SN74CB3Q16211DL

Overview

The SN74CB3Q16211DL is a 56-pin SSOP digital bus switch from the Widebus family. It operates on a single supply voltage ranging from 2.3 V to 3.6 V and supports data I/O levels from 0 V to 5 V. The device integrates two independent 12-bit FET bus switches, providing bidirectional data flow with near-zero propagation delay. It features low ON-state resistance of 5 Ω typical and utilizes internal charge pump circuitry for rail-to-rail switching capabilities.

Feature Summary

• High-bandwidth data path supporting up to 500 MHz
• Bidirectional data flow with minimal signal distortion
• Partial-power-down mode support via Ioff circuitry
• Robust latch-up performance exceeding 100 mA

Applications

• PCI interface systems
• Differential signal interfaces
• Memory interleaving circuits
• Bus isolation applications
• Low-distortion signal gating

Procurement Notes

Verify that the specific DL suffix corresponds to the 56-pin Shrink Small Outline Package (SSOP). Confirm the package body dimensions match the required board layout constraints. Ensure the ordering information aligns with the current Texas Instruments product folder to validate active production status and material compliance specifications.

Selection Notes

Select this component when designing broadband communications or networking systems requiring high-speed signal routing. The device is suitable for data-intensive computing environments where low capacitive loading is critical. Verify that control inputs are compatible with TTL or 5-V/3.3-V CMOS logic levels for proper enablement.

Part Context

This part belongs to the SN74CB3Q16211 series, which includes variants in TSSOP, TVSOP, and Microstar Junior BGA packages. The DL designation specifically identifies the SSOP package option within the Widebus family of low-voltage FET bus switches designed for high-performance signal switching applications.

Replacement Considerations

SN74CB3Q16211DGGR

FAQ

How does the device handle partial-power-down conditions?

The device incorporates dedicated Ioff circuitry that prevents damaging current backflow through the data ports when the VCC supply is powered down.

What is the maximum switching frequency for the control input?

The maximum switching frequency for the OE control input is specified as 20 MHz under recommended operating conditions.