N74F280BD,602

Overview

The N74F280BD,602 is a 9-bit odd/even parity generator and checker integrated circuit manufactured by NXP USA Inc. It operates within a supply voltage range of 4.5V to 5.5V and features high-impedance NPN base inputs with a typical input current of 20μA in both High and Low states. The device provides Even (∑E) and Odd (∑O) parity outputs, where ∑E is High for an even number of High data inputs and ∑O is High for an odd number. Typical propagation delay from data inputs to outputs is 5.5ns, with a total typical supply current of 26mA. It is housed in a 14-pin plastic small outline package.

Feature Summary

• Generates or checks odd and even parity on up to 9 bits simultaneously
• High-impedance NPN base inputs reduce loading on driving circuits
• Outputs indicate parity status via dedicated Even and Odd pins
• Word length expansion supported through cascading multiple devices

Applications

• Error detection in high-speed data transmission systems
• Data retrieval system integrity verification
• Cascaded parity checking for extended word sizes

Procurement Notes

Verify the specific suffix '602' against official manufacturer documentation to confirm packaging details and compliance status. Confirm that the commercial temperature range meets application requirements. Check for obsolescence notices as this component originates from legacy Philips/NXP specifications. Ensure pinout compatibility with existing board layouts before procurement.

Selection Notes

Select this component when 9-bit parity generation or checking is required within the 74F logic family. Consider the 14-pin SO package constraints for surface mount applications. Evaluate the need for industrial temperature variants if operating outside the commercial range. Verify fan-out capabilities against load requirements given the specific output drive characteristics.

Part Context

This part belongs to the 74F series of high-speed TTL-compatible logic devices originally developed by Philips Semiconductors. The 74F280B variant specifically addresses parity functions. The 'N74F280BD,602' designation indicates the commercial grade version in a 14-pin SOIC package. This series is characterized by fast switching speeds suitable for demanding digital logic applications.

Replacement Considerations

Check for direct equivalents in the 74F280B family from other manufacturers. Verify pinout and electrical parameter compatibility before substitution. Consider newer generations of parity checkers if available.