SN74CBT16211CDGVR

Overview

The SN74CBT16211CDGVR is a high-speed TTL-compatible FET bus switch manufactured by Texas Instruments. It features a 12-bit configuration with 1:1 SPST circuit topology, housed in a 56-TVSOP surface-mount package. The device operates on a single power supply ranging from 4.5V to 5.5V and supports an operating temperature range of -40°C to 85°C. Key electrical specifications include a maximum on-resistance of 12 Ohms and a maximum propagation delay of 250 ps. It provides 200 MHz bandwidth and includes powered-off protection along with -2V undershoot protection capabilities.

Feature Summary

• High-speed signal switching with low on-state resistance for efficient data transmission
• Integrated powered-off protection prevents leakage current when the device is unpowered
• -2V undershoot protection ensures reliable operation during voltage transients
• TTL-compatible interface allows direct connection to standard logic systems

Applications

• High-speed data bus switching applications
• Portable equipment requiring low power consumption
• Consumer electronics utilizing 5V logic interfaces
• Computing products requiring fast signal routing

Procurement Notes

Verify the specific suffix DGVR corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the CDGVR variant meets the thermal and electrical requirements for the intended operating environment. Ensure compatibility with existing PCB footprints designed for the 56-TVSOP package dimensions. Check for RoHS3 compliance status if environmental regulations apply to the final product manufacturing.

Selection Notes

Select this component when a 12-bit bidirectional bus switch is needed with tight propagation delay constraints. The TVSOP package offers a compact solution for space-constrained designs compared to larger TSSOP variants. Consider the 12 Ohm on-resistance limit when calculating signal integrity and voltage drop across the switch. The -2V undershoot tolerance makes it suitable for systems experiencing momentary voltage dips below ground potential.

Part Context

This part belongs to the SN74CBT16211 family of high-speed bus switches. It serves as a functional equivalent to the SN74CBT16211ADGGR, which has been discontinued. The device is distinct from the SN74CBTD16211DGGR due to differences in drive strength and internal architecture. It shares the same logical function as the SN74CBT16211C but utilizes the specific DGVR package and reel configuration for mass production integration.

Replacement Considerations

The SN74CBT16211CDGGR is listed as a parameter-equivalent replacement option. Designers should verify pinout compatibility and electrical characteristics before substituting the DGVR package with the DGGR variant.