DM74AS280N

Parity Generators And Checkers Overview

The DM74AS280N is a 9-bit parity generator and checker integrated circuit manufactured by Fairchild Semiconductor. It operates within a supply voltage range of 4.5V to 5.5V and features a 14-pin DIP package. The device supports high-speed AS logic family performance, ensuring reliable data integrity verification in digital systems.

Parity Generators And Checkers Feature Summary

• Generates or checks parity for 9-bit data words
• Supports both even and odd parity modes via mode control input
• Provides complementary outputs for direct interface compatibility

Parity Generators And Checkers Applications

• Data bus error detection circuits
• Memory system parity checking
• Communication interface data validation

Parity Generators And Checkers Procurement Notes

Verify the manufacturer origin, as Fairchild Semiconductor assets were acquired by onsemi. Confirm the specific suffix 'N' denotes the PDIP-14 package variant. Check RoHS compliance status against current manufacturing standards, as legacy parts may have varying environmental declarations. Ensure the source provides an official datasheet matching the DM74AS280N specification sheet.

Parity Generators And Checkers Selection Notes

Select this component when a dedicated 9-bit parity solution is required within the AS logic family for speed-critical applications. Compare propagation delay specifications against system timing requirements. Verify pinout compatibility with existing PCB layouts designed for standard 14-pin DIP packages. Consider power consumption differences compared to LS or ALS series alternatives if thermal management is constrained.

Parity Generators And Checkers Part Context

This part belongs to the 74AS (Advanced Schottky) logic family, known for improved speed over standard TTL. It serves as a specialized functional block for data integrity, distinct from general-purpose logic gates. The DM prefix typically indicates a commercial temperature range and specific packaging configuration defined by the original manufacturer.

Parity Generators And Checkers Replacement Considerations

SN74AS280N is a confirmed equivalent part number from Texas Instruments offering identical functionality and pinout compatibility.