Renesas 72401L10P Equivalent & Substitute Parts

Part Overview

The Renesas 72401L10P is an asynchronous FIFO logic integrated circuit with 256-bit memory capacity (64 x 4 organization) designed for uni-directional data buffering applications. Operating at 10MHz with 55ns access time, this component provides temporary storage for data streams in digital systems requiring asynchronous first-in-first-out functionality.

The 72401L10P is classified as obsolete. Locating equivalent substitute parts is necessary to support legacy system maintenance, board-level repairs, and production continuity for applications where this component remains in service.

Substiute Parts

72401L10P

Renesas Electronics CorporationIn Stock: 221272401L10P Datasheet

Current PartRFQ

SN74ALS236N

Texas InstrumentsIn Stock: 915SN74ALS236N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 72401L10P is determined by the following critical parameters:

• Memory organization: 256 bits (64 x 4 configuration)
• Asynchronous FIFO function with uni-directional bus architecture
• Supply voltage compatibility: 4.5V ~ 5.5V range
• Package form factor: 16-DIP through-hole mounting
• Operating temperature range: 0°C ~ 70°C minimum

The Texas Instruments SN74ALS236N meets all mandatory substitution criteria. While this substitute exhibits superior electrical performance (30MHz data rate, 22ns access time, 145mA maximum supply current), these enhanced specifications remain within the functional envelope of the original design and do not create incompatibility. The substitute maintains identical memory organization, bus architecture, voltage supply range, package configuration, and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALS236N is a direct functional substitute for the 72401L10P in applications requiring asynchronous FIFO buffering with 256-bit capacity and uni-directional data flow.

From a compliance perspective, the SN74ALS236N offers improved environmental status: it is ROHS3 compliant, whereas the 72401L10P is RoHS non-compliant. Both components are REACH unaffected and classified under EAR99 export control.

The SN74ALS236N exhibits superior electrical performance characteristics (higher data rate and faster access time) while maintaining identical supply voltage range and operating temperature specifications. The increased maximum supply current (145mA versus 35mA) reflects the faster switching performance of the substitute and must be evaluated within the context of the host system's power delivery architecture.

Both components share identical package configuration (16-DIP through-hole) and memory organization, enabling direct mechanical and functional interchange in legacy system applications.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALS236N replace the 72401L10P in existing circuit boards?

A: Yes. Both components use identical 16-DIP through-hole packaging and share the same pinout configuration for asynchronous FIFO operation. Direct mechanical substitution is possible without board modification.

Q: Are there electrical compatibility concerns when substituting the SN74ALS236N?

A: No electrical incompatibility exists. Both components operate within the 4.5V ~ 5.5V supply voltage range and share identical operating temperature specifications (0°C ~ 70°C). The SN74ALS236N's superior performance parameters (faster access time, higher data rate) do not create functional conflicts in applications designed for the 72401L10P.

Q: What is the significance of the higher maximum supply current in the SN74ALS236N?

A: The SN74ALS236N draws up to 145mA compared to the 72401L10P's 35mA maximum. This difference reflects faster internal switching speeds. System power supply capacity must accommodate this increased current draw. Verify that the host system's power delivery design supports the substitute component's current requirements.

Q: Does the RoHS compliance difference affect substitution decisions?

A: The SN74ALS236N is ROHS3 compliant while the 72401L10P is RoHS non-compliant. For new production or systems subject to RoHS regulatory requirements, the SN74ALS236N is the preferred choice. For legacy system maintenance where the original component remains in service, compliance status does not affect functional substitution.

Q: Are both components still available for procurement?

A: Both the 72401L10P and SN74ALS236N are classified as obsolete. Availability is limited to existing inventory channels. The SN74ALS236N may offer better long-term availability due to its broader historical production volume and wider industry adoption compared to the Renesas 72401L10P.