74HCT597D,653

Shift Registers Overview

The Nexperia 74HCT597D,653 is an 8-bit shift register with input flip-flops housed in a SO16 (SOT109-1) package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports temperatures from -40 °C to +125 °C. The device features positive edge-triggered clocks for both the storage and shift registers, along with direct load and clear inputs. Key electrical parameters include a propagation delay of up to 57 ns at 4.5 V and a maximum operating frequency of 75 MHz.

Shift Registers Feature Summary

• Includes an 8-bit parallel storage register feeding a serial-out shift register
• Features direct overriding load and clear functions for the shift register
• Inputs equipped with clamp diodes for interfacing with voltages exceeding VCC
• Provides high noise immunity and low power CMOS dissipation

Shift Registers Applications

• Serial-to-parallel data conversion circuits
• Parallel-to-serial data transmission systems
• Digital signal processing interfaces requiring data buffering
• Microcontroller peripheral expansion using limited I/O pins

Shift Registers Procurement Notes

Verify that the specific suffix

Shift Registers Selection Notes

Select this component when TTL-compatible logic levels are required for 8-bit serial data handling. The HCT series ensures compatibility with standard 5V TTL inputs while maintaining CMOS output drive capabilities. Ensure the design accommodates the specified temperature range and voltage limits for reliable operation in industrial environments.

Shift Registers Part Context

This part belongs to the 74HCT logic family, designed for high-speed CMOS applications with TTL-compatible inputs. It is manufactured by Nexperia USA Inc. and falls under the category of counter shift registers. The device is part of a broader portfolio of logic ICs intended for digital circuit miniaturization and routing simplification.

Shift Registers Replacement Considerations

Check for pin-compatible alternatives such as the 74HC597 if CMOS-level inputs are acceptable. Verify that any substitute maintains the same SO16 package dimensions and thermal characteristics to ensure mechanical fit without redesigning the PCB footprint.