Renesas 7204L35TP Asynchronous FIFO IC - Equivalent & Substitute Parts

Part Overview

The Renesas 7204L35TP is an asynchronous FIFO memory IC with 36K capacity (4K x 9 bits) designed for uni-directional data buffering applications. This component operates at 22.22MHz with a 35ns access time and is housed in a 28-pin DIP package. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

7204L35TP

Renesas Electronics CorporationIn Stock: 9567204L35TP Datasheet

Current PartRFQ

7204L12TPG

Renesas Electronics CorporationIn Stock: 9257204L12TPG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7204L35TP is determined by the following critical parameters:

• Memory capacity: 36K (4K x 9) configuration
• Function type: Asynchronous FIFO operation
• Bus architecture: Uni-directional data flow
• Package form factor: 28-DIP (0.300", 7.62mm)
• Voltage supply range: 4.5V ~ 5.5V compatibility
• Operating temperature range: 0°C ~ 70°C

The 7204L12TPG meets all substitution criteria. While it provides improved performance characteristics (50MHz data rate, 12ns access time), it maintains identical memory architecture, package configuration, voltage specifications, and temperature operating range. The enhanced speed performance of the substitute part is backward-compatible with applications designed for the 7204L35TP.

Parameter Comparison

Engineering Selection Recommendations

The 7204L12TPG is a direct functional substitute for the 7204L35TP. Selection between these parts should be based on the following factors:

For legacy system maintenance: The 7204L35TP is obsolete. The 7204L12TPG provides identical functional capability with active product status, ensuring long-term availability and supply chain continuity.

For compliance requirements: The 7204L12TPG is ROHS3 compliant, whereas the 7204L35TP is RoHS non-compliant. Applications subject to RoHS regulations must use the 7204L12TPG.

For performance headroom: The 7204L12TPG offers superior performance specifications (50MHz vs. 22.22MHz data rate; 12ns vs. 35ns access time). This enhanced performance is fully backward-compatible with designs specified for the 7204L35TP.

Frequently Asked Questions (FAQ)

Q: Can the 7204L12TPG directly replace the 7204L35TP in existing designs?

A: Yes. Both parts share identical memory architecture (36K, 4K x 9), package configuration (28-DIP), voltage specifications (4.5V ~ 5.5V), and operating temperature range (0°C ~ 70°C). The 7204L12TPG's faster access time and higher data rate are backward-compatible with applications designed for the 7204L35TP.

Q: What is the primary reason to substitute the 7204L35TP?

A: The 7204L35TP is classified as obsolete. The 7204L12TPG is an active product from the same manufacturer and series, providing assured availability and supply chain support.

Q: Are there any electrical compatibility concerns?

A: No. Both parts operate within the same voltage supply range (4.5V ~ 5.5V) and maximum current specification (120mA). Pin configuration and functional behavior are identical.

Q: Does the package form factor remain the same?

A: Yes. Both parts use the 28-DIP (0.300", 7.62mm) package. No PCB layout modifications are required for substitution.

Q: What compliance advantage does the 7204L12TPG offer?

A: The 7204L12TPG is ROHS3 compliant, whereas the 7204L35TP is RoHS non-compliant. This is significant for applications subject to RoHS directives or customer compliance requirements.