SN74CBT16861DGVR

Overview

The SN74CBT16861DGVR is a 20-bit FET bus switch from Texas Instruments, organized as two independent 10-bit switches. It operates within a supply voltage range of 4 V to 5.5 V and supports an operating temperature range of -40°C to +85°C. The device features TTL-compatible input levels and latch-up performance exceeding 100 mA per JESD 78 Class II. Electrical characteristics include a maximum on-state resistance of 22 Ohms at 4 V and a typical propagation delay of 0.25 ns at 5 V.

Feature Summary

• Provides high-speed bus switching with low on-state resistance for minimal signal propagation delay.
• Features TTL-compatible input levels allowing direct interfacing with standard logic families.
• Includes separate output-enable inputs to control connection states between Port A and Port B.

Applications

• High-speed data routing in digital systems
• Bus expansion architectures requiring bidirectional switching
• Portable equipment utilizing single-supply operation

Procurement Notes

Verify the specific ordering suffix 'DGVR' corresponds to the TVSOP-48 package and tape-and-reel carrier format. Confirm that the component meets RoHS compliance standards and matches the required moisture sensitivity level for your assembly process. Ensure the lead finish aligns with your soldering requirements before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring 20 bits of simultaneous switching capability within a compact surface-mount footprint. It is suitable for applications demanding low power consumption and fast switching speeds under a single 5 V supply. Consider the TVSOP-48 package constraints regarding thermal dissipation and PCB layout space during the design phase.

Part Context

This device belongs to the SN74CBT16861 family, part of Texas Instruments' Widebus family of bus switches. It serves as a high-density solution for managing multiple data lines simultaneously. The DGVR variant specifically denotes the plastic small-outline thin very thin package configuration optimized for automated surface-mount assembly processes.

Replacement Considerations

Public confirmed substitute part numbers: SN74CBT16210CDGVR, SN74CBT16210DGVR, SN74CBTD16210DGVR.