Equivalent & Substitute Parts for Renesas 7142LA100C

Part Overview

The Renesas 7142LA100C is a 16Kbit dual-port asynchronous SRAM with parallel interface, designed for applications requiring volatile memory with 100 ns access time. This component features a 48-DIP through-hole package and operates across the industrial temperature range of 0°C to 70°C. The part is classified as obsolete, making identification of compatible substitutes essential for system maintenance, repair, and legacy equipment support.

Substiute Parts

7142LA100C

Renesas Electronics CorporationIn Stock: 10487142LA100C Datasheet

Current PartRFQ

7132LA100CB

Renesas Electronics CorporationIn Stock: 9857132LA100CB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7142LA100C is determined by strict equivalence across the following critical parameters:

• Memory capacity and organization (16Kbit, 2K x 8 configuration)
• Dual-port asynchronous SRAM architecture
• Parallel interface specification
• Access and write cycle timing (100 ns)
• Supply voltage range (4.5V to 5.5V)
• Package form factor (48-DIP, 15.24mm pitch)
• Through-hole mounting compatibility

The substitute part 7132LA100CB maintains identical electrical and mechanical specifications across all these parameters, ensuring functional equivalence in circuit applications. The primary distinction lies in product status and operating temperature range, which do not affect substitution eligibility for the specified electrical interface.

Parameter Comparison

Engineering Selection Recommendations

The 7132LA100CB serves as a direct functional substitute for the obsolete 7142LA100C. Both components are manufactured by Renesas Electronics Corporation and share identical electrical specifications, memory architecture, and physical packaging. The substitute part is currently in active production status, ensuring availability for replacement applications.

The extended operating temperature range of the 7132LA100CB (-55°C to 125°C) encompasses the original part's specification (0°C to 70°C), providing thermal margin for legacy system applications. Both parts maintain equivalent RoHS non-compliance and REACH unaffected status, reflecting their generation and manufacturing process.

Selection of the 7132LA100CB is appropriate for direct replacement in through-hole PCB assemblies where the 7142LA100C is specified, provided the circuit design operates within the original temperature constraints.

Frequently Asked Questions (FAQ)

Q: Can the 7132LA100CB replace the 7142LA100C in existing circuit designs?

A: Yes. The 7132LA100CB maintains identical electrical specifications, memory organization, access timing, supply voltage requirements, and physical package dimensions. Direct substitution is supported for through-hole PCB applications.

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

A: The 7142LA100C is classified as obsolete, while the 7132LA100CB is in active production. The substitute part also specifies an extended operating temperature range (-55°C to 125°C versus 0°C to 70°C), though this does not affect substitution for applications within the original temperature specification.

Q: Are there any compliance or certification differences?

A: Both parts share identical RoHS non-compliance and REACH unaffected status. No compliance advantage exists between the two components.

Q: Is the 48-DIP package identical between both parts?

A: Yes. Both components use the 48-DIP (0.600", 15.24mm) through-hole package with 48-SIDE BRAZED supplier device packaging. Pin-for-pin compatibility is maintained.

Q: What memory specifications must be matched for substitution?

A: Substitution requires equivalence in memory capacity (16Kbit), organization (2K x 8), interface type (parallel), architecture (dual-port asynchronous), access time (100 ns), and write cycle time (100 ns).