9340DC

Specialty Logic Overview

The Fairchild Semiconductor 9340DC is a 4-bit Arithmetic Logic Unit (ALU) integrated circuit designed for TTL logic applications. It is housed in a 24-lead Ceramic Dual In-line Package (CDIP). The device operates with a nominal supply voltage of 5 V and supports standard TTL input and output levels. It functions as a specialty logic component capable of performing various arithmetic and logical operations on 4-bit data words.

Specialty Logic Feature Summary

• Performs arithmetic and logical operations on 4-bit binary data
• Compatible with standard Transistor-Transistor Logic (TTL) families
• Utilizes ceramic dual in-line packaging for robust physical construction

Specialty Logic Applications

• Digital arithmetic processing circuits
• Logic control systems requiring 4-bit computation
• Industrial equipment using TTL-based architectures

Specialty Logic Procurement Notes

Verify the specific manufacturer lot code and date code, as this component may be sourced from legacy inventory or surplus channels. Confirm that the package integrity is intact, particularly for ceramic DIP variants which may have been stored for extended periods. Ensure compatibility with existing TTL power supplies and signal levels before integration into new designs.

Specialty Logic Selection Notes

Select the 9340DC when a dedicated 4-bit ALU is required within a TTL-compatible system architecture. Consider the CDIP package form factor if through-hole mounting and high thermal stability are necessary. Evaluate whether the fixed 4-bit width meets the computational requirements of the target application compared to wider bit-width alternatives.

Specialty Logic Part Context

This component belongs to the Fairchild Semiconductor family of specialty logic ICs, specifically those prefixed with '9'. These devices typically serve niche roles in digital electronics, such as arithmetic units, latches, and multiplexers, often utilizing TTL technology for reliable operation in industrial and commercial environments.

Specialty Logic Replacement Considerations

The 9340DM is documented as a military-grade equivalent to the 9340DC. Both share the same functional description as a 4-bit ALU. Verify pinout and electrical specifications against official datasheets before substitution.