Equivalent & Substitute Parts for 7132LA55J8

Part Overview

The 7132LA55J8 is a 16Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation in a 52-PLCC package. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs. The part operates with a 55 ns access time and write cycle time, suitable for parallel memory interface applications requiring volatile storage in the 0°C to 70°C operating range.

Substiute Parts

7132LA55J8

Renesas Electronics CorporationIn Stock: 10567132LA55J8 Datasheet

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7132LA20JG8

Renesas Electronics CorporationIn Stock: 7567132LA20JG8 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7132LA55J8 is determined by strict equivalence across the following critical parameters:

• Memory capacity (16Kbit) and organization (2K x 8)
• Dual-port asynchronous SRAM architecture
• Parallel memory interface
• 52-PLCC package footprint and J-Lead configuration
• Supply voltage range (4.5V ~ 5.5V)
• Operating temperature range (0°C ~ 70°C)

The 7132LA20JG8 qualifies as a direct substitute based on these parameters. Access time and write cycle time are faster (20 ns versus 55 ns), which represents an upgrade in performance while maintaining full backward compatibility. Both parts share identical memory capacity, organization, interface type, package, and electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

The 7132LA20JG8 is the qualified substitute for the obsolete 7132LA55J8. Selection of the substitute is justified on the following grounds:

• The substitute maintains active product status, ensuring long-term availability and supply chain continuity.
• The 7132LA20JG8 achieves ROHS3 compliance, whereas the main part is non-compliant, supporting regulatory requirements for new designs and manufacturing environments.
• Performance is enhanced through faster access and write cycle times (20 ns versus 55 ns), providing improved system timing margins without requiring circuit redesign.
• Electrical and mechanical specifications are fully compatible, including supply voltage, operating temperature range, memory capacity, organization, and package footprint.
• Both parts are manufactured by Renesas Electronics Corporation, ensuring consistent quality and reliability standards.

Frequently Asked Questions (FAQ)

Q: Can the 7132LA20JG8 be used as a direct replacement for the 7132LA55J8 in existing designs?

A: Yes. The 7132LA20JG8 is electrically and mechanically compatible with the 7132LA55J8. Both parts operate on identical supply voltages (4.5V ~ 5.5V), support the same operating temperature range (0°C ~ 70°C), and use the 52-PLCC package. The faster access time of the substitute (20 ns) is backward compatible with designs specified for 55 ns operation.

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

A: The primary difference is access time and write cycle time. The 7132LA20JG8 operates at 20 ns, while the 7132LA55J8 operates at 55 ns. This represents a performance upgrade with no changes to memory capacity, organization, interface type, or package configuration.

Q: Are there packaging differences between the main part and substitute?

A: The main part (7132LA55J8) is supplied in bulk packaging, while the substitute (7132LA20JG8) is supplied in Tape & Reel (TR) format. Both use the identical 52-PLCC (J-Lead) package footprint suitable for surface mount assembly.

Q: Does the substitute meet current regulatory compliance standards?

A: Yes. The 7132LA20JG8 is ROHS3 compliant and REACH unaffected. The main part is RoHS non-compliant. For new designs and manufacturing environments subject to RoHS regulations, the substitute is the appropriate selection.

Q: Is the substitute part currently available?

A: Yes. The 7132LA20JG8 has active product status with inventory availability. The main part is obsolete and has limited availability.