SN74CBT3244CDW

Overview

The SN74CBT3244CDW is an octal FET bus switch manufactured by Texas Instruments, designed for high-speed data transmission applications. It operates within a supply voltage range of 2.7 V to 5.5 V and supports bidirectional data flow across eight independent channels. The device features low on-resistance and low leakage current, ensuring signal integrity in complex digital systems. It is housed in a 20-pin SOIC package and is rated for operation over an extended temperature range from -40°C to +85°C.

Feature Summary

• Provides eight independent bidirectional bus switches for flexible data routing
• Supports wide supply voltage operation from 2.7 V to 5.5 V
• Features low on-resistance to minimize signal attenuation
• Designed for high-speed data transmission with low capacitance

Applications

• High-speed data buses in consumer electronics
• Memory module interface circuits
• Portable equipment requiring efficient power management
• Industrial control systems with mixed voltage domains

Procurement Notes

Verify the specific package variant (SOIC-20) and temperature grade against project requirements. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure ESD handling procedures are followed during assembly due to the sensitivity of CMOS input structures. Cross-reference the ordering suffix with official TI databases to confirm availability and lead times.

Selection Notes

Select this component when an octal configuration is required for bidirectional switching between 2.7 V and 5.5 V domains. Consider the SOIC-20 package for standard surface-mount assembly processes. Evaluate the trade-off between the device's propagation delay and system clock speeds. Compare against similar CBT series parts if pin compatibility or specific electrical characteristics differ.

Part Context

This part belongs to the Texas Instruments SN74CBT series of FET bus switches, which are optimized for high-bandwidth applications. The series offers various configurations including octal and hex types, catering to different data width requirements. These devices are commonly used in systems where multiple voltage levels must be interconnected efficiently without significant signal degradation.

Replacement Considerations

SN74CBT3244DGVR: Different package (TVSOP-20). SN74CBT3244CPWR: Different package (TSSOP-20). Verify pinout compatibility before substitution.