MC74HCT273ANG

Flip Flops Overview

The MC74HCT273ANG is an octal D-type flip-flop manufactured by onsemi, belonging to the HCT logic series. It features eight positive-edge triggered D flip-flops with a common clock and asynchronous active-low master reset input. The device operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes a 20-pin DIP package for through-hole mounting. Key electrical characteristics include a propagation delay of 37 ns at 5 V with 50 pF load, and output drive capabilities of 4.8 mA for both high and low states. The component supports a wide operating temperature range from -40 °C to +85 °C.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type storage elements with a shared clock and reset control.

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• General-purpose register banks in digital systems
• Shift register implementations

Flip Flops Procurement Notes

Verify the specific suffix 'A' and package type 'NG' against the manufacturer's current datasheet to ensure compatibility with design requirements. Confirm moisture sensitivity level and reflow soldering profile parameters prior to assembly. Check for any recent product change notifications that may affect pinout or electrical specifications.

Flip Flops Selection Notes

Select this component when TTL-compatible inputs are required with CMOS performance levels. The HCT series ensures direct interfacing with standard TTL logic outputs without additional pull-up resistors. Consider the 20-pin DIP package for prototyping or applications requiring through-hole technology. Evaluate the 37 ns propagation delay against system timing constraints.

Flip Flops Part Context

This part belongs to the 74HCT273 family of octal D-type flip-flops. It is functionally compatible with other manufacturers' 74HCT273 devices, such as those from NXP or Texas Instruments, provided voltage and timing specifications align. The 'A' suffix typically denotes an enhanced version with improved speed or noise immunity compared to earlier revisions.

Flip Flops Replacement Considerations

MC74HCT273ADWR2G (SOIC-20 package)

Flip Flops FAQ

Is the master reset input synchronous or asynchronous?

The master reset input is asynchronous and active-low, forcing all outputs low independently of the clock signal.

What is the input logic level compatibility for the HCT series?

The HCT series inputs are compatible with standard TTL logic levels, allowing direct interface with TTL outputs.