CD74FCT163244ASM

Overview

The CD74FCT163244ASM is a CMOS bus driver from the FCT series manufactured by Harris Corporation. It features four functions, each handling four bits of data with true output polarity. The device utilizes a 48-pin PDSO package and operates within a temperature range of -40 °C to 85 °C. Key electrical characteristics include a load capacitance of 50 pF and a maximum low-level output current of 0.024 A. The logic circuit type is defined as a bus driver with two ports.

Feature Summary

• Bus hold inputs eliminate the need for external pull-up resistors
• Three-state outputs with series resistor configuration
• Low enable control type

Applications

• High-speed data bus buffering
• System memory interface driving
• Microprocessor address/data line isolation

Procurement Notes

Verify component authenticity through authorized Harris Corporation distributors or certified secondary market suppliers. Confirm manufacturing date codes and lot traceability to ensure compliance with original specifications. Inspect packaging integrity to prevent moisture damage. Validate pin alignment and lead finish quality against datasheet mechanical drawings before integration into production assemblies.

Selection Notes

Select this component when designing systems requiring high-speed bidirectional data transfer with noise immunity. The integrated bus hold feature simplifies design by removing external pull-up requirements. Ensure voltage levels match system requirements and verify thermal management capabilities for the specified operating temperature range during PCB layout.

Part Context

This part belongs to the Harris FCT (Fast CMOS) logic family, designed for high-speed applications. It complements other FCT devices like the CD74FCT163245 transceiver and CD74FCT163373 latch. The manufacturer, Harris Corporation, has undergone corporate changes, affecting current availability and support channels for legacy components.

Replacement Considerations

Check for direct equivalents in updated logic families if Harris supply is discontinued. Verify pin compatibility and electrical parameters against alternative manufacturers' offerings. Ensure functional equivalence regarding bus hold characteristics and three-state behavior.