Equivalent & Substitute Parts for Renesas 7130SA12PDG SRAM Memory IC

Part Overview

The Renesas 7130SA12PDG 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 equivalent or substitute parts becomes necessary for system maintenance, repair, and legacy equipment support. The 7130SA12PDG operates within the 4.5V to 5.5V supply voltage range with a 12 ns access time and 12 ns write cycle time, serving applications requiring parallel memory interface architecture.

Substiute Parts

7130SA12PDG

Renesas Electronics CorporationIn Stock: 10537130SA12PDG Datasheet

Current PartRFQ

7130LA20JG

Renesas Electronics CorporationIn Stock: 9327130LA20JG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7130SA12PDG is determined by the following critical parameters that must remain constant or compatible:

Core Functional Parameters (Must Match):

• 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 Parameters (May Vary Within Acceptable Limits):

• Access Time: Can be equal to or faster than 12 ns
• Write Cycle Time: Can be equal to or faster than 12 ns

Physical Parameters (May Differ):

• Mounting Type: Can differ (through-hole to surface-mount conversion possible with appropriate adapter solutions)
• Package Type: Can differ if pin configuration and electrical characteristics remain compatible

The substitute part 7130LA20JG maintains identical memory capacity, organization, interface type, and voltage specifications. The access time and write cycle time of 20 ns represent a slower performance specification compared to the original 12 ns, which is acceptable for most legacy applications where the original component was used.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement in Through-Hole Applications:

The 7130SA12PDG is obsolete with limited inventory availability. The 7130LA20JG is the manufacturer-recommended substitute and maintains active product status with current manufacturing support. This substitute is suitable for applications where the following conditions are met:

• The application can tolerate the increased access time and write cycle time from 12 ns to 20 ns
• The circuit board design can accommodate surface-mount to through-hole conversion, or the PCB can be redesigned for 52-PLCC surface-mount packaging
• The supply voltage remains within the 4.5V to 5.5V range
• Operating temperature remains within 0°C to 70°C

Compliance and Certification Status:

The 7130LA20JG substitute carries RoHS3 compliance certification and REACH unaffected status, indicating compliance with current environmental and hazardous substance regulations. The original 7130SA12PDG compliance status was not provided in the available documentation.

Inventory and Availability:

The 7130SA12PDG has 1036 pieces in stock as new original inventory. The 7130LA20JG substitute has 868 pieces in stock as new original inventory with active product status, ensuring continued availability for future procurement.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA20JG directly replace the 7130SA12PDG without circuit modifications?

A: The 7130LA20JG is electrically compatible in terms of memory capacity, organization, interface type, and voltage specifications. However, physical replacement requires addressing the package difference: the original uses 48-DIP through-hole packaging while the substitute uses 52-PLCC surface-mount packaging. Direct socket replacement is not possible without adapter hardware or PCB redesign.

Q: What is the impact of the increased access time from 12 ns to 20 ns?

A: The 7130LA20JG has a 20 ns access time compared to the 7130SA12PDG's 12 ns access time. This 8 ns difference represents slower memory performance. Applications operating at clock frequencies where the original 12 ns specification was marginal may experience timing violations. Circuit timing analysis is required to confirm compatibility.

Q: Are there other substitute options beyond the 7130LA20JG?

A: The 7130LA20JG documentation indicates additional substitutes: 7130LA25JGI and 7140LA20JG. These parts share the same base product family (7130LA and 7140LA series) and maintain the same core memory specifications. Detailed parameter comparison with these alternatives would require their complete technical specifications.

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

A: The 7130LA20JG carries an MSL rating of 3 (168 Hours), indicating it requires controlled moisture exposure during storage and handling. This specification applies to surface-mount components and requires appropriate storage conditions and reflow soldering procedures.

Q: Is the 7130LA20JG suitable for new design applications?

A: The 7130LA20JG carries active product status, indicating current manufacturing support. It is suitable for new design applications requiring 8Kbit dual-port asynchronous SRAM with parallel interface in the 4.5V to 5.5V supply range. However, modern applications typically utilize larger capacity memory devices; this component is primarily applicable to legacy system maintenance and reproduction.