Equivalent & Substitute Parts for Renesas 7130LA55PF

Part Overview

The Renesas 7130LA55PF is an 8Kbit dual-port asynchronous SRAM with parallel interface, housed in a 64-TQFP package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing system support and new designs. The 55 ns access time and 1K x 8 memory organization define its functional role in legacy applications requiring volatile parallel memory storage.

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	55 ns
Write Cycle Time	55 ns
Voltage Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package	64-TQFP (14x14)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution of the 7130LA55PF is determined by strict equivalence across the following parameters:

Memory capacity: 8Kbit (1K x 8 organization)
Memory type: Volatile SRAM with dual-port asynchronous architecture
Interface: Parallel
Package: 64-TQFP (14x14)
Voltage supply range: 4.5V ~ 5.5V
Operating temperature: 0°C ~ 70°C
Mounting: Surface Mount

The 7130LA20PFG qualifies as a direct substitute because it maintains identical memory capacity, organization, technology, interface, package, voltage, temperature, and mounting specifications. The reduced access time (20 ns versus 55 ns) represents improved performance and does not prevent substitution in applications designed for the original part.

Parameter Comparison

Parameter	7130LA55PF	7130LA20PFG	Compatibility
Memory Size	8Kbit	8Kbit	Identical
Memory Organization	1K x 8	1K x 8	Identical
Memory Type	Volatile SRAM	Volatile SRAM	Identical
Technology	SRAM - Dual Port, Asynchronous	SRAM - Dual Port, Asynchronous	Identical
Memory Interface	Parallel	Parallel	Identical
Access Time	55 ns	20 ns	Substitute faster
Write Cycle Time	55 ns	20 ns	Substitute faster
Voltage Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	Identical
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	Identical
Package	64-TQFP (14x14)	64-TQFP (14x14)	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Product Status	Obsolete	Active	Substitute active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Substitute compliant

Engineering Selection Recommendations

The 7130LA20PFG is the qualified substitute for the 7130LA55PF based on the following engineering criteria:

Functional equivalence is established through identical memory capacity, organization, technology, interface, package, voltage supply range, and operating temperature specifications. Both components are manufactured by Renesas Electronics Corporation and share the same base product number (7130LA).

Product status transition from obsolete to active status supports long-term supply chain continuity. The 7130LA20PFG is currently in active production with documented inventory availability.

Compliance improvement is achieved through ROHS3 compliance of the substitute part, whereas the original part is RoHS non-compliant. Both parts maintain REACH Unaffected status and identical ECCN and HTSUS classifications.

Performance enhancement through reduced access time (20 ns versus 55 ns) and write cycle time provides operational margin without requiring circuit redesign, as the substitute meets or exceeds all timing requirements of the original specification.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA20PFG be used as a direct replacement for the 7130LA55PF?

A: Yes. The 7130LA20PFG is a direct substitute. Both parts share identical memory capacity (8Kbit), organization (1K x 8), technology (dual-port asynchronous SRAM), interface (parallel), package (64-TQFP 14x14), voltage supply range (4.5V ~ 5.5V), operating temperature (0°C ~ 70°C), and mounting type (surface mount). No circuit modifications are required.

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

A: The 7130LA20PFG provides faster access time and write cycle time (20 ns) compared to the 7130LA55PF (55 ns). The substitute part also offers improved compliance status (ROHS3 compliant versus RoHS non-compliant) and active product status versus obsolete status.

Q: Are there any package or pinout differences?

A: No. Both parts use the 64-TQFP (14x14) package with identical pinout and mounting specifications. PCB layout and footprint remain unchanged.

Q: What is the voltage supply compatibility?

A: Both parts operate within the identical voltage supply range of 4.5V ~ 5.5V. Power supply circuits require no modification.

Q: Does the faster access time of the substitute part create any compatibility issues?

A: No. Faster access time represents improved performance. Systems designed for 55 ns access time will operate correctly with 20 ns access time components, as timing margins are maintained or improved.

Q: Are there any regulatory or compliance considerations?

A: The 7130LA20PFG offers improved compliance through ROHS3 certification. Both parts maintain identical REACH Unaffected status and ECCN/HTSUS classifications, supporting equivalent regulatory treatment in supply chain documentation.

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