Equivalent & Substitute Parts for 7130LA35CB

Part Overview

The 7130LA35CB is an 8Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation. This through-hole mounted memory IC operates at 35 ns access time with a 48-DIP package configuration. The product is classified as obsolete, making substitute components necessary for ongoing system support and new design implementations. The part operates across an extended temperature range of -55°C to 125°C with supply voltage tolerance of 4.5V to 5.5V.

Substiute Parts

7130LA35CB

Renesas Electronics CorporationIn Stock: 11237130LA35CB Datasheet

Current PartRFQ

7130LA20JG

Renesas Electronics CorporationIn Stock: 9327130LA20JG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 7130LA35CB is determined by the following critical parameters:

• Memory capacity (8Kbit) and organization (1K x 8)
• Dual-port asynchronous SRAM technology
• Parallel interface configuration
• Supply voltage compatibility (4.5V ~ 5.5V)
• Access time equal to or faster than 35 ns
• Pin-compatible or functionally equivalent packaging

The 7130LA20JG qualifies as a substitute based on matching memory size, organization, interface type, and voltage specifications. The faster 20 ns access time provides performance improvement over the original specification. However, package type differs (52-PLCC surface mount versus 48-DIP through hole), and operating temperature range is narrower (0°C ~ 70°C versus -55°C ~ 125°C).

Parameter Comparison

Engineering Selection Recommendations

The 7130LA20JG is an active product with ROHS3 compliance, addressing the obsolescence of the 7130LA35CB. Selection of this substitute requires evaluation of three critical factors:

Package and Mounting Compatibility: The 7130LA20JG uses 52-PLCC surface-mount packaging versus the original 48-DIP through-hole configuration. PCB redesign is necessary for mechanical and electrical integration.

Temperature Range Limitation: The substitute operates within 0°C to 70°C, narrower than the original -55°C to 125°C range. Applications requiring extended temperature operation must confirm the substitute meets thermal requirements.

Performance Enhancement: The 20 ns access time provides faster operation than the 35 ns specification, maintaining backward compatibility for timing-critical applications.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA20JG directly replace the 7130LA35CB without PCB modification?

A: No. The 7130LA20JG uses a different package type (52-PLCC surface mount) compared to the 48-DIP through-hole configuration of the 7130LA35CB. PCB redesign is required for mechanical mounting and electrical connection.

Q: Are the memory specifications identical between these parts?

A: Yes. Both parts are 8Kbit dual-port asynchronous SRAM with 1K x 8 organization and parallel interface. Supply voltage requirements (4.5V ~ 5.5V) are identical.

Q: What is the impact of the faster access time in the 7130LA20JG?

A: The 20 ns access time of the substitute is faster than the 35 ns specification of the original part. This provides performance improvement and maintains compatibility with systems designed for the original timing specification.

Q: Does the narrower operating temperature range of the 7130LA20JG affect substitution?

A: The 7130LA20JG operates from 0°C to 70°C, compared to the original -55°C to 125°C range. Applications requiring extended temperature operation must confirm the substitute meets specific thermal requirements before implementation.

Q: What is the significance of RoHS3 compliance in the 7130LA20JG?

A: The 7130LA20JG is ROHS3 compliant, meeting current environmental and regulatory standards. The original 7130LA35CB is RoHS non-compliant, making the substitute preferable for new designs and systems subject to RoHS requirements.