SN74CBTS16211DL

Overview

The SN74CBTS16211DL is a 24-bit FET bus switch from Texas Instruments, housed in a 56-pin SSOP (DL) package. It operates on a single supply voltage ranging from 4V to 5.5V and supports an operating temperature range of -40°C to 85°C. The device provides high-speed TTL-compatible bus switching with Schottky diodes on the I/Os to clamp undershoot. It can function as a dual 12-bit bus switch or a single 24-bit bus switch, controlled by two independent output enable inputs.

Feature Summary

• Integrates Schottky diodes on input/output terminals to effectively clamp signal undershoot events.
• Features low on-state resistance for minimal propagation delay during data transmission.
• Supports flexible configuration as either a dual 12-bit or single 24-bit bus switch architecture.

Applications

• High-speed digital bus switching applications requiring TTL compatibility
• Portable equipment utilizing low-voltage power supplies
• Computer and consumer electronics systems

Procurement Notes

Verify the specific DL package designation corresponds to the SSOP form factor when sourcing. Confirm that the component meets RoHS compliance standards required for your assembly process. Ensure control inputs are tied to VCC or GND if unused to maintain proper device operation. Check for any obsolescence notices regarding this specific part number variant.

Selection Notes

Select this component for designs requiring 24-bit parallel data path switching with robust ESD protection characteristics. The SSOP package is suitable for space-constrained PCB layouts where surface mount technology is preferred. Consider the 4V to 5.5V supply range to ensure compatibility with existing system power rails without additional level shifting.

Part Context

This device belongs to Texas Instruments' Widebus family of logic switches. It is designed to replace older bipolar bus switch technologies by offering lower power consumption and faster switching speeds. The SN74CBTS16211 series is widely used in legacy and modern digital interfaces where reliable bidirectional data transfer is critical.

Replacement Considerations

SN74CBTS16211DGGR (TSSOP package)

FAQ

How does the SN74CBTS16211 handle signal undershoot?

The device incorporates Schottky diodes on all I/O pins to clamp undershoot voltages, protecting the internal circuitry and ensuring signal integrity.

What is the maximum supply voltage for this component?

The recommended operating conditions specify a maximum supply voltage (VCC) of 5.5V.