SN74CBT3125CDR

Overview

The SN74CBT3125CDR is a quadruple bus switch manufactured by Texas Instruments, designed for high-speed digital signal routing. It operates within a supply voltage range of 2.7 V to 3.6 V and features low on-resistance with minimal variation across channels. The device provides four independent switches in a 14-pin SOIC package, supporting bidirectional data flow with active pull-up resistors to ensure defined logic states when the switch is off.

Feature Summary

• Quadruple configuration providing four independent single-pole single-throw (SPST) switches
• Low on-resistance with tight matching between channels for consistent signal integrity
• Active pull-up devices maintain stable output levels during disabled states
• Supports bidirectional data transmission without direction control pins

Applications

• Portable equipment requiring efficient power management and signal switching
• Consumer electronics utilizing low-voltage digital buses
• Communication systems needing high-speed data path selection
• Industrial control modules interfacing various peripheral devices

Procurement Notes

Verify the specific suffix 'CDR' corresponds to the SOIC-14 package and tape-and-reel shipping format. Confirm RoHS compliance status and manufacturing date codes against current inventory records. Ensure the operating temperature range meets system requirements before finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require multiple isolated signal paths under low-voltage conditions. Consider the package thermal characteristics and pinout compatibility with existing PCB layouts. Evaluate the propagation delay specifications against the maximum clock speeds required by the target application interface.

Part Context

This part belongs to the SN74CBT3125 family of bus switches, which are optimized for low-power applications. The series offers improved performance over standard logic families by reducing capacitance and resistance. It serves as a critical interconnect solution in modern electronic designs where space and energy efficiency are paramount constraints.

Replacement Considerations

Check for direct equivalents such as the SN74CBT3125CDRG4 or other variants within the same functional family. Verify pin-to-pin compatibility and electrical parameter alignment before substituting. Ensure any alternative maintains the same voltage tolerance and switching speed characteristics.