CD74ACT273M

Overview

The CD74ACT273M is a high-speed CMOS octal D-type flip-flop manufactured by Texas Instruments. It features eight independent D-type flip-flops with positive-edge triggering and a master reset input. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports data rates up to 160 MHz. It is housed in a 20-pin Small Outline Integrated Circuit (SOIC) package with a width of 7.52 mm. The component is rated for an operating temperature range from -55 °C to +125 °C, ensuring reliability in demanding industrial environments.

Feature Summary

• Octal architecture providing eight independent D-type flip-flops within a single integrated circuit
• Positive-edge clock triggering mechanism synchronized with the rising edge of the clock signal
• Master reset functionality that asynchronously clears all outputs to a low state
• High-speed CMOS technology enabling operation at frequencies up to 160 MHz

Applications

• Parallel-to-serial data conversion circuits
• Shift register configurations for data storage and transfer
• Register files in microprocessor-based systems
• Timing delay elements in digital logic sequences

Procurement Notes

Verify the specific suffix M against the manufacturer's official datasheet to confirm the exact package variant and tape-and-reel specifications. Ensure the procurement documentation explicitly states the operating temperature range and voltage limits to match system requirements. Cross-reference the ordering information with the latest Texas Instruments product change notices to avoid obsolete revisions.

Selection Notes

Select this component when an octal storage solution with high-speed performance is required. The ACT series offers faster propagation delays compared to standard HCT or AC families. Consider the 20-pin SOIC footprint for surface-mount assembly constraints. Validate that the system power supply remains stable within the 4.5 V to 5.5 V window to maintain signal integrity and timing margins.

Part Context

This part belongs to the Texas Instruments CD74ACT family of advanced CMOS logic devices. The ACT series bridges the performance gap between older AC and HC technologies, offering higher speed while maintaining compatibility with TTL inputs. The CD74ACT273 specifically addresses applications requiring multiple parallel data storage elements with synchronous control.

Replacement Considerations

CD74ACT273M96: Same octal D-type flip-flop function in a tape-and-reel SOIC-20 package variant.