the VQFN family. This component serves as a digital interconnect solution for managing multiple data lines simultaneously.

Replacement Considerations

Check for direct pin-to-pin replacements within the same CBT series family. Verify that alternative parts match the 20-VQFN footprint and electrical characteristics. Ensure any substitute maintains the 2.0 V to 3.6 V operating range and bidirectional functionality.