SN74S280NSR

Overview

The SN74S280NSR is a 9-bit odd/even parity generator/checker from the S TTL logic series by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum propagation delay of 20 ns. The device features complementary outputs for both odd and even parity states. It is housed in a surface-mount SOIC-14 package and is rated for commercial operating temperatures between 0°C and +70°C.

Feature Summary

• Generates or checks 9-bit data streams for odd and even parity conditions simultaneously
• Provides complementary output signals indicating valid odd or even parity status
• Utilizes Schottky TTL technology for high-speed switching performance

Applications

• Data transmission error detection circuits
• Memory system integrity verification
• Digital communication interface parity checking

Procurement Notes

Verify the specific ordering suffix 'SR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the S TTL logic family specifications align with the target system's voltage levels and drive requirements before finalizing procurement orders.

Selection Notes

Select this component when high-speed parity generation is required using standard Schottky TTL technology. Ensure the design accommodates the specific power consumption characteristics inherent to the S series compared to lower-power alternatives like LS or HC families.

Part Context

This part belongs to the SN54/74S280 family of parity generators. The 'N' designation typically indicates a plastic small-outline package, while 'SR' specifies the reel packaging configuration. It serves as a digital logic solution for verifying data integrity in parallel bus architectures.

Replacement Considerations

SN74LS280 offers similar functionality with lower power consumption but slower speed. SN74F280 provides faster switching speeds within the same logic family.