Renesas Electronics 7005L25PF SRAM Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 7005L25PF is a 64Kbit dual-port asynchronous SRAM memory IC in 64-TQFP packaging with 25 ns access time and parallel interface. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support, maintenance, and new design implementations. The part operates within a 4.5V to 5.5V supply voltage range and supports industrial temperature specifications from 0°C to 70°C.

Key Parameters

Parameter	Value
Memory Type	Volatile SRAM
Memory Format	Dual Port, Asynchronous
Memory Size	64Kbit
Memory Organization	8K x 8
Memory Interface	Parallel
Access Time	25 ns
Write Cycle Time	25 ns
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package Type	64-TQFP (14x14)
Mounting Type	Surface Mount
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the 7005L25PF is determined by the following critical parameters:

Memory capacity (64Kbit) and organization (8K x 8) must remain identical
Dual-port asynchronous SRAM technology must be maintained
Parallel interface configuration must be preserved
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 7005L15PFG qualifies as a direct substitute based on these criteria. It maintains identical memory capacity, organization, technology, interface, packaging, voltage specifications, and temperature range while providing improved performance through faster access and write cycle times (15 ns versus 25 ns).

Parameter Comparison

Parameter	7005L25PF (Main Part)	7005L15PFG (Substitute)
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Memory Type	Volatile SRAM	Volatile SRAM
Memory Format	Dual Port, Asynchronous	Dual Port, Asynchronous
Memory Size	64Kbit	64Kbit
Memory Organization	8K x 8	8K x 8
Memory Interface	Parallel	Parallel
Access Time	25 ns	15 ns
Write Cycle Time	25 ns	15 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 (14x14)	64-TQFP (14x14)
Mounting Type	Surface Mount	Surface Mount
MSL Rating	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The 7005L15PFG is the qualified substitute for the 7005L25PF based on the following engineering criteria:

Product Status: The 7005L25PF is obsolete, while the 7005L15PFG maintains active product status with confirmed inventory availability (912 pcs in stock). This ensures long-term supply chain reliability and support.

Compliance and Certifications: The 7005L15PFG achieves ROHS3 compliance, whereas the 7005L25PF is RoHS non-compliant. Both parts maintain identical REACH unaffected status and EAR99 ECCN classification. The substitute part meets modern regulatory requirements for electronic component procurement.

Performance Characteristics: The 7005L15PFG provides superior performance with 15 ns access and write cycle times compared to the 7005L25PF specification of 25 ns. This faster timing is backward compatible with designs requiring the original 25 ns specification, as the substitute operates within tighter timing margins.

Electrical and Mechanical Compatibility: All critical parameters remain identical between the main part and substitute, including memory capacity, organization, interface type, packaging, voltage supply range, and operating temperature specifications. Direct pin-for-pin and functional compatibility is established.

Frequently Asked Questions (FAQ)

Q: Can the 7005L15PFG be used as a direct replacement for the 7005L25PF in existing designs?

A: Yes. The 7005L15PFG maintains identical memory capacity (64Kbit), organization (8K x 8), dual-port asynchronous architecture, parallel interface, 64-TQFP packaging, voltage supply range (4.5V ~ 5.5V), and operating temperature range (0°C ~ 70°C). The faster access time (15 ns) is backward compatible with designs specified for 25 ns operation.

Q: What are the key differences between these two parts?

A: The primary differences are product status, compliance certification, and performance timing. The 7005L15PFG is an active product with ROHS3 compliance and 15 ns access/write cycle times, while the 7005L25PF is obsolete, RoHS non-compliant, and specified for 25 ns timing.

Q: Are there any package or pinout differences?

A: No. Both parts use identical 64-TQFP (14x14) surface mount packaging with the same pinout configuration. No PCB layout modifications are required for substitution.

Q: Does the faster access time of the 7005L15PFG affect system compatibility?

A: No. Faster access time is a performance enhancement that does not create compatibility issues. Systems designed for 25 ns operation will function correctly with the 15 ns substitute part.

Q: What is the MSL rating significance for these parts?

A: Both parts carry MSL rating 3 (168 Hours), indicating identical moisture sensitivity specifications. Storage and handling requirements remain unchanged between the main part and substitute.

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