IDT74FCT821BTQ

Overview

The IDT74FCT821BTQ is a 10-bit bus driver from the FCT series, manufactured by Integrated Device Technology. It features true output polarity and operates with CMOS technology in a 24-pin SSOP package. The device provides three-state outputs and includes power-off disable functionality for its outputs. It supports a maximum load capacitance of 50 pF and is designed for high-performance bus interface applications.

Feature Summary

• Provides 10-bit unidirectional bus buffering with true output polarity
• Features three-state outputs for efficient bus line management
• Includes power-off disable capability to isolate outputs when unpowered

Applications

• High-speed data bus interfacing
• Memory bus buffering
• System architecture signal distribution

Procurement Notes

Verify that the specific part number matches the required SSOP-24 package configuration and speed grade. Confirm compliance with RoHS directives if environmental standards are mandatory for the project. Ensure the manufacturer source is authorized to guarantee component authenticity and traceability.

Selection Notes

Select this component for designs requiring 10-bit wide data path buffering with low input leakage. Consider the SSOP package constraints regarding pin pitch and board space. Verify that the three-state control logic aligns with the system's bus arbitration requirements.

Part Context

This device belongs to the FAST CMOS (FCT) family, which offers performance comparable to or exceeding standard TTL speeds while maintaining CMOS power consumption levels. The FCT series is widely used in digital systems for its compatibility with both TTL and CMOS logic families.

Replacement Considerations

Cross-reference with other manufacturers' 10-bit bus drivers in the FCT family, such as those from Texas Instruments or Pyramid Semiconductor, ensuring identical pinout and electrical characteristics.