SN74CBT3253CPW

Overview

The SN74CBT3253CPW is a dual 1-of-4 multiplexer/demultiplexer switch IC from Texas Instruments. It operates on a single power supply ranging from 4 V to 5.5 V, with a typical operating voltage of 5 V. The device features two independent channels, each configured as a 1:4 selector. Key electrical specifications include a maximum on-resistance of 12 ohms, a maximum propagation delay of 6.7 ns, and a maximum turn-off time of 6.1 ns. It supports a bandwidth of 200 MHz and has a maximum quiescent current of 3 uA. The component functions within an ambient temperature range of -40°C to +85°C and is housed in a TSSOP-16 surface-mount package.

Feature Summary

• Dual-channel architecture providing two independent 1-to-4 signal routing paths
• Low on-resistance for minimal signal attenuation across the passband
• High-speed switching capability suitable for high-frequency data transmission
• Ultra-low power consumption with microampere-level standby current

Applications

• Portable equipment requiring efficient signal path management
• Consumer electronics utilizing low-voltage logic interfaces
• Industrial control systems needing reliable analog or digital switching
• Telecommunications infrastructure supporting high-bandwidth data lines

Procurement Notes

Verify the specific suffix 'CPW' against the manufacturer's official documentation to confirm the TSSOP-16 package type and tape-and-reel or tube availability. Ensure the order matches the exact part number to avoid confusion with similar variants like the DBR or RGYR packages. Confirm RoHS compliance status directly with the supplier or datasheet before finalizing procurement.

Selection Notes

Select this component when designing circuits that require dual independent multiplexing with low insertion loss. It is appropriate for applications demanding fast switching speeds under 5 V logic levels. Consider the TSSOP-16 footprint constraints during PCB layout. Compare against other SN74CBT series devices if different channel counts or pin configurations are required for the specific system topology.

Part Context

This device belongs to the SN74CBT3253C family of high-speed CMOS multiplexer switches. It is manufactured by Texas Instruments and designed for general-purpose signal routing in digital and analog domains. The component integrates FET-based switches controlled by standard logic inputs, offering a compact solution for managing multiple signal sources in space-constrained electronic designs.

Replacement Considerations

Direct substitutes include SN74CBT3253DBR (SSOP-16) and SN74CBT3253CRGYR (VQFN-16). Verify pin compatibility and package dimensions before swapping. Other family members like SN74CBT3251 offer different channel configurations.