CD74FCT162H245CTMT

Overview

The CD74FCT162H245CTMT is a dual 8-bit bus transceiver manufactured by Harris Corporation, belonging to the FCT logic family. It utilizes CMOS technology and operates within a supply voltage range of 4.5V to 5.5V. The device features bidirectional data flow control via a direction pin and includes three-state outputs for effective bus management. It is housed in a 48-pin TSSOP plastic package with a shrink pitch. The component supports an extended commercial operating temperature range from -40°C to +85°C.

Feature Summary

• Dual 8-bit configuration providing 16 bits of bidirectional data transfer capability
• Bus-hold inputs designed to eliminate the need for external pull-up resistors
• Three-state outputs allowing safe connection to shared system buses
• Direction control functionality enabling flexible data flow management

Applications

• High-speed bidirectional data bus interfaces
• Memory-to-memory data transfers
• Microprocessor-based system interconnects
• I/O expansion modules requiring bus isolation

Procurement Notes

Verify manufacturer authenticity as Harris Corporation assets were acquired by Renesas Electronics. Confirm RoHS compliance status, as original specifications indicate non-compliance. Ensure the specific suffix matches the required package type and temperature rating. Cross-reference datasheets between legacy Harris documentation and current Renesas archives to validate pinout and electrical characteristics before integration.

Selection Notes

Select this component when a dual 8-bit transceiver with bus-hold capabilities is required for 5V CMOS systems. It serves as a high-speed replacement for older ABT functions. Consider the TSSOP-48 package constraints and verify that the 4.5V to 5.5V supply range aligns with the target system design. Evaluate thermal performance within the specified -40°C to +85°C operational window.

Part Context

This part belongs to the 74FCT162 series of bus transceivers, which are designed for high-speed applications. The 'H' variant typically denotes enhanced drive or speed characteristics compared to standard versions. As a Harris Corporation product, it represents legacy CMOS logic technology now managed under Renesas Electronics. The device is engineered to replace faster but less power-efficient bipolar transistor-transistor logic families.

Replacement Considerations

Texas Instruments 74FCT162H245ATPACT

FAQ

What is the function of the bus-hold inputs?

Bus-hold inputs maintain the last logic state of an input pin when the driving signal is removed, eliminating the need for external pull-up resistors.

How does the direction control work?

A single direction pin controls the data flow direction for both 8-bit sections simultaneously, determining whether data moves from port A to B or vice versa.