Equivalent & Substitute Parts for 7132SA55CB

Part Overview

The 7132SA55CB is a 16Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation, packaged in a 48-DIP (0.600", 15.24mm) through-hole configuration with a 55 ns access time. This part is classified as obsolete and is no longer in active production. Finding equivalent or substitute components is necessary due to the discontinued status and limited availability of new stock for long-term production requirements.

Substiute Parts

7132SA55CB

Renesas Electronics CorporationIn Stock: 10127132SA55CB Datasheet

Current PartRFQ

7132LA20JG

Renesas Electronics CorporationIn Stock: 10677132LA20JG Datasheet

MFR RecommendedRFQ

7132LA100CB

Renesas Electronics CorporationIn Stock: 9857132LA100CB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 7132SA55CB is determined by the following core electrical and mechanical parameters:

Core Compatibility Criteria:

• Memory capacity: 16Kbit (2K x 8 organization)
• Dual-port asynchronous SRAM technology
• Parallel interface
• Supply voltage range: 4.5V ~ 5.5V
• Access time equal to or faster than 55 ns

Substitute Parts Identified:

1. 7132LA20JG - Faster access time (20 ns), surface-mount PLCC package, active product status
2. 7132LA100CB - Slower access time (100 ns), through-hole DIP package, active product status

Both substitutes maintain the core electrical specifications (16Kbit capacity, dual-port asynchronous SRAM, parallel interface, 4.5V ~ 5.5V supply voltage) and are manufactured by Renesas Electronics Corporation.

Parameter Comparison

Engineering Selection Recommendations

7132LA100CB is the direct functional replacement for the 7132SA55CB when package compatibility and through-hole mounting are required. Both parts share identical packaging (48-DIP), mounting type (through hole), and operating temperature range (-55°C ~ 125°C). The 7132LA100CB is in active production status, ensuring long-term availability. The slower access time (100 ns versus 55 ns) is acceptable in applications where timing margins permit. RoHS compliance status remains unchanged between the main part and this substitute.

7132LA20JG provides superior performance with a 20 ns access time but requires design modification due to different packaging (52-LCC surface mount versus 48-DIP through hole) and reduced operating temperature range (0°C ~ 70°C versus -55°C ~ 125°C). This substitute is suitable only for applications with compatible PCB layouts and thermal requirements. The 7132LA20JG achieves ROHS3 compliance, representing an improvement in environmental standards.

Selection between substitutes depends on whether the application can accommodate package and temperature range differences, or if through-hole DIP packaging with extended temperature range is mandatory.

Frequently Asked Questions (FAQ)

Q: Can the 7132LA20JG replace the 7132SA55CB in existing designs?

A: Electrical substitution is possible due to matching memory capacity, organization, interface type, and supply voltage. However, physical substitution requires PCB redesign because the 7132LA20JG uses 52-LCC surface-mount packaging while the 7132SA55CB uses 48-DIP through-hole packaging. Additionally, the 7132LA20JG operating temperature range (0°C ~ 70°C) is narrower than the 7132SA55CB range (-55°C ~ 125°C), limiting use in extended-temperature applications.

Q: Is the 7132LA100CB a direct replacement for the 7132SA55CB?

A: Yes, the 7132LA100CB is a direct replacement. Both parts use identical 48-DIP through-hole packaging, share the same -55°C ~ 125°C operating temperature range, and maintain the same supply voltage specification (4.5V ~ 5.5V). The 7132LA100CB is in active production, ensuring availability. The access time difference (100 ns versus 55 ns) must be evaluated against application timing requirements.

Q: What are the key electrical parameters that define substitutability?

A: Substitutes must maintain 16Kbit capacity with 2K x 8 organization, dual-port asynchronous SRAM technology, parallel interface, and 4.5V ~ 5.5V supply voltage. Access time must be equal to or faster than the original specification to ensure timing compatibility. All identified substitutes meet these criteria.

Q: Why does the 7132SA55CB require a substitute?

A: The 7132SA55CB is classified as obsolete and no longer manufactured. Substitute parts ensure continued availability for production, maintenance, and field replacement applications.

Q: What is the difference between the two substitute options?

A: The 7132LA100CB maintains the through-hole DIP package and extended temperature range of the original part but operates at 100 ns access time. The 7132LA20JG offers faster 20 ns access time and improved RoHS3 compliance but requires surface-mount assembly and operates only within 0°C ~ 70°C temperature range. Selection depends on packaging constraints and thermal requirements.