IDT7204L50SO Equivalent & Substitute Parts

Part Overview

The IDT7204L50SO is an asynchronous FIFO (First-In-First-Out) memory device manufactured by Renesas Electronics Corporation. This 36K (4K x 9) uni-directional FIFO operates at 15MHz with a 50ns access time in a 28-SOIC surface mount package. The device is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The 50ns access time and 15MHz data rate define the performance envelope for this component category.

Substiute Parts

IDT7204L50SO

Renesas Electronics CorporationIn Stock: 965IDT7204L50SO Datasheet

Current PartRFQ

7204L12SOG

Renesas Electronics CorporationIn Stock: 10017204L12SOG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IDT7204L50SO is determined by the following critical parameters:

• Memory Architecture: Must maintain 36K (4K x 9) configuration
• FIFO Function: Must be asynchronous operation
• Bus Configuration: Must be uni-directional
• Electrical Specifications: Supply voltage 4.5V ~ 5.5V, maximum supply current 120mA
• Package Compatibility: Must use 28-SOIC form factor with identical pin configuration
• Operating Temperature Range: Must support 0°C ~ 70°C minimum

The IDT7204L12SOG qualifies as a direct substitute based on matching all architectural and electrical parameters. Performance characteristics (data rate and access time) are enhanced in the substitute, providing superior speed capability while maintaining full backward compatibility with the original design envelope.

Parameter Comparison

Engineering Selection Recommendations

IDT7204L12SOG is the qualified substitute for IDT7204L50SO applications.

Product Status Consideration: The IDT7204L50SO is classified as obsolete, while the IDT7204L12SOG maintains active product status. This status difference supports transition to the substitute part for new procurement and long-term design continuity.

Compliance Status: The IDT7204L12SOG is RoHS3 compliant, whereas the original IDT7204L50SO is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components.

Performance Enhancement: The substitute part delivers superior performance specifications (50MHz data rate and 12ns access time versus 15MHz and 50ns) while maintaining identical electrical and mechanical interfaces. This performance margin provides additional design headroom without requiring circuit modifications.

Packaging and Thermal Characteristics: Both parts share identical 28-SOIC packaging, moisture sensitivity level (MSL 3), and operating temperature range, ensuring direct physical and thermal compatibility in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can IDT7204L12SOG be used as a direct replacement for IDT7204L50SO in existing designs?

A: Yes. The IDT7204L12SOG is a direct substitute. Both devices share identical memory architecture (36K, 4K x 9), electrical specifications (4.5V ~ 5.5V supply, 120mA maximum current), bus configuration (uni-directional), package format (28-SOIC), and operating temperature range (0°C ~ 70°C). No circuit modifications are required.

Q: What are the performance differences between these parts?

A: The IDT7204L12SOG provides faster operation with 50MHz data rate and 12ns access time compared to the IDT7204L50SO at 15MHz and 50ns. These enhanced specifications are backward compatible with designs specified for the slower part.

Q: Are there any packaging or pinout differences?

A: No. Both parts use the 28-SOIC package with identical pin configuration and physical dimensions (0.345" width, 8.77mm). PCB layouts and socket compatibility are unchanged.

Q: Why is the IDT7204L50SO listed as obsolete?

A: The IDT7204L50SO has reached end-of-life status with Renesas Electronics Corporation. The IDT7204L12SOG represents the active product line continuation for this FIFO memory category.

Q: What compliance certifications apply to the substitute part?

A: The IDT7204L12SOG is RoHS3 compliant and REACH unaffected. Both parts carry identical ECCN (EAR99) and HTSUS (8542.32.0071) classifications.

Q: Are moisture sensitivity levels equivalent?

A: Yes. Both parts are classified as MSL 3 (168 Hours), requiring identical handling and storage protocols.