SN74CBT16211ADL

Overview

The SN74CBT16211ADL is a discontinued 24-bit FET bus switch manufactured by Texas Instruments. It operates on a single power supply ranging from 4.5V to 5.5V and features an operating temperature range of -40°C to 85°C. The device is housed in a 56-TFSOP package with a width of 0.240 inches (6.10mm). It contains two independent circuits configured as 12 x 1:1 bus switches, designed for high-speed data transmission applications requiring low on-resistance and minimal signal distortion.

Feature Summary

• Provides 24-bit bidirectional data path switching capability through dual independent 12-bit channels.
• Utilizes FET technology to achieve low on-resistance for efficient signal transmission.
• Supports standard 5V logic systems within a specified voltage window.
• Designed for surface-mount installation in compact electronic assemblies.

Applications

• High-speed data bus routing in computer peripherals
• Signal isolation between different voltage domains in 5V logic systems
• Data line protection in industrial control interfaces

Procurement Notes

This specific part number is officially obsolete and no longer manufactured by Texas Instruments. Verification of current availability requires checking authorized distributors for surplus stock or identifying parameter-equivalent replacement components. Ensure that any substitute maintains the same pinout, voltage ratings, and package dimensions to guarantee compatibility with existing designs.

Selection Notes

Engineers should evaluate alternative devices from the 74CBT series that remain in active production. Key selection criteria include verifying the 56-pin TSSOP/TFSOP footprint compatibility and confirming that the replacement supports the required 4.5V to 5.5V operating range. Cross-referencing datasheets for propagation delay and on-resistance is essential to maintain system performance specifications.

Part Context

The SN74CBT16211ADL belongs to the Texas Instruments 74CBT family of bus switches. This series is characterized by its ability to handle multiple data lines simultaneously while maintaining signal integrity. The 'A' suffix typically denotes a specific manufacturing lot or revision, while 'DL' indicates the 56-TFSOP package type. These components are integral to managing complex digital interconnects in legacy and modern electronic systems.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the SN74CBT16211CDGGR and SN74CBTD16211DGGR. Both alternatives offer identical functional specifications and are currently available from Texas Instruments. Designers should verify that the package variant matches their PCB layout requirements before transitioning to these replacements.