Equivalent & Substitute Parts for 71024S15YG

Part Overview

The Renesas Electronics Corporation 71024S15YG is a 1Mbit asynchronous SRAM with parallel interface, 15 ns access time, and 32-SOJ packaging. This part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing system support and new designs. Substitute parts maintain core electrical specifications while offering improved availability and active product status.

Substiute Parts

71024S15YG

Renesas Electronics CorporationIn Stock: 109471024S15YG Datasheet

Current PartRFQ

71024S15TYG

Renesas Electronics CorporationIn Stock: 361971024S15TYG Datasheet

MFR RecommendedRFQ

AS7C1024B-12JCN

Alliance Memory, Inc.In Stock: 1502AS7C1024B-12JCN Datasheet

MFR RecommendedRFQ

AS7C1024B-12JIN

Alliance Memory, Inc.In Stock: 1163AS7C1024B-12JIN Datasheet

MFR RecommendedRFQ

AS7C1024B-15JCN

Alliance Memory, Inc.In Stock: 663AS7C1024B-15JCN Datasheet

MFR RecommendedRFQ

AS7C1024B-20JCN

Alliance Memory, Inc.In Stock: 1620AS7C1024B-20JCN Datasheet

MFR RecommendedRFQ

AS7C1025B-12JCN

Alliance Memory, Inc.In Stock: 1001AS7C1025B-12JCN Datasheet

MFR RecommendedRFQ

AS7C1025B-15JCN

Alliance Memory, Inc.In Stock: 5653AS7C1025B-15JCN Datasheet

MFR RecommendedRFQ

AS7C1025B-15JIN

Alliance Memory, Inc.In Stock: 802AS7C1025B-15JIN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Memory capacity (1Mbit) and organization (128K x 8)
• Parallel interface architecture
• Supply voltage range (4.5V ~ 5.5V)
• Package type (32-SOJ) and physical dimensions
• RoHS3 compliance and MSL rating
• Access time and write cycle time specifications

Substitute parts are grouped into two categories based on access time performance:

Category A: 15 ns Access Time (Direct Equivalents) Parts with 15 ns specifications maintain identical timing characteristics to the original 71024S15YG.

Category B: 12 ns Access Time (Enhanced Performance) Parts with 12 ns specifications provide faster access times and are electrically compatible with systems designed for 15 ns operation.

Category C: 20 ns Access Time (Relaxed Timing) Parts with 20 ns specifications operate within acceptable timing margins for systems tolerant of slower access times.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 71024S15TYG The Renesas 71024S15TYG is the manufacturer's active replacement for the obsolete 71024S15YG. It maintains identical electrical specifications and timing characteristics. The only difference is package width (7.62mm vs 10.16mm), which does not affect electrical compatibility. This part carries ROHS3 compliance and active product status with substantial inventory availability (3522 units).

Secondary Recommendation: AS7C1025B-15JCN The Alliance Memory AS7C1025B-15JCN provides direct electrical equivalence with 15 ns access time and matching supply voltage and temperature specifications. This part offers the highest inventory availability (5599 units) among substitute options and maintains ROHS3 compliance. Package dimensions are identical to the original 71024S15YG.

Alternative for Extended Temperature Range: AS7C1024B-12JIN or AS7C1025B-15JIN For applications requiring extended operating temperature range (-40°C to 85°C), the AS7C1024B-12JIN or AS7C1025B-15JIN provide this capability while maintaining 1Mbit capacity and parallel interface. The AS7C1024B-12JIN offers enhanced 12 ns access time performance.

Performance Enhancement Option: AS7C1024B-12JCN or AS7C1025B-12JCN For designs tolerant of faster access times, the 12 ns variants (AS7C1024B-12JCN or AS7C1025B-12JCN) provide improved performance margins while maintaining full electrical compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can AS7C1024B-20JCN be used as a substitute for 71024S15YG? A: The AS7C1024B-20JCN has 20 ns access time, which is slower than the original 15 ns specification. This part is suitable only for applications with relaxed timing requirements that can accommodate the additional 5 ns delay.

Q: What is the difference between 71024S15YG and 71024S15TYG? A: Both parts are Renesas 1Mbit SRAM with identical electrical specifications and 15 ns access time. The primary difference is package width: 71024S15YG uses 10.16mm width while 71024S15TYG uses 7.62mm width. The 71024S15TYG is the active product with superior availability.

Q: Are AS7C1024B and AS7C1025B variants interchangeable? A: Yes. Both AS7C1024B and AS7C1025B series maintain identical memory capacity (1Mbit), organization (128K x 8), parallel interface, and electrical specifications. They differ only in manufacturer part numbering and internal design variants, with no functional impact on system operation.

Q: Which substitute part has the best availability? A: The AS7C1025B-15JCN offers the highest inventory level at 5599 units, providing reliable supply for production requirements.

Q: Can 12 ns parts replace 15 ns parts? A: Yes. The 12 ns access time is faster than the 15 ns specification, making these parts electrically compatible with systems designed for 15 ns operation. They provide improved performance margins.

Q: What is the significance of the JCN and JIN suffixes? A: The suffix indicates operating temperature range. JCN denotes 0°C to 70°C commercial temperature range, while JIN denotes -40°C to 85°C industrial temperature range. Selection depends on application temperature requirements.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL rating 3 (168 hours), matching the environmental and handling requirements of the original 71024S15YG.