Equivalent & Substitute Parts for 7134LA45CB

Part Overview

The 7134LA45CB is a 32Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation. This memory IC features parallel interface architecture with 4K x 8 organization, designed for through-hole mounting in 48-DIP packages. The part is classified as obsolete, indicating it has reached end-of-life status and is no longer in active production. Locating equivalent substitute parts is necessary to support legacy system maintenance, repair operations, and design continuity where this component remains in service.

Substiute Parts

7134LA45CB

Renesas Electronics CorporationIn Stock: 10847134LA45CB Datasheet

Current PartRFQ

7134LA35CB

Renesas Electronics CorporationIn Stock: 10347134LA35CB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7134LA45CB is determined by strict equivalence across the following critical parameters:

• Memory capacity: 32Kbit
• Memory organization: 4K x 8
• Memory technology: Dual-port asynchronous SRAM
• Interface type: Parallel
• Package configuration: 48-DIP (0.600", 15.24mm)
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: -55°C ~ 125°C
• Mounting method: Through hole

The 7134LA35CB qualifies as a direct substitute based on full alignment with these parameters. The primary distinction is improved access time performance (35 ns versus 45 ns), which represents a performance enhancement rather than a compatibility constraint. Faster access time components are functionally compatible in applications designed for the original specification.

Parameter Comparison

Engineering Selection Recommendations

The 7134LA35CB is the qualified substitute for the obsolete 7134LA45CB. Both components share identical electrical specifications, memory architecture, and physical packaging. The substitute part maintains active production status, ensuring availability for procurement and inventory replenishment.

The 7134LA35CB delivers improved access time performance (35 ns) compared to the original specification (45 ns). This performance enhancement is backward-compatible with circuit designs specified for the 7134LA45CB, as faster memory components do not introduce timing violations in systems designed for slower access times.

Both parts carry identical RoHS non-compliance and REACH unaffected designations. Compliance requirements must be evaluated within the context of the end-application regulatory framework.

Frequently Asked Questions (FAQ)

Q: Can the 7134LA35CB directly replace the 7134LA45CB in existing circuit boards?

A: Yes. The 7134LA35CB is a direct pin-for-pin replacement. Both components use identical 48-DIP packaging, supply voltage requirements, and operating temperature ranges. The improved access time of the substitute part does not create compatibility issues.

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

A: The 7134LA35CB operates with 35 ns access time versus 45 ns for the 7134LA45CB. This represents faster memory response. Circuits designed for 45 ns operation will function correctly with the faster 35 ns component, as no timing constraints are violated.

Q: Why is the original 7134LA45CB classified as obsolete?

A: Obsolete status indicates the part has reached end-of-life and is no longer manufactured. The 7134LA35CB remains in active production, making it the appropriate choice for new procurement and system maintenance.

Q: Are there any compliance differences between these parts?

A: Both parts carry identical RoHS non-compliance and REACH unaffected designations. Compliance evaluation must be performed based on specific application requirements and regulatory jurisdiction.

Q: What packaging options are available for the substitute part?

A: The 7134LA35CB is supplied in tube packaging, while the original 7134LA45CB packaging format is not specified in the provided data. Both use the same 48-DIP (0.600", 15.24mm) physical package for through-hole mounting.