74HC597N,652 Equivalent & Substitute Parts

Part Overview

The 74HC597N,652 is an 8-bit parallel-to-serial shift register manufactured by NXP USA Inc. in a 16-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The shift register converts parallel data inputs to serial output format, operating across a 2V to 6V supply voltage range with push-pull output configuration.

Substiute Parts

74HC597N,652

NXP USA Inc.In Stock: 95974HC597N,652 Datasheet

Current PartRFQ

CD74HC597E

Texas InstrumentsIn Stock: 5041CD74HC597E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC597N,652 is based on the following critical parameters that must remain consistent:

• Logic type: Shift Register (8-bit, single element)
• Output configuration: Push-Pull
• Supply voltage range: 2V ~ 6V
• Package format: 16-DIP (0.300", 7.62mm)
• Mounting method: Through Hole
• Base product series: 74HC

The CD74HC597E from Texas Instruments meets all substitution criteria. While the CD74HC597E supports an extended function capability (Parallel or Serial to Serial versus Parallel to Serial only) and broader operating temperature range (-55°C ~ 125°C), these represent functional enhancements rather than deviations. The core electrical and mechanical parameters remain aligned with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC597E is the direct functional equivalent for the obsolete 74HC597N,652. Both components share identical core specifications: 8-bit shift register architecture, push-pull output stage, 2V to 6V supply voltage compatibility, and 16-DIP through-hole packaging.

Selection of the CD74HC597E is supported by:

• Active product status with established supply chain availability
• ROHS3 compliance matching the original part
• REACH unaffected classification consistent with the original specification
• Extended operating temperature range (-55°C to 125°C) providing broader environmental tolerance
• Established Texas Instruments manufacturing and quality standards

The CD74HC597E is suitable for direct replacement in existing designs and recommended for new applications requiring 8-bit parallel-to-serial shift register functionality in 16-DIP format.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC597E directly replace the 74HC597N,652 in existing PCB designs?

A: Yes. Both components use identical 16-DIP (0.300", 7.62mm) through-hole packaging with matching pin configurations. No PCB layout modifications are required.

Q: What is the significance of the extended operating temperature range in the CD74HC597E?

A: The CD74HC597E operates from -55°C to 125°C compared to the 74HC597N,652 range of -40°C to 125°C. This extended lower temperature limit provides additional environmental margin for applications in cold-temperature environments, though both parts meet the standard -40°C to 125°C industrial range.

Q: Are there functional differences between parallel-to-serial and parallel-or-serial-to-serial operation?

A: The CD74HC597E supports both parallel-to-serial and serial-to-serial input configurations, while the 74HC597N,652 is specified for parallel-to-serial operation only. In applications using only parallel-to-serial functionality, both parts perform identically. The CD74HC597E provides additional operational flexibility without compromising compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 74HC597N,652 and CD74HC597E are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements.

Q: What packaging format is used for the CD74HC597E?

A: The CD74HC597E is supplied in 16-PDIP (Plastic Dual In-line Package) format, which is mechanically and electrically equivalent to the 16-DIP package of the original part. Both use 0.300" (7.62mm) row spacing suitable for standard through-hole PCB assembly.