Equivalent & Substitute Parts for 7132L55PDGI

Part Overview

The 7132L55PDGI is a 16Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation. This through-hole mounted memory IC operates with a 55 ns access time and is housed in a 48-PDIP package. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for system redesign, legacy system maintenance, and component procurement planning.

Substiute Parts

7132L55PDGI

Renesas Electronics CorporationIn Stock: 9347132L55PDGI Datasheet

Current PartRFQ

7132LA20JG

Renesas Electronics CorporationIn Stock: 10677132LA20JG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7132L55PDGI is determined by the following critical parameters:

Functional Equivalence Criteria:

• Memory size: 16Kbit capacity
• Memory organization: 2K x 8 configuration
• Memory format: Dual-port asynchronous SRAM technology
• Memory interface: Parallel interface
• Voltage supply range: 4.5V ~ 5.5V compatibility

Performance Considerations:

• Access time specifications must equal or exceed the original 55 ns performance requirement
• Write cycle time must be compatible with system timing constraints

Physical and Operational Constraints:

• Mounting type and package form factor affect board-level integration
• Operating temperature range must support the intended application environment

The substitute part 7132LA20JG maintains functional equivalence in memory capacity, organization, format, interface, and voltage supply specifications. However, differences in access time, package type, mounting method, and operating temperature range require engineering evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 7132LA20JG is classified as active product status, whereas the 7132L55PDGI is obsolete. For new designs or system redesigns, the 7132LA20JG provides continued manufacturer support and availability.

Compliance and Certification: The 7132LA20JG carries ROHS3 compliance and REACH unaffected status, meeting modern environmental and regulatory requirements. The original 7132L55PDGI does not specify these compliance certifications.

Performance Characteristics: The 7132LA20JG provides superior access time (20 ns versus 55 ns) and write cycle time (20 ns versus 55 ns), delivering faster memory performance. This performance improvement is backward compatible with systems designed for the original 55 ns specification.

Integration Constraints: The transition from through-hole 48-DIP packaging to surface-mount 52-LCC packaging requires PCB redesign and assembly process modification. The operating temperature range narrows from -40°C ~ 85°C to 0°C ~ 70°C, which may restrict use in extended temperature applications.

Frequently Asked Questions (FAQ)

Q: Can the 7132LA20JG directly replace the 7132L55PDGI in existing circuit boards?

A: Direct socket replacement is not possible due to different mounting types and package configurations. The 7132L55PDGI uses through-hole 48-DIP packaging, while the 7132LA20JG uses surface-mount 52-LCC packaging. PCB redesign is required for substitution.

Q: Are the memory specifications identical between these parts?

A: Yes. Both parts share identical memory capacity (16Kbit), organization (2K x 8), format (dual-port asynchronous SRAM), interface (parallel), and voltage supply range (4.5V ~ 5.5V). These core specifications ensure functional equivalence.

Q: Does the faster access time of the 7132LA20JG create compatibility issues?

A: No. The 7132LA20JG's 20 ns access time is faster than the original 55 ns specification. Systems designed for 55 ns operation will function correctly with the faster substitute part, as timing requirements are met or exceeded.

Q: What is the impact of the narrower operating temperature range?

A: The 7132LA20JG operates from 0°C ~ 70°C, compared to the original -40°C ~ 85°C range. Applications requiring extended temperature operation below 0°C or above 70°C cannot use this substitute without additional thermal management or alternative component selection.

Q: Is the 7132LA20JG suitable for new product designs?

A: Yes. The 7132LA20JG is active product status with ROHS3 compliance and REACH compliance, making it appropriate for new designs. The original 7132L55PDGI is obsolete and not recommended for new development.

Q: How do the package differences affect component sourcing?

A: The 7132LA20JG is surface-mount technology, which aligns with modern manufacturing processes and offers better availability through active product channels. The original through-hole 48-DIP package is associated with legacy systems and may have limited sourcing options due to obsolete status.