Equivalent & Substitute Parts for 7130LA55TF

Part Overview

The 7130LA55TF is a dual-port asynchronous SRAM memory IC with 8Kbit capacity, organized as 1K x 8, manufactured by Renesas Electronics Corporation. This component operates at 55 ns access time and write cycle time, packaged in a 64-TQFP (10x10) surface mount configuration. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations. Substitute parts must maintain identical memory organization, interface type, and package specifications while potentially offering improved performance or compliance characteristics.

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	0°C ~ 70°C
Package Type	64-TQFP (10x10)
Mounting Type	Surface Mount
Moisture Sensitivity Level	MSL 3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the 7130LA55TF 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
64-TQFP (10x10) surface mount package
Supply voltage range (4.5V ~ 5.5V)
Operating temperature range (0°C ~ 70°C)
Moisture sensitivity level (MSL 3)

The 7130LA20TFG qualifies as a direct substitute based on full compliance with all mandatory parameters. Performance improvement through reduced access time and write cycle time (20 ns versus 55 ns) represents an upgrade path without functional incompatibility.

Parameter Comparison

Parameter	7130LA55TF (Main Part)	7130LA20TFG (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	20 ns
Write Cycle Time	55 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	64-TQFP (10x10)	64-TQFP (10x10)
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 7130LA20TFG is the qualified substitute for the 7130LA55TF. Selection criteria are based on the following factors:

Product Status: The 7130LA55TF is obsolete, while the 7130LA20TFG maintains active product status, ensuring long-term availability and supply chain continuity.

Compliance: The 7130LA20TFG achieves ROHS3 compliance, whereas the 7130LA55TF is non-compliant. For applications subject to RoHS regulations, the substitute part satisfies regulatory requirements.

Performance: The 7130LA20TFG provides superior performance with 20 ns access and write cycle times compared to 55 ns in the original part. This improvement is backward-compatible and does not introduce timing constraints in systems designed for the slower specification.

Functional Equivalence: Both parts maintain identical memory capacity, organization, interface type, package configuration, and electrical specifications, ensuring direct pin-for-pin and functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA20TFG be used as a direct replacement for the 7130LA55TF?

A: Yes. The 7130LA20TFG is functionally equivalent across all critical parameters: 8Kbit capacity, 1K x 8 organization, dual-port asynchronous SRAM technology, parallel interface, 64-TQFP package, and identical supply voltage and operating temperature ranges. The faster access time represents an upgrade with no compatibility issues.

Q: What is the primary reason to substitute the 7130LA55TF?

A: The 7130LA55TF is obsolete. The 7130LA20TFG provides an active, available alternative with identical functionality and improved performance characteristics.

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

A: No. Both parts use the 64-TQFP (10x10) surface mount package with identical pinout and mechanical specifications.

Q: Does the faster access time of the 7130LA20TFG affect system compatibility?

A: No. Faster access time is backward-compatible. Systems designed for 55 ns operation will function correctly with the 20 ns part without modification.

Q: What is the RoHS compliance difference?

A: The 7130LA55TF is RoHS non-compliant, while the 7130LA20TFG is ROHS3 compliant. For applications requiring RoHS certification, the substitute part satisfies regulatory requirements.

Q: Are the moisture sensitivity levels identical?

A: Yes. Both parts are classified as MSL 3 (168 Hours), requiring identical handling and storage protocols.

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