DM93S62N

Overview

The DM93S62N is a high-speed Schottky logic integrated circuit manufactured by Fairchild Semiconductor. It functions as a 9-bit parity generator and checker, designed for digital communication systems requiring error detection. The device is housed in a standard 14-pin Mini-DIP package, suitable for through-hole mounting on printed circuit boards. As part of the DM93S62 series, it utilizes Schottky technology to ensure rapid switching speeds and reliable operation within standard TTL voltage levels.

Feature Summary

• Performs simultaneous generation and checking of parity for 9-bit data words
• Utilizes high-speed Schottky logic technology for reduced propagation delay
• Provides dedicated outputs for even and odd parity verification

Applications

• Digital communication interface error detection circuits
• Data bus integrity monitoring systems
• Memory subsystem parity checking modules

Procurement Notes

Verify the manufacturer marking matches Fairchild Semiconductor or authorized successor entities such as ON Semiconductor. Confirm the package type is 14-pin Mini-DIP (MDIP). Check for date codes indicating production era, as this component may be obsolete. Ensure pinout compatibility with original design schematics before integration into new hardware assemblies.

Selection Notes

Select this component when a fixed 9-bit parity solution is required within a legacy system architecture. It is appropriate for designs utilizing standard TTL logic families where Schottky speed benefits are necessary. Consider availability constraints due to potential end-of-life status compared to modern CMOS alternatives.

Part Context

This device belongs to the DM93S62 series of parity generators and checkers. It shares functional similarities with other 9-bit parity ICs but is distinct in its specific Schottky implementation and packaging. The series was designed to provide robust error detection capabilities for parallel data transmission applications during the era of bipolar logic dominance.

Replacement Considerations

Direct pin-compatible replacements may include equivalent parts from National Semiconductor or Texas Instruments within the 54S/74S logic families, provided they support 9-bit parity. Verify logical truth tables match exactly. Modern CMOS equivalents require level shifting considerations if interfacing with existing TTL circuits.