SN74CB3T16212DGGR

Overview

The SN74CB3T16212DGGR is a 24-bit FET bus-exchange switch from the Texas Instruments Widebus family, housed in a 56-pin TSSOP package. It operates on a single supply voltage ranging from 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 select inputs. Key electrical characteristics include a typical ON-state resistance of 5 Ω, a maximum propagation delay of 0.25 ns, and an input/output capacitance of 9 pF when off. It features low power consumption with a maximum supply current of 70 μA.

Feature Summary

• Supports mixed-mode signal operation with voltage translation that tracks VCC
• Provides bidirectional data exchange between four signal ports via three select inputs
• Features 5-V-tolerant I/Os compatible with powered-up or powered-down states
• Includes undershoot clamp diodes on data and control inputs

Applications

• Level translation between different logic families
• PCI interface connections
• USB interface applications
• Memory interleaving systems
• Bus isolation circuits

Procurement Notes

Verify the specific ordering suffix matches the required package type and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level ratings for your assembly process. Ensure the operating temperature range aligns with your system requirements. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and production status before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring high-speed data exchange between multiple buses with varying voltage levels. The device is suitable for portable equipment due to its low power consumption and small form factor. Consider the 56-pin TSSOP package constraints and ensure adequate thermal management if operating near maximum current limits. Verify that control inputs are properly biased to maintain the desired high-impedance state during power transitions.

Part Context

This device belongs to the SN74CB3T1621x series of widebus switches designed for low-voltage applications. It complements other Texas Instruments logic products by offering robust signal integrity and minimal loading effects. The Widebus family allows designers to manage complex data paths efficiently while maintaining compatibility with standard TTL and CMOS signaling standards across various industrial and consumer electronics platforms.

Replacement Considerations

SN74CB3T16212DGVR serves as a direct alternative within the same package family.