CD74FCT162244ATSM

Overview

The CD74FCT162244ATSM is a CMOS bus driver from the FCT series, manufactured by Harris Corporation. It features four functional blocks, each handling four bits of data, resulting in a 16-bit configuration. The device provides true (non-inverting) outputs with three-state capability and operates within a supply voltage range of 4.5 V to 5.5 V, typically at 5 V. Packaged in a 48-pin SSOP, it supports an operating temperature range from -40 °C to 85 °C. Key electrical parameters include a propagation delay of 4.8 ns at nominal supply and a load capacitance rating of 50 pF.

Feature Summary

• Provides non-inverting buffering for sixteen digital signals using four independent four-bit drivers.
• Features three-state outputs controlled by low-active enable signals to manage bus traffic.
• Incorporates bus hold input circuitry to maintain stable logic states without requiring external pull-up resistors.

Applications

• High-speed parallel data bus buffering in computer systems
• Clock distribution networks requiring signal integrity
• Memory interface circuits for address and data lines

Procurement Notes

Verify the manufacturer origin, as Harris Corporation's semiconductor assets were acquired by Renesas Electronics. Confirm that the specific part number corresponds to the original Harris specification rather than a later Renesas rebranding if legacy compatibility is required. Check RoHS compliance status, as older Harris batches may not meet current environmental standards.

Selection Notes

Select this component when a 16-bit non-inverting buffer with three-state control is needed. Ensure the design accommodates the 4.5 V to 5.5 V supply range. Consider the SSOP-48 package dimensions for PCB layout. Verify that the bus hold feature meets system requirements for preventing floating inputs during inactive states.

Part Context

This device belongs to the FCT (Fast CMOS) family, designed for high-speed operation with CMOS power efficiency. It serves as a bridge between standard logic levels and high-capacitance loads. The 162244 variant specifically denotes a quad 4-bit non-inverting driver structure, distinct from inverted or octal configurations within the same series.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other 74FCT162244 variants from different manufacturers only if pinout and electrical specifications are verified identical.