SN74CBTU4411ZSTR

Overview

The SN74CBTU4411ZSTR is an 11-bit, 4-to-1 multiplexer or demultiplexer manufactured by Texas Instruments. It operates with a supply voltage range of 1.8 V to 2.5 V and utilizes a 72-pin NFBGA package measuring 7x7 mm. The device supports SSTL_18 signaling levels and is designed for DDR-II applications. D-port outputs are precharged using a bias voltage (VBIAS). It functions as a bus switch type integrated circuit suitable for high-speed data routing in digital systems.

Feature Summary

• Supports SSTL_18 signaling levels for compatibility with specific memory standards
• Suitable for DDR-II applications requiring low-voltage operation
• D-port outputs are precharged by a dedicated bias voltage

Applications

• DDR-II memory interface circuits
• High-speed data routing systems
• SSTL_18 compliant digital logic designs

Procurement Notes

Verify the exact package marking and date code against the manufacturer's latest datasheet before procurement. Ensure the supplier provides authentic components from authorized channels. Confirm that the 72-NFBGA footprint matches your PCB design requirements. Check for any specific handling instructions related to electrostatic discharge during assembly.

Selection Notes

Select this component when designing systems requiring 11-bit wide data paths with 4-to-1 switching capability at 1.8 V to 2.5 V. It is appropriate for DDR-II interfaces where SSTL_18 signaling is mandated. Consider the 72-NFBGA package size for space-constrained layouts. Ensure the application benefits from the precharged D-port outputs for signal integrity.

Part Context

This part belongs to the SN74CBTU series of analog switches and multiplexers from Texas Instruments. These devices are characterized by low on-resistance and fast switching speeds. The SN74CBTU4411 specifically addresses the needs of multi-bit data buses in memory applications, offering a compact solution compared to discrete transistor arrangements.

Replacement Considerations

Consult official substitution guides for compatible parts within the same family. Verify pinout compatibility and electrical specifications such as voltage ranges and signaling support before replacing.