DM74AS286N

Parity Generators And Checkers Overview

The DM74AS286N is a 9-bit parity generator/checker in a 14-lead PDIP package. It operates on a 4.5V to 5.5V supply with an operating temperature range of 0°C to +70°C. Propagation delays are 3ns minimum, with maximums of 15ns for Parity I/O and 16.5ns for Parity Error outputs. Supply current ranges from 43mA to 50mA depending on the XMIT mode.

Parity Generators And Checkers Feature Summary

• Generates or checks odd/even parity for nine data lines
• Features a bus-driver parity I/O port controlled by the XMIT line
• Includes circuitry to maintain 3-STATE during power transitions

Parity Generators And Checkers Applications

• Bus driver parity implementation
• System upgrades replacing DM74AS280 circuits
• Cascaded n-bit parity generation

Parity Generators And Checkers Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm package integrity and pin alignment against the N14A specification. Review datasheet revisions for any electrical characteristic updates prior to integration into final designs.

Parity Generators And Checkers Selection Notes

Select this device when upgrading legacy MSI parity systems requiring higher performance. The XMIT control pin enables flexible configuration between input and output modes. Ensure system voltage and temperature constraints align with the specified operating conditions.

Parity Generators And Checkers Part Context

Manufactured by Fairchild Semiconductor (now onsemi), this part belongs to the 74AS logic family. It utilizes advanced Schottky circuitry for high-speed operation. The PDIP variant provides through-hole mounting capabilities suitable for standard prototyping and industrial applications.

Parity Generators And Checkers Replacement Considerations

Direct substitute: SN74AS286D (Texas Instruments). Verify pin compatibility and electrical specifications before replacement.