SN74CBTLV3251DR

Overview

The SN74CBTLV3251DR is a low-voltage 1-of-8 FET multiplexer/demultiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 2.3 V to 3.6 V and features an 8-channel configuration in a single circuit setup. The device utilizes a SOIC-Narrow-16 surface-mount package. Key electrical specifications include a maximum on-resistance of 7 Ohms, a bandwidth of 200 MHz, and a maximum power supply current of 10 uA. Timing characteristics specify a maximum propagation delay of 6.4 ns and a maximum transition time of 6.8 ns. It supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides high-speed signal routing with a 200 MHz bandwidth for efficient data transmission.
• Features low on-resistance to minimize signal attenuation across the selected channel path.
• Operates at low supply voltages to support energy-efficient system designs.
• Integrates eight independent channels into a compact surface-mount package.

Applications

• Portable equipment requiring low-power signal switching
• Battery-powered consumer electronics systems
• High-speed data acquisition circuits

Procurement Notes

Verify the specific ordering suffix 'DR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the SOIC-Narrow-16 footprint matches the target PCB layout dimensions. Ensure the 2.3 V to 3.6 V supply voltage range aligns with the system's power rails. Check RoHS compliance documentation for regulatory adherence in the destination market.

Selection Notes

Select this component when a single 8-to-1 multiplexing function is required within a low-voltage logic environment. The narrow SOIC package offers space efficiency for dense board layouts. Consider the 7 Ohm on-resistance limit for applications sensitive to signal loss. Verify that the 6.4 ns propagation delay meets the timing requirements of the specific data bus or control line being switched.

Part Context

This part belongs to the SN74CBTLV3251 series of low-voltage CMOS multiplexers. It serves as a digital switch controlled by binary address inputs to route one of eight input lines to a common output. The device is designed for applications demanding fast switching speeds and low power consumption in portable devices.

Replacement Considerations

The SN74CBTLV3251D is listed as a manufacturer-recommended alternative. This variant shares the same logical function but differs in packaging, utilizing a tube instead of a reel. Verify compatibility with existing pick-and-place equipment before substitution.