Renesas 7204L50J8 Equivalent & Substitute Parts

Part Overview

The Renesas 7204L50J8 is an asynchronous FIFO memory IC with 36K capacity (4K x 9 bits) designed for uni-directional data buffering applications. Operating at 15MHz with 50ns access time, this component is housed in a 32-PLCC surface mount package. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing system support and new design implementations.

Substiute Parts

7204L50J8

Renesas Electronics CorporationIn Stock: 8007204L50J8 Datasheet

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7204L12JG8

Renesas Electronics CorporationIn Stock: 10177204L12JG8 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7204L50J8 is determined by the following critical parameters:

• Memory Architecture: Identical 36K (4K x 9) capacity and asynchronous function
• Bus Configuration: Uni-directional data flow requirement
• Electrical Compatibility: Matching 4.5V ~ 5.5V supply voltage and 120mA maximum current
• Package Compatibility: 32-PLCC (14x11.46) surface mount form factor
• Operating Temperature Range: 0°C ~ 70°C specification

The 7204L12JG8 qualifies as a direct substitute based on these parameters. Performance characteristics such as access time and data rate may exceed the original specification, providing enhanced capability within the same electrical and mechanical envelope.

Parameter Comparison

Engineering Selection Recommendations

The 7204L12JG8 is the qualified substitute for the obsolete 7204L50J8. Selection is based on the following factors:

• Electrical Compatibility: Both parts operate within identical voltage and current specifications, ensuring direct functional replacement in existing circuit designs.
• Package Equivalence: Identical 32-PLCC (14x11.46) surface mount package enables direct PCB layout compatibility without redesign.
• Performance Enhancement: The substitute provides superior access time (12ns vs. 50ns) and higher data rate (50MHz vs. 15MHz), delivering improved performance within the same electrical envelope.
• Compliance Status: The substitute achieves ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for new production and long-term supply chain sustainability.
• Availability: Active product status ensures ongoing availability and supply chain continuity compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the 7204L12JG8 be used as a direct replacement for the 7204L50J8 in existing designs?

A: Yes. Both parts share identical memory capacity (36K, 4K x 9), asynchronous function, uni-directional bus configuration, electrical specifications (4.5V ~ 5.5V, 120mA), and 32-PLCC package form factor. The substitute operates within the same physical and electrical constraints as the original part.

Q: What are the performance differences between these parts?

A: The 7204L12JG8 provides faster access time (12ns vs. 50ns) and higher data rate capability (50MHz vs. 15MHz). These represent performance improvements that do not degrade compatibility with designs specified for the original 7204L50J8.

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

A: No. Both parts use the 32-PLCC (14x11.46) surface mount package with J-lead configuration. PCB footprints and mounting procedures are identical.

Q: What is the significance of the RoHS compliance difference?

A: The original 7204L50J8 is RoHS non-compliant, while the 7204L12JG8 achieves ROHS3 compliance. For new production runs and systems subject to RoHS regulations, the substitute ensures regulatory compliance without functional or electrical compromise.

Q: Why is the original part listed as obsolete?

A: Obsolete status indicates the 7204L50J8 is no longer in active production. The 7204L12JG8 remains in active production status, providing assured long-term availability and supply chain stability for ongoing applications.