Renesas 7202LA50J8 Asynchronous FIFO Logic IC - Equivalent & Substitute Parts

Part Overview

The Renesas 7202LA50J8 is an asynchronous FIFO logic integrated circuit with 9K memory capacity (1K x 9 configuration). This device operates as a uni-directional FIFO with 50ns access time and 15MHz data rate, housed in a 32-PLCC surface mount package. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

7202LA50J8

Renesas Electronics CorporationIn Stock: 7617202LA50J8 Datasheet

Current PartRFQ

7202LA12JG8

Renesas Electronics CorporationIn Stock: 10687202LA12JG8 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7202LA50J8 is determined by the following critical parameters that must remain constant or be compatible:

• Memory configuration: 9K (1K x 9) - must match exactly
• Bus architecture: Uni-Directional - must match exactly
• Package type: 32-PLCC (14x11.46) - must match for PCB compatibility
• Voltage supply range: 4.5V ~ 5.5V - must be compatible
• Operating temperature range: 0°C ~ 70°C - must be compatible
• Mounting type: Surface Mount - must match for assembly compatibility

The 7202LA12JG8 qualifies as a substitute because it maintains identical memory configuration, bus architecture, package dimensions, voltage supply range, and operating temperature specifications. Performance parameters (access time and data rate) represent improvements over the original part, making this an upgrade substitute suitable for direct replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The 7202LA12JG8 is the qualified substitute for the obsolete 7202LA50J8. Selection criteria are based on the following factors:

Product Status: The 7202LA50J8 is obsolete, while the 7202LA12JG8 maintains active product status with ongoing manufacturer support and availability.

Regulatory Compliance: The 7202LA12JG8 achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. This compliance improvement aligns with current environmental and regulatory requirements for electronic components.

Performance Characteristics: The 7202LA12JG8 provides superior performance with 12ns access time and 50MHz data rate compared to the original 50ns and 15MHz specifications. These improvements are backward-compatible with designs requiring the original performance levels.

Packaging and Mechanical Compatibility: Both parts utilize identical 32-PLCC (14x11.46) surface mount packages, ensuring direct PCB compatibility without layout modifications.

Electrical Specifications: Voltage supply range, maximum supply current, and operating temperature specifications remain identical, confirming functional interchangeability in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the 7202LA12JG8 directly replace the 7202LA50J8 on existing PCBs?

A: Yes. Both parts share identical package dimensions (32-PLCC, 14x11.46), mounting type (surface mount), and electrical specifications (4.5V ~ 5.5V supply, 80mA max current, 0°C ~ 70°C operating range). Direct PCB replacement is possible without layout modifications.

Q: What are the key differences between these parts?

A: The primary differences are access time (50ns vs. 12ns), data rate (15MHz vs. 50MHz), product status (obsolete vs. active), and compliance certifications (RoHS non-compliant vs. ROHS3 compliant). The 7202LA12JG8 represents a performance upgrade with improved regulatory compliance.

Q: Are the memory configurations identical?

A: Yes. Both parts feature 9K memory capacity in 1K x 9 configuration with asynchronous FIFO function and uni-directional bus architecture.

Q: What is the significance of the different MSL ratings?

A: The 7202LA50J8 has MSL 1 (unlimited moisture exposure tolerance), while the 7202LA12JG8 has MSL 3 (168-hour moisture exposure limit). MSL 3 requires controlled storage and handling conditions but is standard for modern surface mount components.

Q: Why is the original part classified as obsolete?

A: The 7202LA50J8 is no longer in active production. The 7202LA12JG8 serves as the current-generation equivalent, offering improved performance and regulatory compliance while maintaining functional compatibility.

Q: Are there any supply voltage or current limitations that would prevent substitution?

A: No. Both parts operate within identical voltage ranges (4.5V ~ 5.5V) and draw the same maximum supply current (80mA), ensuring compatibility with existing power supply designs.