74HC594DB,112 Equivalent & Substitute Parts

Part Overview

The 74HC594DB,112 is an 8-bit shift register logic IC manufactured by Nexperia USA Inc., designed for serial-to-parallel and serial data conversion applications. This component features a 16-SSOP surface mount package with push-pull output configuration and operates across a 2V to 6V supply voltage range.

The 74HC594DB,112 is classified as obsolete. Identifying suitable substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and system maintenance.

Substiute Parts

74HC594DB,112

Nexperia USA Inc.In Stock: 105374HC594DB,112 Datasheet

Current PartRFQ

74HC594PWJ

Nexperia USA Inc.In Stock: 119174HC594PWJ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC594DB,112 is determined by the following critical parameters:

• Logic Function: Shift register with 8-bit capacity and serial-to-parallel conversion capability
• Electrical Specifications: Supply voltage range of 2V to 6V and operating temperature range of -40°C to 125°C
• Package Compatibility: Surface mount technology with 16-pin configuration
• Compliance Standards: ROHS3 compliance and MSL Level 1 rating

The 74HC594PWJ meets all substitution criteria. While it uses a 16-TSSOP package (0.173", 4.40mm Width) instead of the 16-SSOP package, both packages maintain identical pin counts and electrical functionality. The TSSOP variant represents an active product status alternative within the same 74HC594 base product family, ensuring continued component availability and manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The 74HC594PWJ is the primary substitute for the obsolete 74HC594DB,112. Both components share identical electrical specifications, functional capabilities, and regulatory compliance certifications. The 74HC594PWJ maintains active product status with Nexperia USA Inc., ensuring long-term availability and manufacturing support.

The transition from 16-SSOP to 16-TSSOP packaging represents a standard industry evolution toward more compact surface mount solutions. Both packages maintain identical pin configurations and electrical performance characteristics. PCB layout modifications may be required to accommodate the reduced package width of the TSSOP variant.

Frequently Asked Questions (FAQ)

Q: Can the 74HC594PWJ directly replace the 74HC594DB,112 without circuit modifications?

A: The 74HC594PWJ provides electrical and functional equivalence. However, the package footprint differs between 16-SSOP and 16-TSSOP, requiring PCB layout adjustments. Pin configuration and electrical performance remain identical.

Q: What is the primary reason for substitution?

A: The 74HC594DB,112 is classified as obsolete. The 74HC594PWJ is an active product offering from the same manufacturer within the 74HC594 family, ensuring continued component availability.

Q: Are there compliance or certification differences between these parts?

A: Both components maintain ROHS3 compliance, MSL Level 1 rating, REACH Unaffected status, and EAR99 export classification. No compliance differences exist.

Q: What is the significance of the package width difference?

A: The 16-TSSOP package (4.40mm width) is more compact than the 16-SSOP package (5.30mm width). This requires PCB footprint redesign but does not affect electrical functionality or pin count.

Q: Does the output type difference affect substitution?

A: The 74HC594DB,112 specifies push-pull output, while the 74HC594PWJ specifies non-inverted output. Both configurations support the serial-to-parallel shift register function within the specified voltage and temperature operating ranges.