IDT74FCT2245TQ

Overview

The IDT74FCT2245TQ is an octal bus transceiver from the FCT series, manufactured by Integrated Device Technology. It features true outputs and operates within a supply voltage range of 4.75V to 5.25V. The device provides three-state outputs and includes series damping resistors for signal integrity. It is housed in a 20-pin SSOP package and supports an extended commercial operating temperature range from -40°C to +85°C.

Feature Summary

• Octal bidirectional data transmission capability with direction control
• Three-state outputs designed to minimize bus contention
• Integrated series damping resistors to reduce signal reflections

Applications

• High-speed memory bus interfaces
• Microprocessor-to-peripheral communication links
• Data acquisition systems requiring isolated I/O expansion

Procurement Notes

Verify component authenticity through authorized distributors due to discontinuation status. Confirm RoHS compliance and specific package markings against official datasheets. Check for obsolescence notices or replacement part recommendations from Renesas Electronics, the current manufacturer of the IDT logic portfolio.

Selection Notes

Select this component for applications requiring high-speed octal data transfer with controlled impedance. Ensure the design accommodates the 4.75V to 5.25V supply requirement. Verify that the 20-SSOP package dimensions fit the PCB layout constraints and thermal requirements for the -40°C to +85°C operating range.

Part Context

This device belongs to the 74FCT family of FAST CMOS logic components. It serves as a high-performance replacement for older transistor-transistor logic (TTL) devices. The FCT series is characterized by low power consumption and high speed, making it suitable for modern digital systems requiring efficient data routing.

Replacement Considerations

Check for CY74FCT2245 variants from Texas Instruments or Renesas. Verify pin compatibility and electrical specifications before substitution.