Renesas Electronics 7130LA100J SRAM Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 7130LA100J is an 8Kbit dual-port asynchronous SRAM memory IC in a 52-PLCC package with 100 ns access time. This part is classified as obsolete, making substitute components necessary for new designs, repairs, or system upgrades. The 7130LA100J operates within the 4.5V to 5.5V supply voltage range and is suitable for applications requiring parallel memory interfaces with standard industrial temperature specifications.

Key Parameters

Parameter	Value
Memory Type	Volatile SRAM
Memory Format	Dual Port, Asynchronous
Memory Size	8Kbit
Memory Organization	1K x 8
Memory Interface	Parallel
Access Time	100 ns
Write Cycle Time	100 ns
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package Type	52-PLCC (J-Lead)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 7130LA100J is determined by strict equivalence across the following critical parameters:

Memory capacity and organization (8Kbit, 1K x 8 configuration)
Dual-port asynchronous SRAM technology
Parallel memory interface
52-PLCC package footprint and pinout compatibility
Supply voltage range (4.5V ~ 5.5V)
Operating temperature range (0°C ~ 70°C)

The 7130LA20JG qualifies as a direct substitute because it maintains identical memory specifications, package geometry, and electrical operating conditions. The primary distinction is improved access time performance (20 ns versus 100 ns), which represents a performance upgrade rather than a functional incompatibility. Both parts share the same base product number (7130LA) and are manufactured by Renesas Electronics Corporation.

Parameter Comparison

Parameter	7130LA100J (Main Part)	7130LA20JG (Substitute)
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Memory Type	Volatile SRAM	Volatile SRAM
Memory Format	Dual Port, Asynchronous	Dual Port, Asynchronous
Memory Size	8Kbit	8Kbit
Memory Organization	1K x 8	1K x 8
Memory Interface	Parallel	Parallel
Access Time	100 ns	20 ns
Write Cycle Time	100 ns	20 ns
Voltage Supply Range	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C
Package Type	52-PLCC (J-Lead)	52-PLCC (J-Lead)
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

The 7130LA20JG is the appropriate substitute for the obsolete 7130LA100J. Selection is justified on the following engineering grounds:

Product Status: The 7130LA100J is classified as obsolete, eliminating it as a viable option for new procurement. The 7130LA20JG maintains active product status with confirmed inventory availability.

Compliance and Certifications: The 7130LA20JG achieves ROHS3 compliance, whereas the 7130LA100J is non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification. For applications subject to RoHS regulations, the 7130LA20JG is the mandated choice.

Functional Equivalence: Both parts are manufactured by Renesas Electronics Corporation and share identical memory architecture, capacity, organization, and interface specifications. Pinout compatibility is assured through identical 52-PLCC packaging.

Performance Characteristics: The 7130LA20JG provides superior access time (20 ns) and write cycle time (20 ns) compared to the 7130LA100J (100 ns). This performance improvement is backward-compatible and does not introduce timing conflicts in systems designed for the slower original part.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA20JG be used as a direct replacement for the 7130LA100J in existing designs?

A: Yes. The 7130LA20JG is functionally equivalent and pin-compatible. The improved access time of 20 ns is faster than the original 100 ns specification, ensuring compatibility with timing requirements established for the 7130LA100J.

Q: Are the package dimensions identical between these parts?

A: Yes. Both the 7130LA100J and 7130LA20JG use the 52-PLCC (J-Lead) package with dimensions of 19.13 x 19.13 mm. PCB footprints and mounting requirements are identical.

Q: What is the significance of the RoHS compliance difference?

A: The 7130LA100J is RoHS non-compliant, while the 7130LA20JG is ROHS3 compliant. For applications subject to RoHS directives or customer requirements, the 7130LA20JG is the required selection.

Q: Do both parts operate at the same supply voltage?

A: Yes. Both parts operate within the 4.5V to 5.5V supply voltage range and maintain identical operating temperature specifications of 0°C to 70°C.

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

A: Both parts have a Moisture Sensitivity Level (MSL) of 3, with a floor life of 168 hours. Identical handling and storage protocols apply to both components.

Q: Is the 7130LA20JG available in the same packaging format as the original part?

A: The 7130LA100J is supplied in standard packaging, while the 7130LA20JG is supplied in tube packaging. Both use the 52-PLCC package type. Tube packaging is standard for active production parts and does not affect electrical or mechanical compatibility.

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