FST32X245QSPX

Overview

The FST32X245QSPX is a 16-bit high-speed CMOS bus driver manufactured by Fairchild Semiconductor. It operates at an operating supply voltage of 5 V and features a maximum on resistance of 11 Ohms. The device provides TTL-compatible bus switching in a standard flow-through mode with a maximum propagation delay of 250 us. It is housed in a 40-pin Quad Flat Package (QVSOP) and supports a minimum operating temperature of -40 C.

Feature Summary

• Provides 16-bits of high-speed CMOS bus switching capability
• Features TTL-compatible logic levels for broad interface compatibility
• Utilizes standard flow-through pin configuration for simplified PCB layout

Applications

• High-speed data bus interconnects
• TTL-to-CMOS level translation interfaces
• System board signal routing

Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm the specific package variant matches the QVSOP-40 designation. Ensure the part number suffix corresponds to the required tape-and-reel or tube packaging format as specified in the official datasheet. Cross-reference the manufacturing date code to ensure compliance with current environmental standards.

Selection Notes

Select this component when a 16-bit bidirectional bus driver with TTL compatibility is required. The low on-resistance specification makes it suitable for applications demanding minimal signal attenuation. Consider the 40-pin package constraints during mechanical design. Verify that the 5 V supply voltage aligns with the system power architecture before integration.

Part Context

This device belongs to the FST series of fast bus switches from Fairchild Semiconductor, now part of onsemi. The series is designed for high-performance digital systems requiring efficient data transfer between different logic families. The QSPX suffix indicates the specific quad flat package configuration used for this particular unit.

Replacement Considerations

Consult official substitution guides for equivalent 16-bit bus drivers. Verify pinout compatibility and electrical specifications such as on-resistance and propagation delay before replacing.