Equivalent & Substitute Parts for 7130SA100JI

Part Overview

The 7130SA100JI is an 8Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation in a 52-PLCC package. This memory IC operates with a 100 ns access time and write cycle time, designed for parallel memory applications requiring volatile storage. The part is classified as obsolete, making identification of compatible alternatives essential for system maintenance, repair, and redesign applications. Substitute parts must maintain identical memory capacity, organization, interface type, and package configuration while meeting current compliance and availability requirements.

Key Parameters

Parameter	Value
Memory Size	8Kbit
Memory Organization	1K x 8
Memory Type	Volatile SRAM
Technology	SRAM - Dual Port, Asynchronous
Memory Interface	Parallel
Access Time	100 ns
Write Cycle Time	100 ns
Voltage Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	52-PLCC (19.13x19.13)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution of the 7130SA100JI is determined by the following critical parameters that must remain constant:

Memory capacity: 8Kbit
Memory organization: 1K x 8 configuration
Technology: Dual-port asynchronous SRAM
Interface type: Parallel
Package: 52-PLCC (19.13x19.13)
Voltage supply range: 4.5V ~ 5.5V
Operating temperature range: -40°C ~ 85°C
Mounting type: Surface mount

The 7130LA25JGI qualifies as a direct substitute because it maintains all mandatory parameters. The primary difference is improved performance: the access time and write cycle time are reduced from 100 ns to 25 ns, representing a performance upgrade. This faster timing is backward-compatible with applications designed for the 7130SA100JI, as the substitute operates within the same electrical and mechanical constraints.

Parameter Comparison

Parameter	7130SA100JI (Main Part)	7130LA25JGI (Substitute)
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Memory Size	8Kbit	8Kbit
Memory Organization	1K x 8	1K x 8
Memory Type	Volatile SRAM	Volatile SRAM
Technology	SRAM - Dual Port, Asynchronous	SRAM - Dual Port, Asynchronous
Memory Interface	Parallel	Parallel
Access Time	100 ns	25 ns
Write Cycle Time	100 ns	25 ns
Voltage Supply	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	52-PLCC (19.13x19.13)	52-PLCC (19.13x19.13)
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

The 7130LA25JGI is the qualified substitute for the 7130SA100JI based on the following factors:

Product Status: The 7130SA100JI is obsolete, while the 7130LA25JGI is active. Active product status ensures continued availability, supply chain reliability, and manufacturer support.

Compliance: The 7130LA25JGI is ROHS3 compliant, whereas the 7130SA100JI is RoHS non-compliant. For applications subject to RoHS regulations or environmental compliance requirements, the substitute meets current standards.

Performance: The 7130LA25JGI provides superior performance with 25 ns access and write cycle times compared to the 100 ns specification of the main part. This performance improvement is fully backward-compatible with existing circuit designs.

Electrical and Mechanical Compatibility: Both parts share identical voltage supply ranges, operating temperature ranges, memory organization, package dimensions, and mounting type, ensuring direct functional replacement without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA25JGI replace the 7130SA100JI in existing designs?

A: Yes. The 7130LA25JGI is a direct substitute. It maintains identical memory capacity, organization, interface type, package configuration, voltage supply range, and operating temperature range. The faster access time is backward-compatible with applications designed for the 7130SA100JI.

Q: What is the primary difference between these two parts?

A: The main difference is access time and write cycle time. The 7130SA100JI operates at 100 ns, while the 7130LA25JGI operates at 25 ns. The substitute is faster and meets current RoHS3 compliance standards, whereas the main part is obsolete and RoHS non-compliant.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 52-PLCC package with dimensions of 19.13 x 19.13 mm. No PCB layout modifications are required for substitution.

Q: Does the faster access time of the 7130LA25JGI affect circuit compatibility?

A: No. Faster access time does not create compatibility issues. Circuits designed for 100 ns operation will function correctly with a 25 ns component, as the substitute meets or exceeds all timing requirements of the original specification.

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

A: Both the 7130SA100JI and 7130LA25JGI have an MSL rating of 3 (168 Hours), indicating identical moisture handling and storage requirements.

Q: Is the 7130LA25JGI available in the same packaging format?

A: The 7130SA100JI is supplied in standard packaging, while the 7130LA25JGI is supplied in tube packaging. Both use the same 52-PLCC component package. Tube packaging is a standard distribution format and does not affect component functionality or compatibility.

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