Renesas Electronics 7005S20G SRAM Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 7005S20G is a 64Kbit dual-port asynchronous SRAM with parallel interface, organized as 8K x 8, packaged in a 68-pin PGA. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing system support. The 7005S20G operates with a 20 ns access time and write cycle time, suitable for applications requiring fast memory access within the 4.5V to 5.5V supply range and 0°C to 70°C operating temperature.

Substiute Parts

7005S20G

Renesas Electronics CorporationIn Stock: 7987005S20G Datasheet

Current PartRFQ

7005L35G

Renesas Electronics CorporationIn Stock: 7177005L35G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 7005S20G is determined by the following critical parameters that must remain constant:

• Memory capacity: 64Kbit
• Memory organization: 8K x 8
• Memory technology: Dual-port asynchronous SRAM
• Parallel interface configuration
• Package type: 68-BPGA (29.46x29.46)
• Mounting type: Through Hole
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: 0°C ~ 70°C

The 7005L35G qualifies as a direct substitute based on these parameters. The primary difference is the access time and write cycle time specification, which is 35 ns instead of 20 ns. This represents a slower speed grade of the same memory architecture and is electrically compatible with the original part.

Parameter Comparison

Engineering Selection Recommendations

The 7005L35G is the manufacturer-recommended substitute for the obsolete 7005S20G. Selection of the 7005L35G is justified by the following factors:

The 7005S20G is classified as obsolete, creating supply chain risk and limiting availability for new production and field replacements. The 7005L35G maintains active product status with Renesas Electronics Corporation, ensuring continued availability and manufacturing support.

Both parts share identical electrical specifications for supply voltage, operating temperature, memory capacity, and interface configuration. The 7005L35G operates at a slower speed grade (35 ns versus 20 ns), which is acceptable in applications where the original 20 ns timing was not a critical design constraint. In timing-critical applications, system-level validation is required to confirm that the 35 ns access time meets performance requirements.

Both parts carry identical compliance certifications: RoHS non-compliant status, MSL rating of 1 (Unlimited), REACH Unaffected designation, and ECCN classification EAR99. No compliance barriers exist to substitution.

Frequently Asked Questions (FAQ)

Q: Can the 7005L35G directly replace the 7005S20G in existing designs?

A: The 7005L35G is electrically and mechanically compatible with the 7005S20G. Both parts use identical 68-BPGA packaging, supply voltage, operating temperature range, and memory organization. The primary difference is access time: 35 ns versus 20 ns. Substitution is valid if system timing margins accommodate the slower speed grade.

Q: What is the significance of the access time difference between these parts?

A: Access time defines the delay from address setup to valid data output. The 7005S20G provides 20 ns access time, while the 7005L35G provides 35 ns. This 15 ns difference may impact system performance in timing-critical applications. Applications with sufficient timing margin can use the 7005L35G without modification.

Q: Are there any compliance or certification differences between these parts?

A: Both parts carry identical compliance status: RoHS non-compliant, REACH Unaffected, MSL 1 (Unlimited), and ECCN EAR99. No compliance barriers exist to substitution.

Q: Why is the 7005S20G classified as obsolete?

A: The 7005S20G is an older memory technology no longer in active production. The 7005L35G represents the active product line continuation from Renesas Electronics Corporation for this memory architecture.

Q: Are the packaging dimensions identical between these parts?

A: Yes. Both parts use 68-BPGA packaging with dimensions of 29.46 x 29.46 mm. Through-hole mounting is identical for both parts, ensuring PCB compatibility without layout modifications.