Renesas Electronics 7130SA55PF8 SRAM Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 7130SA55PF8 is an 8Kbit dual-port asynchronous SRAM with parallel interface, organized as 1K x 8, housed in a 64-TQFP package. This component operates at 55 ns access time with supply voltage range of 4.5V to 5.5V and is rated for 0°C to 70°C operating temperature. The part is currently classified as obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring this memory architecture.

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	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package Type	64-TQFP (14x14)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the 7130SA55PF8 is determined by the following critical parameters:

Memory capacity (8Kbit) and organization (1K x 8) must remain identical
Dual-port asynchronous SRAM architecture must be maintained
Parallel interface configuration must match
Package type must be 64-TQFP (14x14) for mechanical and electrical compatibility
Supply voltage range must encompass or match 4.5V ~ 5.5V
Operating temperature range must support 0°C ~ 70°C minimum
Access time and write cycle time may be equal to or faster than the original specification

The Renesas Electronics 7130LA20PFG8 meets all substitution criteria, offering improved performance characteristics while maintaining full functional and mechanical compatibility.

Parameter Comparison

Parameter	7130SA55PF8 (Original)	7130LA20PFG8 (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	20 ns
Write Cycle Time	55 ns	20 ns
Voltage Supply	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C
Package Type	64-TQFP (14x14)	64-TQFP (14x14)
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 7130LA20PFG8 is the direct substitute for the obsolete 7130SA55PF8. Selection of this part is based on the following engineering factors:

The substitute maintains identical memory capacity, organization, and interface specifications
Pin-compatible 64-TQFP package ensures direct PCB replacement without layout modification
Identical supply voltage and operating temperature ranges guarantee system compatibility
Faster access time (20 ns versus 55 ns) provides performance improvement with no functional impact
Active product status ensures long-term availability and supply chain continuity
ROHS3 compliance of the substitute addresses environmental and regulatory requirements not met by the obsolete original part
Both parts share identical moisture sensitivity classification, requiring equivalent handling procedures

Frequently Asked Questions (FAQ)

Q: Can the 7130LA20PFG8 directly replace the 7130SA55PF8 on existing PCBs?

A: Yes. Both parts use identical 64-TQFP (14x14) packaging with matching pinout. No PCB modifications are required for mechanical or electrical substitution.

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

A: The 7130LA20PFG8 offers faster memory access and write cycle times (20 ns versus 55 ns). Both parts are functionally equivalent 8Kbit dual-port asynchronous SRAMs with identical memory organization and interface specifications.

Q: Why is the original part classified as obsolete?

A: The 7130SA55PF8 is no longer in active production. The 7130LA20PFG8 represents the current active equivalent from Renesas Electronics Corporation.

Q: Are there any supply voltage or temperature range differences?

A: No. Both parts operate across identical supply voltage (4.5V ~ 5.5V) and temperature ranges (0°C ~ 70°C).

Q: Does the substitute part meet current environmental compliance standards?

A: The 7130LA20PFG8 is ROHS3 compliant, whereas the original 7130SA55PF8 is RoHS non-compliant. Both parts are REACH unaffected and classified under ECCN EAR99.

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

A: Both the 7130SA55PF8 and 7130LA20PFG8 are classified as MSL 3, requiring protection from moisture exposure for 168 hours maximum before soldering.

Q: Can the faster access time of the substitute cause any compatibility issues?

A: No. Faster memory access time is backward compatible. Systems designed for 55 ns access time operate correctly with 20 ns memory without modification.

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