SN74CB3T16212DGVR

Overview

The SN74CB3T16212DGVR is a 24-bit FET bus-exchange switch from the Texas Instruments Widebus family, housed in a 56-pin TVSOP (DGV) package. It operates within a supply voltage range of 2.3 V to 3.6 V and supports mixed-mode signal operation with 5-V-tolerant I/Os. The device provides bidirectional data flow between four ports controlled by S0, S1, and S2 inputs. Key electrical characteristics include a typical ON-state resistance of 5 Ω and low input/output capacitance of 9 pF. Propagation delay is typically 0.15 ns at 2.5 V and 0.25 ns at 3.3 V.

Feature Summary

• Supports mixed-mode signal operation on all data I/O ports with output voltage translation that tracks VCC
• Provides bidirectional data flow with near-zero propagation delay for high-speed applications
• Features 5-V-tolerant I/Os that remain tolerant when the device is powered up or powered down
• Includes Ioff support to ensure partial-power-down mode operation without damaging backflow current

Applications

• Level translation between different voltage domains
• PCI interface connections
• USB interface implementations
• Memory interleaving systems
• Bus isolation circuits

Procurement Notes

Verify the specific ordering suffix 'DGVR' corresponds to the TVSOP-56 tape and reel packaging configuration. Confirm the active status of the component for new designs. Ensure compatibility with RoHS standards and check for any recent product change notifications regarding package materials or assembly processes before finalizing procurement.

Selection Notes

Select this component when designing systems requiring 24-bit wide data paths with exchange capabilities between multiple ports. It is suitable for environments needing 5-V tolerance alongside lower voltage logic levels. Consider its low power consumption and high ESD protection ratings for portable equipment applications where space efficiency and reliability are critical design constraints.

Part Context

This part belongs to the SN74CB3T16212 series, which includes variants like the DGGR (TSSOP) and GQLR/ZQLR (VFBGA). It is part of the Widebus family designed for high-density bus switching. The device functions as both a 24-bit bus switch and a 12-bit bus exchange, offering flexible routing options through three select inputs.

Replacement Considerations

SN74CB3T16212DGGR