Equivalent & Substitute Parts: Renesas 7203L15PDG

Part Overview

The Renesas 7203L15PDG is an asynchronous FIFO (First-In-First-Out) memory circuit with 2K x 9 bit capacity, designed for uni-directional data buffering applications. This 28-DIP through-hole component operates at 40MHz with a 15-nanosecond access time and is classified as obsolete by the manufacturer. Due to its obsolete status, equivalent substitute parts with active product status are necessary to ensure long-term design support, component availability, and supply chain continuity.

Substiute Parts

7203L15PDG

Renesas Electronics CorporationIn Stock: 12007203L15PDG Datasheet

Current PartRFQ

7203LA12JG

Renesas Electronics CorporationIn Stock: 9787203LA12JG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7203L15PDG is determined by strict equivalence in the following core parameters:

Mandatory Equivalence Criteria:

• Memory capacity: 2K x 9 bits
• Function: Asynchronous FIFO operation
• Bus configuration: Uni-Directional
• Supply voltage range: 4.5V ~ 5.5V
• Maximum supply current: 120mA or less
• Operating temperature range: 0°C ~ 70°C minimum
• Series family: Renesas 7200 logic family

Performance Parameters (Substitutes must meet or exceed):

• Data rate: 40MHz or higher
• Access time: 15ns or faster

Acceptable Variations:

• Mounting type: Surface mount substitutes are acceptable for new designs
• Package form factor: Different package types (DIP, PLCC, LCC) are acceptable provided electrical specifications are maintained
• Product status: Active status preferred for long-term availability

The identified substitute maintains all mandatory equivalence criteria while offering improved performance specifications and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Renesas 7203LA12JG is a direct functional equivalent to the 7203L15PDG with the following engineering basis:

Electrical Equivalence: Both components maintain identical memory capacity (2K x 9), asynchronous FIFO function, uni-directional bus configuration, supply voltage range (4.5V ~ 5.5V), maximum supply current (120mA), and operating temperature range (0°C ~ 70°C). These parameters define functional interchangeability at the circuit level.

Performance Enhancement: The 7203LA12JG provides superior performance specifications with 50MHz data rate (versus 40MHz) and 12-nanosecond access time (versus 15-nanosecond), ensuring compatibility with existing timing requirements and enabling headroom for future design iterations.

Product Status Advantage: The substitute part carries active product status from Renesas Electronics Corporation, ensuring continued manufacturing support, documented availability, and long-term supply chain reliability. The original 7203L15PDG is classified as obsolete, presenting risk for future procurement and design support.

Package Consideration: The substitute uses 32-LCC (J-Lead) surface-mount packaging instead of 28-DIP through-hole packaging. This requires PCB redesign for new implementations but does not affect electrical functionality. For existing through-hole designs, the original part may be retained if current inventory is available; however, new designs should adopt the surface-mount substitute to align with modern manufacturing practices and ensure component availability.

Frequently Asked Questions (FAQ)

Q: Can the 7203LA12JG directly replace the 7203L15PDG in existing circuit boards?

A: Electrical substitution is valid; however, physical substitution depends on packaging. The original 7203L15PDG uses 28-DIP through-hole packaging, while the 7203LA12JG uses 32-LCC surface-mount packaging. Direct socket replacement is not possible without PCB modification. For new designs, the surface-mount substitute is recommended.

Q: What are the key parameters that make these parts equivalent?

A: Equivalence is established through identical memory capacity (2K x 9 bits), asynchronous FIFO function, uni-directional bus configuration, supply voltage range (4.5V ~ 5.5V), maximum supply current (120mA), and operating temperature range (0°C ~ 70°C). Both parts belong to the Renesas 7200 logic family.

Q: Does the 7203LA12JG meet the timing requirements of the original design?

A: Yes. The 7203LA12JG exceeds the original timing specifications with 12-nanosecond access time (versus 15-nanosecond) and 50MHz data rate (versus 40MHz). Existing designs specified for the 7203L15PDG will operate correctly with the substitute without timing violations.

Q: Why is product status important for this substitution?

A: The 7203L15PDG is classified as obsolete, indicating discontinued manufacturing and limited future availability. The 7203LA12JG maintains active product status, ensuring continued support from Renesas Electronics Corporation, documented specifications, and reliable supply chain access for both current and future production requirements.

Q: Are there any electrical parameter differences that affect circuit design?

A: No. All electrical parameters—supply voltage, current consumption, operating temperature, and functional behavior—are identical between the two parts. The substitute provides performance improvements without requiring circuit redesign.

Q: What is the pin count difference between these packages?

A: The 7203L15PDG uses 28-DIP packaging (28 pins), while the 7203LA12JG uses 32-LCC packaging (32 pins). The additional pins in the LCC package accommodate the surface-mount form factor and do not indicate functional differences.