SNJ54LS593J

Overview

The SNJ54LS593J is an asynchronous positive edge-triggered 8-bit up binary counter from the LS series. It features registered inputs and multiplexed I/O capabilities with a TCO output. The device is housed in a hermetically sealed ceramic CDIP-20 package. It operates within a temperature range of -55 °C to 125 °C and supports 3-state outputs.

Feature Summary

• Asynchronous positive edge-triggered counting mechanism
• Registered inputs with multiplexed I/O functionality
• Hermetically sealed ceramic construction for environmental stability

Applications

• Military and defense applications requiring QML certification
• High-reliability aerospace systems
• Harsh environment industrial control circuits

Procurement Notes

Verify the specific ordering suffix against the latest TI Package Option Addendum to confirm active production status and material type. Ensure the CDIP-20 package matches design requirements. Confirm RoHS exemption status as military variants may differ from catalog standards. Validate lead finish specifications for compatibility with assembly processes.

Selection Notes

Select this component when military-grade reliability and wide temperature operation are required. The LS series offers standard logic compatibility. Consider the CDIP-20 package for through-hole mounting in ruggedized designs. Verify that asynchronous triggering aligns with system timing constraints compared to synchronous alternatives.

Part Context

This part belongs to the SN54LS593 family, which includes military and catalog versions. The 'SNJ' prefix indicates a ceramic DIP package suitable for high-reliability environments. It is distinct from plastic packages like the SN74LS593N or surface mount options such as the SN74LS593DWR.

Replacement Considerations

Public confirmed substitute part numbers: SN54LS593J, SN54LS593J.A.