JM54ACT245SRA-R

Overview

The JM54ACT245SRA-R is an octal bus transceiver manufactured by National Semiconductor. It features non-inverting, bidirectional data transmission with three-state outputs housed in a 20-pin CERDIP package. The device operates on a single 5-volt supply and is designed for asynchronous communication between data buses. Key electrical characteristics include high-speed performance and low power consumption typical of the ACT series.

Feature Summary

• Provides non-inverting, bidirectional data transfer between two 8-bit buses
• Features three-state outputs to facilitate direct connection to system buses
• Utilizes radiation-hardened CMOS technology for latchup immunity
• Includes direction control and enable inputs to manage data flow

Applications

• Asynchronous two-way communication between data buses
• Bus-oriented memory and I/O systems
• High-reliability aerospace or military electronic circuits

Procurement Notes

Verify the specific manufacturer origin, as National Semiconductor assets were acquired by Texas Instruments. Confirm that the CERDIP package matches the required form factor for your application. Ensure the part number suffix corresponds to the exact radiation-hardening level and processing standard required for your environment.

Selection Notes

Select this component when a radiation-tolerant, high-speed octal transceiver is required for harsh environments. Compare against standard commercial variants if radiation hardness is not necessary. Consider the 20-pin CERDIP footprint constraints during PCB layout. Verify voltage compatibility with the target bus architecture before integration.

Part Context

This component belongs to the 54ACT family, which denotes military-grade specifications. It serves as a specialized interface solution for critical systems requiring robust signal integrity and resistance to environmental stressors compared to standard commercial logic devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical compatibility carefully if considering alternative manufacturers.