NSC810AE-4/883

Programmable Timers And Oscillators Overview

The NSC810AE-4/883 is an 8-bit CMOS microprocessor manufactured by National Semiconductor, now part of Texas Instruments. It belongs to the NSC800 CPU family and is housed in a 40-pin ceramic Dual In-line Package (DIP). The device operates at a clock speed of 2.5 MHz and supports a military temperature range from -55 °C to +125 °C. Key internal resources include 128x8 RAM, three I/O ports, and two timers. The component is screened to MIL-STD-883 Class B (Modified) standards for reliability.

Programmable Timers And Oscillators Feature Summary

• Integrated memory architecture with 128 bytes of static RAM
• Three programmable general-purpose I/O ports
• Two built-in timer/counters for system control
• Military-grade screening compliant with MIL-STD-883 Class B (Modified)

Programmable Timers And Oscillators Applications

• Harsh environment embedded control systems
• Military aerospace instrumentation
• Industrial process controllers requiring wide temperature tolerance

Programmable Timers And Oscillators Procurement Notes

Verify that the specific suffix /883 confirms MIL-STD-883 screening compliance. Confirm the ceramic DIP package integrity and pin configuration matches the 40-pin requirement. Check for lead finish specifications, typically Tin/Lead (Sn/Pb), to ensure compatibility with assembly processes. Validate the manufacturer source as National Semiconductor or Texas Instruments.

Programmable Timers And Oscillators Selection Notes

Select this component when an 8-bit processor with on-chip RAM and I/O is required for high-reliability applications. Ensure the design accommodates the 2.5 MHz maximum frequency. Compare against the NSC800D series if additional processing power is needed, or the standard NSC810AD if military screening is not mandatory.

Programmable Timers And Oscillators Part Context

This part is a variant within the National Semiconductor NSC800 family, which includes the 8080-compatible NSC800 and the enhanced NSC810. The NSC810AE-4/883 specifically integrates memory and peripherals into a single chip, reducing board space compared to discrete logic solutions. It serves as a robust solution for legacy or specialized military hardware designs.

Programmable Timers And Oscillators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional compatibility with other NSC810 variants, such as the NSC810AD-4-MIL, noting potential differences in screening levels.