SN54LS90J

Counter Dividers Overview

The SN54LS90J is a hermetically sealed ceramic dual in-line package (CDIP) decade counter manufactured by Texas Instruments. It operates within a supply voltage range of 4.75V to 5.25V and supports clock frequencies up to 32 MHz or 16 MHz depending on configuration. The device features asynchronous reset and preset functions, unidirectional counting direction, and single-stage operation. It is designed for military applications with an extended operating temperature range from -55°C to 125°C.

Counter Dividers Feature Summary

• Hermetically sealed ceramic construction suitable for harsh environments
• Asynchronous reset and preset capabilities for flexible control
• Unidirectional counting functionality integrated into a single stage

Counter Dividers Applications

• Military and defense electronic systems
• High-reliability aerospace instrumentation
• Harsh environment industrial control circuits

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'J' corresponds to the CDIP package and QML certification status required for your application. Confirm that the RoHS exemption aligns with your manufacturing facility's compliance standards. Ensure the lead finish matches your assembly process requirements before finalizing procurement orders.

Counter Dividers Selection Notes

Select this component when military-grade reliability and radiation hardness are mandatory. The SN54LS90J provides superior environmental sealing compared to standard plastic packages. Consider its higher cost and specialized packaging constraints against the necessity for extended temperature performance and long-term stability in critical missions.

Counter Dividers Part Context

This part belongs to the SN54LS90 family of decade counters. It shares functional similarities with the SN74LS90 but offers enhanced durability through ceramic packaging. The 'J' suffix specifically denotes the ceramic dual in-line package variant intended for high-reliability sectors rather than general commercial use.

Counter Dividers Replacement Considerations

SNJ54LS90J

Counter Dividers FAQ

Is the SN54LS90J RoHS compliant?

No, the SN54LS90J is not RoHS compliant as it is a military-grade ceramic packaged component.

What is the maximum operating temperature for this device?

The maximum operating temperature for the SN54LS90J is 125°C.