SN74AS286N

Overview

The SN74AS286N is a universal 9-bit parity generator/checker from Texas Instruments, part of the AS logic series. It features a local output for parity checking and a dedicated bus-driver parity I/O port capable of sourcing 48 mA. The device operates on a single 5 V supply with a typical propagation delay of 15 ns. It is housed in a standard 14-pin PDIP package and supports an operating temperature range of 0°C to 70°C.

Feature Summary

• Universal 9-bit parity generation and checking functionality
• Integrated bus-driver parity I/O port with high current drive capability
• Local output pin dedicated for internal parity verification

Applications

• High-speed data transmission systems requiring error detection
• Computer memory modules utilizing parity checking protocols
• Digital communication interfaces needing reliable data integrity verification

Procurement Notes

Verify the specific suffix 'N' confirms the 14-pin PDIP package variant. Confirm the AS series designation ensures compatibility with existing high-speed logic designs. Check manufacturer documentation for any updated environmental compliance statements or lead time changes prior to finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring robust 9-bit parity handling with significant drive strength. The AS series offers faster switching speeds compared to standard LS logic. Ensure the 14-pin DIP form factor fits the target PCB layout constraints and thermal requirements for commercial grade operation.

Part Context

This component belongs to the Texas Instruments SN74AS family, known for advanced Schottky technology providing high speed. It serves as a specialized logic function within digital circuits, distinct from general-purpose gates by focusing exclusively on parity algorithm implementation for data validation tasks.

Replacement Considerations

Direct substitutes include the SN54AS286J for military temperature ranges. Verify pinout compatibility before swapping with other parity ICs from different manufacturers.