SN74CBT3257CPWRE4

Overview

The SN74CBT3257CPWRE4 is a digital bus switch IC from Texas Instruments, classified as a 16-bit buffer/driver with three-state outputs. It operates within a supply voltage range of 4 V to 5.5 V and supports surface mount installation in a TSSOP-14 package. The device features a maximum on-resistance of 12 Ohms and a maximum propagation delay of 150 ps. It is designed for industrial temperature ranges, functioning between -40°C and +85°C. This component is part of the SN74CBT3125C series and complies with RoHS standards.

Feature Summary

• Provides 16-bit buffering and driving capabilities with three-state output control
• Utilizes ABT logic technology for high-speed signal transmission
• Supports operation at standard 3.3V system voltages

Applications

• High-speed data bus switching applications
• System I/O expansion buffers
• Portable equipment requiring low power consumption

Procurement Notes

Verify the complete manufacturer part number including the E4 suffix to ensure compliance with specific environmental regulations. Confirm the package type matches the design footprint requirements. Check current availability status as production cycles may vary. Ensure the operating voltage range aligns with the target system's power supply specifications before integration.

Selection Notes

Select this component when 16-bit wide bus switching is required with three-state isolation. The ABT technology offers a balance of speed and power efficiency suitable for 3.3V systems. Consider the TSSOP-14 package constraints for PCB layout. Verify that the 12 Ohm on-resistance meets the signal integrity requirements of the connected loads.

Part Context

This device belongs to the SN74CBT3125C series of digital bus switches manufactured by Texas Instruments. It is functionally related to other components in the CBT family but is distinct in its 16-bit width and specific voltage operating range. The part is categorized under digital bus switch ICs and serves as a buffer or driver within complex logic circuits.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.