54F573/BSA

Overview

The 54F573/BSA is an 8-bit bus driver/transceiver belonging to the F/FAST logic series, manufactured by Rochester Electronics. It features true output polarity and a 3-state output capability, housed in a ceramic DIP-20 package. The device supports a wide operating temperature range from -55 °C to 125 °C. Key electrical parameters include a maximum propagation delay of 8 ns and a maximum power supply current (ICC) of 50 mA. It is designed with a load capacitance specification of 50 pF and utilizes a broadside version architecture.

Feature Summary

• Provides 8-bit data buffering with true output polarity for signal integrity.
• Features 3-state outputs allowing direct connection to bus-oriented systems.
• Constructed in a hermetically sealed ceramic DIP-20 package for durability.
• Operates reliably across extended military-grade temperature ranges.

Applications

• Bus-oriented system data transmission
• Memory address drivers
• Military aerospace electronic systems

Procurement Notes

Verify the specific ordering suffix BSA against the original manufacturer's datasheet to confirm pinout and functional compatibility. Ensure the ceramic DIP-20 package matches the target PCB footprint. Confirm that the -55 °C to 125 °C temperature rating meets the environmental requirements of the final assembly. Validate that the 3-state output configuration aligns with the system bus design.

Selection Notes

Select this component when high-speed 8-bit data transfer is required in harsh environments. The F/FAST series offers a balance of speed and drive capability suitable for complex digital interfaces. The ceramic package provides superior thermal and mechanical stability compared to plastic alternatives. Consider the 50 pF load capacitance limit when designing trace lengths and termination strategies for optimal signal performance.

Part Context

This part is part of the SN54F573 family, originally defined by Texas Instruments under MIL-PRF-38535 specifications. Rochester Electronics produces these components using original IP or die/wafers from original suppliers. The BSA suffix typically denotes a specific military grade or packaging variant within the broader 54F573 logical family.

Replacement Considerations

Direct substitutes include other SN54F573 variants with compatible military ratings. Verify equivalent propagation delay and package dimensions before substitution. Cross-reference with NXP or Texas Instruments legacy documentation for functional equivalence.