Equivalent & Substitute Parts for 71024S15YGI

Part Overview

The 71024S15YGI is a 1Mbit asynchronous SRAM memory IC manufactured by Renesas Electronics Corporation, configured as 128K x 8 with parallel interface and 15 ns access time. This component is classified as obsolete, necessitating identification of active substitute parts that maintain electrical and mechanical compatibility for system integration and board-level replacement applications.

Substiute Parts

71024S15YGI

Renesas Electronics CorporationIn Stock: 235771024S15YGI Datasheet

Current PartRFQ

71024S15TYGI

Renesas Electronics CorporationIn Stock: 221871024S15TYGI Datasheet

MFR RecommendedRFQ

AS7C1024B-12JIN

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

MFR RecommendedRFQ

AS7C1025B-15JIN

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 71024S15YGI is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Memory capacity: 1Mbit
• Memory organization: 128K x 8
• Memory interface: Parallel
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Package type: 32-SOJ
• Mounting type: Surface Mount
• RoHS3 compliance
• MSL rating: 3 (168 Hours)

Secondary Consideration:

• Access time and write cycle time must be equal to or faster than 15 ns to ensure functional compatibility in timing-critical applications

The substitute parts identified below meet all primary criteria. Access time variations are noted for engineering evaluation based on specific application timing requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Recommended for Direct Replacement): 71024S15TYGI is the preferred substitute, manufactured by Renesas Electronics Corporation. This part maintains identical electrical specifications and timing characteristics as the obsolete 71024S15YGI while offering active product status and current manufacturing support. Both parts share the same base product number (71024S) and are packaged in tube format for production environments.

Secondary Substitutes (Functional Equivalents): AS7C1025B-15JIN and AS7C1024B-12JIN, both manufactured by Alliance Memory, Inc., provide functional equivalence with identical memory capacity, organization, and interface specifications. Both parts are active products with ROHS3 compliance and MSL rating 3 certification.

AS7C1024B-12JIN offers improved access time (12 ns versus 15 ns), providing timing margin for applications where faster memory performance is beneficial. This part is suitable for designs where the original 15 ns specification can accommodate faster memory without modification.

All substitute parts maintain compliance with ROHS3 and REACH requirements, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can AS7C1024B-12JIN replace 71024S15YGI in all applications? A: Yes. The AS7C1024B-12JIN meets all electrical and mechanical substitution criteria. The 12 ns access time is faster than the original 15 ns specification, providing timing compatibility for any application designed for the 71024S15YGI.

Q: What is the difference between 71024S15YGI and 71024S15TYGI? A: Both parts are manufactured by Renesas Electronics with identical electrical specifications, memory organization, and timing characteristics. The primary difference is product status: 71024S15YGI is obsolete, while 71024S15TYGI is active. The packaging format differs (standard versus tube), reflecting current manufacturing practices.

Q: Are all substitute parts pin-compatible with the original 71024S15YGI? A: All substitute parts use the 32-SOJ package type with identical pin configuration, ensuring direct board-level replacement without layout modification.

Q: Do substitute parts meet the same compliance requirements as the original? A: Yes. All identified substitutes are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original 71024S15YGI.

Q: Which substitute should be selected for new designs? A: For new designs, 71024S15TYGI or AS7C1025B-15JIN are recommended as they maintain the original 15 ns timing specification. AS7C1024B-12JIN is suitable if faster memory performance is acceptable within the design constraints.

Q: Are there any package or mounting differences between substitutes? A: All substitutes use surface mount technology with 32-SOJ packaging. Packaging format (tube versus standard) may vary by supplier but does not affect electrical or mechanical compatibility.