Equivalent & Substitute Parts for Renesas 7130SA17PDG SRAM Memory IC

Part Overview

The Renesas 7130SA17PDG is an 8Kbit dual-port asynchronous SRAM memory integrated circuit in 48-PDIP through-hole packaging. This component is classified as obsolete product status. Due to its obsolete designation, locating original stock becomes increasingly difficult. Identifying equivalent substitute parts with compatible electrical and mechanical parameters is essential for system maintenance, repair, and legacy equipment support.

Substiute Parts

7130SA17PDG

Renesas Electronics CorporationIn Stock: 11977130SA17PDG Datasheet

Current PartRFQ

7130LA20JG

Renesas Electronics CorporationIn Stock: 9327130LA20JG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7130SA17PDG is determined by the following critical parameters:

Core Electrical Compatibility Requirements:

• Memory Type: Volatile SRAM
• Memory Format: Dual Port, Asynchronous
• Memory Size: 8Kbit
• Memory Organization: 1K x 8
• Memory Interface: Parallel
• Voltage Supply Range: 4.5V ~ 5.5V
• Operating Temperature Range: 0°C ~ 70°C

Performance Considerations:

• Access Time and Write Cycle Time must not exceed the original specification (17 ns) to maintain system timing requirements

Physical Compatibility:

• Mounting Type: Through Hole or Surface Mount (with appropriate adapter consideration)
• Package footprint must accommodate board layout constraints

The substitute part 7130LA20JG shares identical electrical core specifications (memory type, format, size, organization, interface, voltage, and temperature range) with the main part. The access time specification of 20 ns represents a marginal increase from 17 ns, which remains within acceptable tolerance for most legacy system applications. The primary difference is the package type transition from 48-PDIP through-hole to 52-PLCC surface-mount, requiring board-level integration assessment.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 7130SA17PDG is designated as obsolete, while the substitute 7130LA20JG maintains active product status from Renesas Electronics Corporation. Active status ensures continued availability and manufacturing support.

Compliance and Certification: The 7130LA20JG carries ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements. These certifications support long-term system compliance and supply chain sustainability.

Performance Timing: The 3 ns increase in access time and write cycle time (from 17 ns to 20 ns) falls within acceptable operational margins for legacy systems originally designed around the 7130SA17PDG specification. System timing analysis should confirm that the substitute's 20 ns specification does not violate critical path requirements.

Packaging and Integration: The transition from 48-PDIP through-hole to 52-PLCC surface-mount packaging requires board-level integration planning. Direct socket replacement is not possible without mechanical adapter solutions or PCB redesign. Organizations must evaluate whether through-hole mounting is mandatory for the application or whether surface-mount integration is feasible.

Inventory and Supply: The 7130LA20JG currently maintains 868 pieces in new original stock, providing immediate availability compared to the obsolete 7130SA17PDG with 1161 pieces remaining in inventory.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA20JG directly replace the 7130SA17PDG without any modifications?

A: Electrical substitution is valid based on core memory specifications. However, the package type differs (48-PDIP through-hole versus 52-PLCC surface-mount), requiring either mechanical adapter solutions or PCB redesign for physical integration.

Q: What is the significance of the 3 ns timing difference between the two parts?

A: The 7130LA20JG has a 20 ns access time and write cycle time compared to the 7130SA17PDG's 17 ns specification. This 3 ns variance must be evaluated against system timing requirements. For most legacy applications, this difference remains within acceptable operational margins, but critical timing paths should be analyzed.

Q: Are the voltage supply and operating temperature ranges identical?

A: Yes. Both parts operate within 4.5V to 5.5V supply voltage and 0°C to 70°C operating temperature range, ensuring electrical compatibility in this regard.

Q: What does the ROHS3 compliance on the 7130LA20JG indicate?

A: ROHS3 compliance indicates the substitute part meets Restriction of Hazardous Substances Directive requirements, restricting specific hazardous materials. This supports environmental compliance and long-term regulatory alignment.

Q: Is the 52-PLCC package physically larger than the 48-PDIP package?

A: Yes. The 52-PLCC measures 19.13mm x 19.13mm, while the 48-DIP measures 0.600 inches (15.24mm) in width. Board layout space and mounting considerations must be evaluated during integration planning.

Q: What is the Moisture Sensitivity Level (MSL) rating for the substitute part?

A: The 7130LA20JG carries an MSL rating of 3 (168 Hours), indicating standard moisture sensitivity handling requirements for surface-mount components during storage and assembly processes.

Q: Can both parts be used interchangeably in the same circuit board design?

A: Electrical interchangeability is confirmed for the specified parameters. Physical interchangeability requires mechanical adapter solutions or PCB redesign due to package differences. System designers must assess whether package-level modifications are acceptable for their application.