Renesas Electronics 7134SA20P SRAM Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 7134SA20P is a 32Kbit dual-port asynchronous SRAM with parallel interface, organized as 4K x 8 bits. This through-hole component operates at 20 ns access time and write cycle time, with supply voltage range of 4.5V to 5.5V. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

7134SA20P

Renesas Electronics CorporationIn Stock: 7277134SA20P Datasheet

Current PartRFQ

7134LA35CB

Renesas Electronics CorporationIn Stock: 10347134LA35CB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7134SA20P is determined by the following critical parameters:

• Memory capacity (32Kbit) and organization (4K x 8)
• Dual-port asynchronous SRAM technology
• Parallel interface configuration
• 48-DIP through-hole package compatibility
• Supply voltage range (4.5V ~ 5.5V)

The Renesas Electronics 7134LA35CB qualifies as a direct substitute based on matching memory size, organization, technology, interface type, voltage specification, and package form factor. Timing parameters (access time and write cycle time) may differ within acceptable operational margins for legacy system applications.

Parameter Comparison

Engineering Selection Recommendations

The 7134LA35CB is the manufacturer-recommended substitute for the obsolete 7134SA20P. Both components are manufactured by Renesas Electronics Corporation and maintain identical memory capacity, organization, interface configuration, and voltage specifications.

The 7134LA35CB offers extended operating temperature range (-55°C to 125°C versus 0°C to 70°C) and active product status, ensuring continued availability and supply chain support. The timing differential (35 ns versus 20 ns) reflects the substitute's design characteristics and must be evaluated within the context of the target application's timing requirements.

Both parts maintain RoHS non-compliant status and REACH unaffected classification. The 7134LA35CB is supplied in tube packaging, whereas the original part specification does not indicate packaging format.

Frequently Asked Questions (FAQ)

Q: Can the 7134LA35CB directly replace the 7134SA20P in existing designs?

A: Yes, the 7134LA35CB is the manufacturer-recommended substitute. Both components share identical memory capacity (32Kbit), organization (4K x 8), dual-port asynchronous architecture, parallel interface, voltage supply range (4.5V ~ 5.5V), and 48-DIP through-hole package form factor. The timing difference (35 ns versus 20 ns) must be verified against application timing constraints.

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

A: The 7134LA35CB features slower access and write cycle times (35 ns) compared to the 7134SA20P (20 ns), and provides an extended operating temperature range (-55°C to 125°C versus 0°C to 70°C). The 7134LA35CB maintains active product status, whereas the 7134SA20P is obsolete.

Q: Are there any package compatibility concerns?

A: Both components use the 48-DIP (0.600", 15.24mm) through-hole package, ensuring mechanical and electrical compatibility on PCBs designed for the original part.

Q: Do both parts meet the same compliance standards?

A: Both components are RoHS non-compliant and REACH unaffected. Compliance requirements for specific applications must be evaluated independently.

Q: What should be considered when selecting between these parts?

A: Selection should be based on application timing requirements, operating temperature range needs, and supply chain availability. The 7134LA35CB's active status and extended temperature range make it suitable for new designs and long-term production support.