SN74CBT3257CRGYR

Overview

The SN74CBT3257CRGYR is a dual 1-of-4 FET multiplexer/demultiplexer from the SN74CBT3253C series by 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 2 x 1:4 switch. Key electrical specifications include a maximum on-resistance of 12 Ohms, a bandwidth of 200 MHz, and a maximum propagation delay of 6.7 ns. It supports surface mount installation in a VQFN-16 package and functions within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel architecture providing two independent 1-of-4 switching paths for signal routing applications.
• High-speed performance characterized by a 200 MHz bandwidth and low propagation delays suitable for data-intensive interfaces.
• Low on-resistance design ensures minimal signal attenuation and maintains signal integrity across the switched path.

Applications

• Portable equipment requiring efficient signal routing between multiple sources.
• Consumer electronics utilizing high-speed data transmission protocols.
• Industrial control systems needing reliable analog or digital signal switching.

Procurement Notes

Verify the specific suffix 'CGYR' against the manufacturer's official datasheet to confirm the exact package dimensions and tape-and-reel specifications. Ensure that the 4 V to 5.5 V supply voltage requirements align with the target system design. Confirm RoHS compliance status and moisture sensitivity level prior to procurement to meet assembly standards.

Selection Notes

Select this component when a dual-channel, 1-of-4 configuration is required at 5 V logic levels. It serves as a direct alternative to standard CBT series devices but offers enhanced speed and lower resistance. Consider the VQFN-16 footprint constraints during PCB layout. Evaluate thermal dissipation needs given the low standby current and moderate on-resistance characteristics.

Part Context

This part belongs to the SN74CBT3253C family, which focuses on high-speed, low-voltage switching solutions. It complements other Texas Instruments logic ICs designed for portable and consumer applications. The CBTLV and CBT families share similar functional goals but differ in voltage ranges and performance metrics, positioning this device for 5 V systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before considering alternative manufacturers or pin-compatible variants.