Equivalent & Substitute Parts for Renesas 7134LA70CB

Part Overview

The Renesas 7134LA70CB is a 32Kbit dual-port asynchronous SRAM with parallel interface, organized as 4K x 8 bits. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs. The part operates within a 4.5V to 5.5V supply range with 70 ns access time and is housed in a 48-DIP through-hole package.

Substiute Parts

7134LA70CB

Renesas Electronics CorporationIn Stock: 9637134LA70CB Datasheet

Current PartRFQ

7134LA35CB

Renesas Electronics CorporationIn Stock: 10347134LA35CB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7134LA70CB is determined by strict equivalence across the following parameters:

• Memory capacity and organization (32Kbit, 4K x 8 configuration)
• Dual-port asynchronous SRAM technology
• Parallel interface architecture
• Supply voltage range (4.5V ~ 5.5V)
• Operating temperature range (-55°C ~ 125°C)
• Physical package (48-DIP through-hole)

The 7134LA35CB qualifies as a direct substitute based on identical memory specifications, voltage requirements, temperature range, and package form factor. The primary distinction is access time performance: the substitute operates at 35 ns versus the original 70 ns specification.

Parameter Comparison

Engineering Selection Recommendations

The 7134LA35CB is the designated substitute for the obsolete 7134LA70CB. Both components share identical memory architecture, electrical specifications, and physical packaging. The substitute maintains active product status with Renesas Electronics Corporation, ensuring continued availability and supply chain support.

The 35 ns access time of the substitute represents improved performance relative to the original 70 ns specification. This faster access time is backward-compatible with designs requiring the original part, as timing-critical applications will benefit from the reduced latency. Both parts maintain identical voltage supply and temperature operating ranges, ensuring direct functional replacement in existing circuit designs.

Compliance status remains consistent between the original and substitute: both are RoHS non-compliant and REACH unaffected. Component selection should account for these regulatory classifications in the context of end-application requirements.

Frequently Asked Questions (FAQ)

Q: Can the 7134LA35CB directly replace the 7134LA70CB in existing designs?

A: Yes. The 7134LA35CB is electrically and mechanically equivalent to the 7134LA70CB. Both components feature identical memory capacity, organization, supply voltage, temperature range, and 48-DIP package configuration. The substitute operates at faster access time (35 ns versus 70 ns), which is compatible with designs specified for the original part.

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

A: The access time and write cycle time differ. The 7134LA70CB operates at 70 ns, while the 7134LA35CB operates at 35 ns. All other electrical and mechanical parameters are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 48-DIP (0.600", 15.24mm) through-hole package with identical pinout and mounting configuration.

Q: Why is the original part listed as obsolete?

A: The 7134LA70CB is classified as obsolete by Renesas Electronics Corporation. The 7134LA35CB remains in active production status, making it the recommended source for new procurement and design implementations.

Q: Do both parts have the same voltage and temperature specifications?

A: Yes. Both components operate within 4.5V to 5.5V supply voltage and -55°C to 125°C operating temperature range.

Q: What are the compliance considerations for these parts?

A: Both the 7134LA70CB and 7134LA35CB are RoHS non-compliant and REACH unaffected. Applications subject to RoHS or REACH requirements must account for these regulatory classifications.