JM38510/34803B2A

Overview

The JM38510/34803B2A is an octal bus transceiver from the F/FAST series, manufactured by Texas Instruments. It features bidirectional data transmission between two 8-bit buses with three-state outputs. The device operates within a temperature range of -55 °C to 125 °C and utilizes TTL logic technology. It is housed in a ceramic dual in-line package (CDIP) or leaded chip carrier configuration, designed for high-speed asynchronous communication applications requiring reliable data bus interfacing.

Feature Summary

• Provides bidirectional data transfer between two independent 8-bit buses
• Equipped with three-state outputs to facilitate direct system bus connections without additional buffering
• Utilizes common control signals to manage data direction and output enablement simultaneously

Applications

• Asynchronous communication interfaces between data buses
• High-speed memory-to-memory transfers
• Bus-oriented architectures requiring isolated bidirectional data paths

Procurement Notes

Verify the specific package variant (CDIP vs. LCCC) and thermal rating during procurement, as military-grade JM38510 parts often have strict handling requirements. Confirm that the supplier provides traceability documentation consistent with MIL-PRF-38510 standards. Ensure compatibility with existing board layouts regarding pin assignments and mounting styles before finalizing orders.

Selection Notes

Select this component when designing systems requiring robust, high-speed bidirectional data routing with defined three-state isolation. Consider the F/FAST series speed characteristics against power consumption constraints. Verify that the operating voltage levels align with the target TTL logic family and that the package style meets the mechanical constraints of the intended chassis or module design.

Part Context

This part belongs to the JM38510 military-grade integrated circuit series produced by Texas Instruments. It is functionally equivalent to commercial SN54F245 devices but adheres to stricter reliability and environmental testing standards required for aerospace and defense applications. The component represents a standard solution for critical bus interface needs where long-term stability and radiation hardness are prioritized over cost.

Replacement Considerations

The commercial equivalent is the SN54F245. Verify that the replacement meets all environmental and reliability specifications if used in non-military contexts. Ensure pinout compatibility and electrical parameters match exactly to avoid redesign efforts.