Equivalent & Substitute Parts for Renesas 7130LA55JI

Part Overview

The Renesas 7130LA55JI is an 8Kbit dual-port asynchronous SRAM with parallel interface, housed in a 52-PLCC package. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs. The part operates within the 4.5V to 5.5V supply range with an access time of 55 ns and is suitable for applications requiring volatile memory with parallel data access.

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	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

Substitute Part Grouping Explanation

Substitution of the 7130LA55JI is determined by the following critical parameters:

Memory Capacity and Organization: Substitute parts must maintain 8Kbit capacity with 1K x 8 organization to ensure address and data bus compatibility.
Interface Type: Parallel interface is mandatory; no serial or other interface types are acceptable.
Dual-Port Asynchronous Architecture: The memory technology must remain SRAM dual-port asynchronous to preserve timing and operational characteristics.
Package and Pinout: The 52-PLCC (J-Lead) package must be maintained for mechanical and electrical compatibility with existing PCB layouts.
Voltage Supply Range: The 4.5V ~ 5.5V supply specification must be met or exceeded.
Operating Temperature Range: The -40°C ~ 85°C range must be supported.
Access Time: Substitute parts may have equal or faster access times; slower access times are not acceptable for direct substitution.

Parameter Comparison

Parameter	7130LA55JI (Main Part)	7130LA25JGI (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	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
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

The 7130LA25JGI is a direct functional substitute for the 7130LA55JI. Both parts share identical memory capacity, organization, interface type, package configuration, and voltage/temperature specifications. The 7130LA25JGI offers improved performance with a 25 ns access time compared to the 55 ns specification of the original part, making it suitable for applications with equal or tighter timing requirements.

The 7130LA25JGI holds Active product status, ensuring continued availability and manufacturing support. The part is ROHS3 compliant, meeting current environmental and regulatory requirements, whereas the 7130LA55JI is classified as RoHS non-compliant. Both parts maintain identical moisture sensitivity levels and are subject to the same handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA25JGI be used as a direct replacement for the 7130LA55JI?

A: Yes. Both parts are manufactured by Renesas Electronics Corporation and share identical memory specifications (8Kbit, 1K x 8 organization), dual-port asynchronous architecture, parallel interface, 52-PLCC package, voltage supply range (4.5V ~ 5.5V), and operating temperature range (-40°C ~ 85°C). The 7130LA25JGI has faster access and write cycle times (25 ns versus 55 ns), which is compatible with systems designed for the original part.

Q: Are there any package or pinout differences between these parts?

A: No. Both the 7130LA55JI and 7130LA25JGI use the 52-PLCC (J-Lead) 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 significance of the access time difference?

A: The 7130LA25JGI has a 25 ns access time compared to the 55 ns specification of the 7130LA55JI. This represents improved performance. Systems designed for the 55 ns part will operate correctly with the faster 25 ns substitute without timing violations.

Q: Does the 7130LA25JGI meet current compliance standards?

A: Yes. The 7130LA25JGI is ROHS3 compliant and holds Active product status. The 7130LA55JI is RoHS non-compliant and obsolete. For new designs and systems requiring current regulatory compliance, the 7130LA25JGI is the appropriate selection.

Q: Are moisture sensitivity levels identical?

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

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