CD74HCT574M96

Overview

The CD74HCT574M96 is an octal D-type flip-flop manufactured by Harris Corporation, belonging to the HCT logic series. It features positive edge triggering and provides true outputs with three-state capability. The device is designed for high-speed CMOS applications and utilizes a 20-pin Small Outline Package (SOP) with a width of 0.4 inches. It operates within a supply voltage range of 4.5V to 5.5V and supports a maximum operating frequency of 20 MHz under nominal conditions. The component is rated for operation across an extended temperature range from -55°C to +125°C.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single package
• Positive edge-triggered data latching mechanism for synchronous circuit control
• Three-state output drivers enabling direct bus line interfacing and system multiplexing

Applications

• High-speed digital data storage and buffering systems
• Parallel-to-serial data conversion circuits
• Register arrays within microprocessor-based architectures

Procurement Notes

Verify that the specific part number CD74HCT574M96 corresponds to the Harris Corporation manufacturing origin rather than Texas Instruments, as both entities have produced this component type. Confirm compliance requirements regarding RoHS status, as historical Harris versions may not meet current environmental standards. Ensure the SOP20 package dimensions match the design footprint specifications before finalizing procurement orders.

Selection Notes

Select this component when designing synchronous logic circuits requiring octal data retention with high noise immunity provided by the HCT series. The three-state outputs are essential for connecting multiple devices to shared data buses without electrical contention. Consider the 20-pin SOP package constraints for PCB layout density and thermal management capabilities within the specified industrial temperature range.

Part Context

This component belongs to the standard 74HCT logic family, which bridges TTL input levels with CMOS output performance. The 'CD' prefix typically denotes commercial grade availability, while the 'M96' suffix identifies the specific plastic small outline package variant. This series was widely utilized in legacy computing and industrial control systems prior to modern low-voltage logic transitions.

Replacement Considerations

Public confirmed substitute part numbers include CD74HC574M96 and CD74HCT574M96E4.