74AC273SCX

Overview

The MC74AC273SCX is an octal D-type flip-flop from the onsemi 74AC logic series, housed in a 16-pin SOIC package. It features eight edge-triggered D-type flip-flops with individual data inputs and Q outputs, sharing a common buffered clock and master reset. The device operates within a supply voltage range of 2 V to 6 V, supporting single-ended inputs and outputs. Key electrical specifications include a propagation delay of 13 ns, high-level output current of -24 mA, and low-level output current of 24 mA. It functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Contains eight edge-triggered D-type flip-flops with independent data inputs and corresponding outputs.
• Utilizes a common buffered clock input for simultaneous data loading across all flip-flops.
• Includes a buffered asynchronous master reset input to clear all flip-flops simultaneously.

Applications

• Register files in microprocessor systems
• Shift registers for serial-to-parallel conversion
• Data storage buffers in memory interfaces

Procurement Notes

Verify that the specific part number matches the required 16-pin SOIC package configuration, as other variants may utilize different footprints such as TSSOP or SOIC-WB. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure that the selected component aligns with the designated voltage and temperature requirements for the target application environment.

Selection Notes

Select this component when an octal D-type flip-flop with buffered inputs and standard CMOS output drive capabilities is required. Consider the 74AC series characteristics for operation within the 2V to 6V supply range. Evaluate alternative packages if surface area constraints differ from the standard SOIC form factor. Verify compatibility with system clock speeds given the specified propagation delay parameters.

Part Context

This component belongs to the MC74AC273 family of octal D-type flip-flops manufactured by onsemi. The AC series provides higher speed performance compared to legacy HC or HCT families while maintaining CMOS power efficiency. The SCX suffix typically denotes a specific tape-and-reel packaging option intended for automated surface-mount assembly processes.

Replacement Considerations

MC74AC273DTR2G: Octal D-type flip-flop in TSSOP-20 package. MC74AC273DWG: Octal D-type flip-flop in SOIC-WB-20 package. MC74AC273DWR2G: Octal D-type flip-flop in SOIC-20 package.