IDT7204L20SO Equivalent & Substitute Parts

Part Overview

The IDT7204L20SO 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 33.3MHz with a 20ns 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 primary reason for seeking alternatives is the discontinued product status, which limits long-term availability and supply chain reliability.

Substiute Parts

IDT7204L20SO

Renesas Electronics CorporationIn Stock: 5233IDT7204L20SO Datasheet

Current PartRFQ

7204L12SOG

Renesas Electronics CorporationIn Stock: 10017204L12SOG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IDT7204L20SO is determined by the following critical parameters:

• Memory configuration: 36K (4K x 9) capacity
• FIFO type: Asynchronous operation
• Bus architecture: Uni-directional
• Package: 28-SOIC form factor
• Voltage supply range: 4.5V ~ 5.5V
• Operating temperature range: 0°C ~ 70°C

The IDT7204L12SOG qualifies as a direct substitute based on identical memory size, function, bus directionality, package type, voltage supply, and operating temperature specifications. The substitute part demonstrates improved electrical performance characteristics while maintaining full pin and package compatibility.

Parameter Comparison

Engineering Selection Recommendations

The IDT7204L12SOG is the qualified substitute for the IDT7204L20SO based on the following engineering criteria:

Functional Compatibility: Both devices share identical memory architecture (36K, 4K x 9), asynchronous FIFO operation, uni-directional bus configuration, and 28-SOIC packaging. Pin-to-pin compatibility is maintained.

Electrical Performance: The substitute part operates within the same voltage supply range (4.5V ~ 5.5V) and maintains identical maximum supply current (120mA). The IDT7204L12SOG provides superior access time (12ns versus 20ns) and higher data rate capability (50MHz versus 33.3MHz), making it suitable for applications requiring equal or higher performance.

Product Status and Compliance: The IDT7204L12SOG holds active product status, ensuring ongoing availability and supply chain continuity. The substitute achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. Both devices maintain identical REACH and ECCN classifications.

Temperature Operating Range: Both parts operate across the identical temperature range (0°C ~ 70°C), ensuring thermal compatibility in target applications.

Frequently Asked Questions (FAQ)

Q: Can the IDT7204L12SOG directly replace the IDT7204L20SO in existing designs?

A: Yes. The IDT7204L12SOG provides direct pin-to-pin and package compatibility. The substitute maintains identical memory capacity, FIFO function, bus architecture, voltage supply range, and operating temperature specifications. The improved access time and data rate of the substitute part are backward-compatible with designs specified for the original device.

Q: What are the key differences between these two parts?

A: The primary differences are access time (20ns versus 12ns), data rate (33.3MHz versus 50MHz), product status (obsolete versus active), and RoHS compliance (non-compliant versus ROHS3 compliant). The substitute part delivers superior electrical performance while maintaining full functional and package compatibility.

Q: Are there any packaging differences between the IDT7204L20SO and IDT7204L12SOG?

A: No. Both devices use identical 28-SOIC packaging (0.345", 8.77mm width). Surface mount placement and PCB layout requirements remain unchanged.

Q: Does the IDT7204L12SOG meet current regulatory requirements?

A: The IDT7204L12SOG achieves ROHS3 compliance and maintains REACH unaffected status. The original IDT7204L20SO is RoHS non-compliant. For applications subject to RoHS regulations, the substitute part satisfies current compliance requirements.

Q: What is the inventory status of the substitute part?

A: The IDT7204L12SOG is actively manufactured and maintained in stock (956 pcs new original available). The original IDT7204L20SO is obsolete with limited remaining inventory (5150 pcs).