IDT74FCT245TQ

Overview

The IDT74FCT245TQ is a FAST CMOS octal bidirectional transceiver manufactured by Integrated Device Technology. It features an 8-bit, non-inverting bus driver with three-state outputs in a 20-TSSOP package. The device operates within a supply voltage range of 4.75V to 5.25V. Key electrical specifications include a maximum propagation delay of 4.6ns at nominal supply and a low-level output current capability of 64mA. It supports TTL input levels and is designed for high-speed data transmission applications requiring robust drive strength.

Feature Summary

• Octal bidirectional data transfer capability
• Three-state output configuration
• Non-inverting logic function
• FAST CMOS technology for high speed

Applications

• High-speed data bus systems
• Memory interface circuits
• Control signal routing
• Parallel data transmission lines

Procurement Notes

Verify the manufacturer source carefully as IDT was acquired by Renesas. Ensure the part number suffix matches the required package type (TSSOP). Confirm voltage ratings align with system requirements. Check for RoHS compliance status if environmental regulations apply. Validate authenticity through authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when an 8-bit bidirectional transceiver with three-state outputs is required. It is suitable for systems operating at 5V logic levels. Consider the TSSOP package size for PCB layout constraints. Evaluate the 4.6ns propagation delay against system timing requirements. Ensure compatibility with TTL input thresholds for proper signal interfacing.

Part Context

This component belongs to the 74FCT series of FAST CMOS logic devices. It serves as a standard interface solution for digital systems requiring reliable data transfer. The device integrates multiple transceivers into a single package to reduce board space. It is commonly used in computing and communication equipment where speed and drive capability are critical.

Replacement Considerations

Check for equivalent parts from Renesas or other manufacturers offering similar 8-bit bus transceivers. Verify pinout compatibility before substitution. Ensure voltage and current specifications meet or exceed original requirements. Confirm package dimensions match existing footprints.