Equivalent & Substitute Parts for Renesas 7142SA35CB

Part Overview

The Renesas 7142SA35CB is a 16Kbit dual-port asynchronous SRAM with parallel interface, designed for applications requiring fast memory access at 35 ns. This component features a 48-DIP through-hole package and operates across the industrial temperature range of -55°C to 125°C. The part is classified as obsolete, making identification of compatible substitutes essential for system maintenance, repair, and legacy equipment support.

Substiute Parts

7142SA35CB

Renesas Electronics CorporationIn Stock: 7987142SA35CB Datasheet

Current PartRFQ

7132LA100CB

Renesas Electronics CorporationIn Stock: 9857132LA100CB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7142SA35CB is determined by strict equivalence in the following critical parameters:

• Memory capacity (16Kbit) and organization (2K x 8)
• Dual-port asynchronous SRAM architecture
• Parallel interface configuration
• 48-DIP through-hole package footprint
• Supply voltage range (4.5V to 5.5V)
• Operating temperature range (-55°C to 125°C)

The Renesas 7132LA100CB qualifies as a functional substitute based on matching all mechanical and electrical parameters listed above. The primary difference is access time specification: the 7132LA100CB operates at 100 ns versus the original 35 ns. This timing difference is acceptable in applications where the system clock and memory access timing do not require the faster 35 ns specification.

Parameter Comparison

Engineering Selection Recommendations

The 7132LA100CB is the designated manufacturer substitute for the obsolete 7142SA35CB. Both components are manufactured by Renesas Electronics Corporation and share identical mechanical packaging and electrical supply specifications. The 7132LA100CB maintains active product status, ensuring continued availability for replacement applications.

Selection of the 7132LA100CB is appropriate for systems where the extended access time of 100 ns does not conflict with circuit timing requirements. The slower access time represents the primary technical distinction between the original and substitute part. Both components carry identical RoHS non-compliance and REACH unaffected certifications, maintaining equivalent regulatory status.

Frequently Asked Questions (FAQ)

Q: Can the 7132LA100CB directly replace the 7142SA35CB in all applications?

A: Direct replacement is possible from a mechanical and electrical standpoint, as both components share identical package footprints, pin configurations, and supply voltage requirements. However, the extended access time of 100 ns versus 35 ns must be evaluated against system timing specifications. Applications with strict timing constraints may require circuit analysis to confirm compatibility.

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

A: The 7142SA35CB specifies 35 ns access and write cycle times, while the 7132LA100CB specifies 100 ns. Both are 16Kbit dual-port asynchronous SRAM devices with identical memory organization and parallel interface architecture.

Q: Are there any packaging differences between the original and substitute?

A: No. Both components use the 48-DIP through-hole package with 0.600" (15.24mm) body width. Pin-to-pin compatibility is maintained, allowing direct socket substitution.

Q: What is the availability status of each part?

A: The 7142SA35CB is classified as obsolete. The 7132LA100CB maintains active product status with current manufacturing availability from Renesas Electronics Corporation.

Q: Do both parts meet the same compliance standards?

A: Both components carry identical RoHS non-compliance and REACH unaffected certifications. No compliance advantage exists between the original and substitute part.