Equivalent & Substitute Parts for 7130LA55JI8

Part Overview

The 7130LA55JI8 is a dual-port asynchronous SRAM memory IC with 8Kbit capacity, organized as 1K x 8, manufactured by Renesas Electronics Corporation. This component operates with a 55 ns access time and write cycle time, housed in a 52-PLCC surface mount package. The part is classified as obsolete, making identification of suitable alternatives necessary for ongoing system support and new design implementations. Substitute parts must maintain electrical compatibility across memory capacity, interface type, voltage supply range, and thermal operating conditions while accommodating packaging and performance requirements.

Key Parameters

Parameter	Value
Memory Type	Volatile SRAM
Memory Format	SRAM - Dual Port, Asynchronous
Memory Size	8Kbit
Memory Organization	1K x 8
Memory Interface	Parallel
Access Time	55 ns
Write Cycle Time	55 ns
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	52-PLCC (J-Lead)
Mounting Type	Surface Mount
Moisture Sensitivity Level	MSL 3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the 7130LA55JI8 is determined by strict alignment across the following critical parameters:

Memory capacity and organization must remain constant at 8Kbit with 1K x 8 configuration to ensure address and data bus compatibility. The dual-port asynchronous SRAM technology and parallel interface are non-negotiable for functional equivalence. Voltage supply range of 4.5V ~ 5.5V and operating temperature range of -40°C ~ 85°C must be maintained or exceeded. The 52-PLCC surface mount package with J-Lead configuration is required for mechanical and electrical interconnection compatibility. Access time and write cycle time parameters define performance characteristics; substitutes with equal or faster timing are acceptable. Moisture sensitivity level MSL 3 and associated handling requirements must be preserved.

The 7130LA25JGI8 qualifies as a direct substitute based on these criteria, offering improved performance characteristics while maintaining all mandatory electrical and mechanical parameters.

Parameter Comparison

Parameter	7130LA55JI8 (Main Part)	7130LA25JGI8 (Substitute)
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Memory Type	Volatile SRAM	Volatile SRAM
Memory Format	SRAM - Dual Port, Asynchronous	SRAM - Dual Port, Asynchronous
Memory Size	8Kbit	8Kbit
Memory Organization	1K x 8	1K x 8
Memory Interface	Parallel	Parallel
Access Time	55 ns	25 ns
Write Cycle Time	55 ns	25 ns
Voltage Supply Range	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	52-PLCC (J-Lead)	52-PLCC (J-Lead)
Mounting Type	Surface Mount	Surface Mount
Moisture Sensitivity Level	MSL 3 (168 Hours)	MSL 3 (168 Hours)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The 7130LA25JGI8 is the qualified substitute for the 7130LA55JI8. Both parts share identical memory capacity, organization, interface type, voltage supply range, operating temperature range, and package configuration. The substitute offers superior performance with 25 ns access and write cycle times compared to the original 55 ns specification, providing enhanced speed margin for system operation.

The 7130LA25JGI8 carries Active product status, ensuring continued availability and manufacturing support, whereas the original part is classified as Obsolete. The substitute achieves ROHS3 compliance, meeting current environmental and regulatory requirements, while the original part is RoHS non-compliant. Both components maintain identical moisture sensitivity classification and handling requirements.

Selection of the 7130LA25JGI8 is appropriate for replacement applications, system redesigns, and new implementations requiring 8Kbit dual-port asynchronous SRAM with parallel interface in 52-PLCC surface mount packaging.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA25JGI8 directly replace the 7130LA55JI8 in existing designs?

A: Yes. Both parts maintain identical memory capacity (8Kbit), organization (1K x 8), dual-port asynchronous SRAM technology, parallel interface, voltage supply range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 52-PLCC package configuration. The substitute operates at faster timing specifications (25 ns versus 55 ns), which is compatible with systems designed for the original part.

Q: What are the key differences between these parts?

A: The primary differences are access time and write cycle time (25 ns for the substitute versus 55 ns for the original), product status (Active versus Obsolete), and RoHS compliance (ROHS3 Compliant versus non-compliant). All other electrical and mechanical parameters remain identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 52-PLCC (J-Lead) surface mount package with identical pinout and mechanical dimensions (19.13 x 19.13 mm). No PCB layout modifications are required for substitution.

Q: What is the impact of the faster access time on system compatibility?

A: Faster access time (25 ns) is backward compatible with designs specified for 55 ns operation. Systems will experience improved performance margins without requiring design changes.

Q: Are moisture sensitivity and handling requirements the same?

A: Yes. Both parts carry MSL 3 classification with 168-hour moisture sensitivity limits. Identical storage, handling, and reflow procedures apply to both components.

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