Equivalent & Substitute Parts for 7130LA55J8

Part Overview

The 7130LA55J8 is an 8Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation in a 52-PLCC package. This part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs. The part operates with a 55 ns access time and requires a 4.5V to 5.5V supply voltage.

Substiute Parts

7130LA55J8

Renesas Electronics CorporationIn Stock: 10137130LA55J8 Datasheet

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7130LA20JG8

Renesas Electronics CorporationIn Stock: 9077130LA20JG8 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7130LA55J8 is determined by the following critical parameters:

• Memory capacity (8Kbit) and organization (1K x 8) must remain identical
• Dual-port asynchronous SRAM technology is required
• Parallel memory interface is mandatory
• Package type must be 52-PLCC (J-Lead) for mechanical and electrical compatibility
• Supply voltage range 4.5V ~ 5.5V must be maintained
• Operating temperature range 0°C ~ 70°C must be supported

The 7130LA20JG8 qualifies as a direct substitute because it maintains all critical parameters while offering improved performance characteristics. The primary difference is the reduced access time (20 ns versus 55 ns), which represents a performance upgrade rather than a functional change.

Parameter Comparison

Engineering Selection Recommendations

The 7130LA20JG8 is the appropriate substitute for the 7130LA55J8 based on the following factors:

• The substitute part maintains identical memory capacity, organization, and interface specifications
• The 7130LA20JG8 is classified as active product status, ensuring continued availability and supply chain support
• ROHS3 compliance of the substitute part aligns with current environmental and regulatory standards, whereas the original part is RoHS non-compliant
• The improved access time (20 ns) provides performance headroom without introducing compatibility issues
• Both parts share identical supply voltage requirements and operating temperature ranges
• Package and mounting specifications are identical, enabling direct board-level replacement

Frequently Asked Questions (FAQ)

Q: Can the 7130LA20JG8 be used as a direct replacement for the 7130LA55J8?

A: Yes. Both parts are 8Kbit dual-port asynchronous SRAMs with identical memory organization (1K x 8), parallel interface, supply voltage range (4.5V ~ 5.5V), operating temperature range (0°C ~ 70°C), and 52-PLCC package configuration. The 7130LA20JG8 offers faster access time (20 ns versus 55 ns), which is a performance improvement.

Q: What is the primary reason for substitution?

A: The 7130LA55J8 is classified as obsolete. The 7130LA20JG8 is an active product with equivalent functionality and improved specifications, ensuring long-term availability and supply chain continuity.

Q: Are there any compliance differences between these parts?

A: Yes. The 7130LA20JG8 is ROHS3 compliant, while the 7130LA55J8 is RoHS non-compliant. This makes the substitute part suitable for applications requiring environmental compliance.

Q: Will the faster access time of the 7130LA20JG8 affect system operation?

A: No. Faster access time is a performance enhancement. Systems designed for the 55 ns part will operate correctly with the 20 ns part without modification.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 52-PLCC (J-Lead) package with dimensions of 19.13 x 19.13 mm, enabling direct board-level substitution without layout changes.

Q: What is the moisture sensitivity level for both parts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 3, requiring storage and handling within 168-hour exposure limits to prevent moisture absorption.