72245LB25PF Equivalent & Substitute Parts

Part Overview

The 72245LB25PF is a Synchronous FIFO logic integrated circuit manufactured by Renesas Electronics Corporation, featuring 72K memory capacity (4K x 18 configuration) with 15ns access time and 40MHz data rate in a 64-TQFP surface mount package. This part is classified as obsolete, making equivalent substitute components necessary for new designs and ongoing production requirements. The device operates within a 4.5V to 5.5V supply voltage range with maximum supply current of 60mA and supports programmable flags for depth and width expansion in uni-directional applications.

Substiute Parts

72245LB25PF

Renesas Electronics CorporationIn Stock: 91772245LB25PF Datasheet

Current PartRFQ

72245LB10PFG

Renesas Electronics CorporationIn Stock: 245872245LB10PFG Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

The 72245LB10PFG qualifies as a direct substitute for the 72245LB25PF based on the following critical parameters that determine substitution compatibility:

Matching Parameters (Required for Substitution):

• Memory configuration: 72K (4K x 18) — identical capacity and organization
• Function: Synchronous FIFO — same operational mode
• Voltage supply range: 4.5V ~ 5.5V — identical electrical requirements
• Current supply maximum: 60mA — same power consumption specification
• Bus directional: Uni-Directional — same data flow architecture
• Expansion type: Depth, Width — identical programmable flags support
• Package / Case: 64-LQFP — identical physical footprint and pin configuration
• Mounting type: Surface Mount — same assembly method
• Operating temperature: 0°C ~ 70°C — identical thermal operating range

Performance Enhancement: The 72245LB10PFG provides improved performance specifications (100MHz data rate and 6.5ns access time) compared to the 72245LB25PF (40MHz and 15ns), making it a direct upgrade path for applications requiring higher speed operation within the same electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

The 72245LB10PFG is the appropriate substitute for the obsolete 72245LB25PF. Selection is based on the following engineering criteria:

Product Status: The 72245LB25PF is classified as obsolete, creating supply chain risk for new production and long-term availability concerns. The 72245LB10PFG maintains active product status with Renesas Electronics Corporation, ensuring continued availability and manufacturing support.

Compliance and Certifications: The 72245LB10PFG achieves ROHS3 compliance, whereas the 72245LB25PF is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification. For applications subject to RoHS regulatory requirements, the 72245LB10PFG is the mandated selection.

Electrical and Mechanical Compatibility: The substitute part maintains identical supply voltage range, maximum supply current, package footprint, pin configuration, and operating temperature specifications. Pin-for-pin compatibility is confirmed, enabling direct board-level substitution without layout modifications.

Performance Characteristics: The 72245LB10PFG delivers superior performance with 100MHz data rate and 6.5ns access time, representing a 2.5x improvement in data rate and 2.3x improvement in access time. These enhancements are backward compatible with applications designed for the 72245LB25PF specifications.

Frequently Asked Questions (FAQ)

Q: Can the 72245LB10PFG be used as a direct replacement for the 72245LB25PF in existing designs?

A: Yes. The 72245LB10PFG is pin-for-pin compatible with identical package, voltage supply range, current specifications, and operating temperature range. No circuit modifications or board redesign is required for substitution.

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

A: The primary differences are product status (obsolete vs. active), data rate (40MHz vs. 100MHz), access time (15ns vs. 6.5ns), and RoHS compliance status (non-compliant vs. ROHS3 compliant). All other electrical and mechanical parameters remain identical.

Q: Is the 72245LB10PFG suitable for applications with lower speed requirements?

A: Yes. The 72245LB10PFG operates at higher performance specifications but maintains full backward compatibility with designs specified for 40MHz operation. The device will function correctly in applications requiring lower data rates.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 64-LQFP (64-TQFP 14x14) surface mount package with identical pin assignments and mechanical dimensions.

Q: What is the moisture sensitivity level for these components?

A: Both the 72245LB25PF and 72245LB10PFG have a Moisture Sensitivity Level (MSL) rating of 3 with a 168-hour floor life specification.

Q: Does the 72245LB10PFG require different supply voltage or current specifications?

A: No. The substitute part operates within the identical 4.5V to 5.5V supply voltage range with the same 60mA maximum supply current specification as the original part.