70V27L15PF Equivalent & Substitute Parts

Part Overview

The 70V27L15PF is a 512Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation, packaged in a 100-TQFP (14x14mm) surface-mount configuration. This memory IC operates at 3V to 3.6V supply voltage with a 15ns access time and write cycle time, supporting 32K x 16 memory organization over a parallel interface. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs.

Key Parameters

Parameter	Value
Memory Type	Volatile SRAM
Memory Format	Dual Port, Asynchronous
Memory Size	512Kbit
Memory Organization	32K x 16
Memory Interface	Parallel
Access Time	15 ns
Write Cycle Time	15 ns
Voltage Supply Range	3V to 3.6V
Operating Temperature	0°C to 70°C
Package Type	100-LQFP (100-TQFP 14x14mm)
Mounting Type	Surface Mount
Moisture Sensitivity Level	MSL 3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the 70V27L15PF is determined by strict equivalence across the following critical parameters:

Memory capacity and organization (512Kbit, 32K x 16)
Dual-port asynchronous SRAM technology
Parallel interface configuration
Access and write cycle timing (15ns)
Supply voltage range (3V to 3.6V)
Operating temperature range (0°C to 70°C)
Package footprint and pinout (100-LQFP)
Moisture sensitivity classification (MSL 3)

The 70V27L15PFG meets all these criteria and is identified as a direct substitute. The primary distinction between the main part and its substitute is product status and compliance certification.

Parameter Comparison

Parameter	70V27L15PF	70V27L15PFG
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Memory Size	512Kbit	512Kbit
Memory Organization	32K x 16	32K x 16
Memory Technology	SRAM - Dual Port, Asynchronous	SRAM - Dual Port, Asynchronous
Access Time	15 ns	15 ns
Write Cycle Time	15 ns	15 ns
Voltage Supply	3V to 3.6V	3V to 3.6V
Operating Temperature	0°C to 70°C	0°C to 70°C
Package / Case	100-LQFP	100-LQFP
Supplier Device Package	100-TQFP (14x14)	100-TQFP (14x14)
Moisture Sensitivity Level	MSL 3 (168 Hours)	MSL 3 (168 Hours)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging	Not specified	Tray

Engineering Selection Recommendations

The 70V27L15PFG is the direct functional equivalent of the 70V27L15PF. Selection between these parts should be based on the following factors:

Product Status: The 70V27L15PF is obsolete, while the 70V27L15PFG maintains active production status. For new designs and long-term system support, the 70V27L15PFG is the appropriate choice.

Compliance Certification: The 70V27L15PFG carries ROHS3 compliance certification, whereas the 70V27L15PF is RoHS non-compliant. Systems subject to RoHS regulatory requirements must use the 70V27L15PFG.

Availability and Supply Chain: The 70V27L15PFG has higher inventory availability (1575 Pcs) compared to the 70V27L15PF (741 Pcs), supporting consistent procurement for production environments.

Electrical and Mechanical Compatibility: Both parts are electrically and mechanically identical across all specified parameters, including memory capacity, timing characteristics, voltage supply, temperature range, and package configuration. Direct substitution is supported without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the 70V27L15PFG replace the 70V27L15PF in existing designs?

A: Yes. The 70V27L15PFG is electrically and mechanically equivalent to the 70V27L15PF. Both parts share identical memory capacity (512Kbit), organization (32K x 16), access timing (15ns), supply voltage range (3V to 3.6V), operating temperature range (0°C to 70°C), and package footprint (100-LQFP). Direct substitution requires no circuit modifications.

Q: What is the difference between the 70V27L15PF and 70V27L15PFG?

A: The primary differences are product status and compliance certification. The 70V27L15PF is obsolete and RoHS non-compliant, while the 70V27L15PFG is in active production and ROHS3 compliant. Packaging differs as well, with the 70V27L15PFG supplied in trays. All electrical and mechanical specifications are identical.

Q: Are there any timing or performance differences between these parts?

A: No. Both parts specify identical access time (15ns) and write cycle time (15ns), with the same supply voltage range (3V to 3.6V) and operating temperature range (0°C to 70°C). Performance characteristics are equivalent.

Q: What is the significance of the MSL 3 moisture sensitivity rating?

A: MSL 3 indicates a moisture sensitivity level requiring storage at ≤30% relative humidity and a floor life of 168 hours after exposure to higher humidity conditions. Both the 70V27L15PF and 70V27L15PFG carry this same MSL 3 classification, requiring identical handling and storage protocols.

Q: Is the 100-TQFP package the same as the 100-LQFP package?

A: Yes. The 100-TQFP (14x14mm) and 100-LQFP designations refer to the same physical package configuration. Both parts use this identical surface-mount package with 100 pins in a 14x14mm footprint, ensuring mechanical compatibility on PCBs.

Q: Why should I choose the 70V27L15PFG over the 70V27L15PF?

A: The 70V27L15PFG is the recommended choice for new designs and ongoing production due to active product status, ROHS3 compliance certification, and higher inventory availability. The 70V27L15PF is obsolete and should be replaced in new applications.

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