72V255LA15TF8 Equivalent & Substitute Parts

Part Overview

The 72V255LA15TF8 is a Synchronous FIFO (First-In-First-Out) memory IC manufactured by Renesas Electronics Corporation. This component provides 144K bits of storage (8K x 18 organization) with a 10ns access time and 66.7MHz data rate in a 64-TQFP surface mount package. The part is classified as obsolete, making identification of compatible alternatives essential for ongoing system support and new design implementations. Substitute parts must maintain electrical compatibility across memory organization, voltage supply, bus configuration, and package specifications while meeting current product availability and compliance requirements.

Substiute Parts

72V255LA15TF8

Renesas Electronics CorporationIn Stock: 79872V255LA15TF8 Datasheet

Current PartRFQ

72V255LA10TFG8

Renesas Electronics CorporationIn Stock: 79272V255LA10TFG8 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The 72V255LA10TFG8 qualifies as a direct substitute based on the following critical parameters:

Memory organization remains identical at 144K (8K x 18), ensuring pin-compatible operation and software compatibility. Supply voltage range (3 V ~ 3.6 V) and maximum supply current (55mA) are unchanged, allowing direct integration into existing power delivery systems. Bus configuration maintains uni-directional operation with identical expansion capabilities (Depth, Width). Package specification remains 64-TQFP (10x10) surface mount, preserving PCB layout and assembly compatibility. Programmable flags and FWFT (First Word Fall Through) support are retained across both parts.

The substitute part offers performance improvements: access time reduces from 10ns to 6.5ns, and data rate increases from 66.7MHz to 100MHz. These enhancements provide superior performance within the same electrical and mechanical envelope.

Parameter Comparison

Engineering Selection Recommendations

The 72V255LA10TFG8 is the qualified substitute for the obsolete 72V255LA15TF8. Selection is based on the following engineering criteria:

Electrical compatibility is confirmed across all critical parameters: identical memory organization, supply voltage range, maximum supply current, and functional features (programmable flags, FWFT support, uni-directional bus operation).

Product status transition from obsolete to active ensures long-term availability and supply chain continuity. The substitute part carries ROHS3 compliance certification, meeting current environmental and regulatory requirements, whereas the main part is RoHS non-compliant.

Performance characteristics of the substitute part (6.5ns access time, 100MHz data rate) exceed the main part specifications (10ns access time, 66.7MHz data rate), providing operational margin within the same package and power envelope.

Packaging format change from bulk to Tape & Reel (TR) aligns with modern manufacturing and assembly standards, improving handling efficiency and component traceability.

Frequently Asked Questions (FAQ)

Q: Can the 72V255LA10TFG8 be used as a direct replacement for the 72V255LA15TF8 in existing designs?

A: Yes. Both parts share identical memory organization (8K x 18), supply voltage range (3 V ~ 3.6 V), maximum supply current (55mA), package specification (64-TQFP), and functional features (programmable flags, FWFT support, uni-directional bus). Pin compatibility and electrical characteristics are preserved.

Q: What are the performance differences between these parts?

A: The substitute part 72V255LA10TFG8 provides faster access time (6.5ns versus 10ns) and higher data rate (100MHz versus 66.7MHz). These improvements are backward compatible and do not require design modifications.

Q: Are there any compliance or regulatory differences?

A: The substitute part (72V255LA10TFG8) is ROHS3 compliant, while the main part (72V255LA15TF8) is RoHS non-compliant. Both parts are REACH Unaffected and carry EAR99 ECCN classification.

Q: Does the packaging format change affect PCB assembly?

A: The main part is supplied in bulk packaging, while the substitute is supplied in Tape & Reel (TR) format. Both use identical 64-TQFP (10x10) surface mount packages. Tape & Reel format is standard for automated assembly processes and does not affect PCB layout or component placement.

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

A: Both parts carry MSL 3 (168 Hours) moisture sensitivity classification, requiring identical handling and storage protocols.

Q: Are there any temperature operating range differences?

A: No. Both parts operate across the identical temperature range of 0°C to 70°C.