74CB3T3383DBQRE4

Signal Switches, Multiplexers, Decoders Overview

The SN74CB3T3383 is a high-speed TTL-compatible FET bus-exchange switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. The SN74CB3T3383 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels. It is organized as a 10-bit bus switch or as a 5-bit bus-exchange with enable (BE) input.

Signal Switches, Multiplexers, Decoders Feature Summary

• Supports mixed-mode signal operation on all data I/O ports
• Provides voltage translation that tracks VCC
• Features bidirectional data flow with near-zero propagation delay
• Includes undershoot clamp diodes on data and control inputs

Signal Switches, Multiplexers, Decoders Applications

• Level Translation
• Memory Interleaving
• Bus Isolation

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the exact ordering suffix to confirm package type and reel specifications. Ensure the selected variant matches the required operating temperature range of -40°C to 85°C. Confirm RoHS compliance status based on the specific part marking and manufacturer documentation before finalizing procurement orders.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when designing circuits requiring simultaneous support for 5-V, 3.3-V, and 2.5-V signaling standards. The device is suitable for applications needing flexible bus exchange capabilities controlled by BE and BX inputs. Consider its low power consumption and high ESD performance for portable equipment designs.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the Texas Instruments CB3T series of bus switches. It is designed for high-speed digital applications where low insertion loss and precise signal integrity are critical. The device integrates multiple independent FET switches into a single compact package for efficient board space utilization.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74CB3T3383DBQR

Signal Switches, Multiplexers, Decoders FAQ

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

The device features an Ioff function that ensures damaging current will not backflow through the device when it is powered down, providing isolation during power off.

What is the function of the BE and BX inputs?

When used as a 5-bit bus-exchange, the BE input enables the switch, while the BX select input controls the data path between the A and B ports.