Equivalent & Substitute Parts for 91305AMILF Zero Delay Buffer IC

Part Overview

The 91305AMILF is a Zero Delay Buffer IC manufactured by Renesas Electronics Corporation, designed for clock distribution and timing applications. This 8-SOIC surface mount device operates at frequencies up to 133MHz with a 1:5 input-to-output ratio and supports supply voltages from 3V to 3.6V. The part is classified as obsolete, making substitute components necessary for new designs and ongoing production requirements.

Substiute Parts

91305AMILF

Renesas Electronics CorporationIn Stock: 113091305AMILF Datasheet

Current PartRFQ

2305B-1DCGI

Renesas Electronics CorporationIn Stock: 28382305B-1DCGI Datasheet

MFR RecommendedRFQ

CDCVF2505D

Texas InstrumentsIn Stock: 17522CDCVF2505D Datasheet

MFR RecommendedRFQ

CDCVF2505DR

Texas InstrumentsIn Stock: 31874CDCVF2505DR Datasheet

MFR RecommendedRFQ

SL2305SI-1H

Skyworks Solutions Inc.In Stock: 1600SL2305SI-1H Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 91305AMILF is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure PCB layout compatibility without redesign.

Electrical Specifications: Substitute parts must support the same supply voltage range (3V ~ 3.6V) and operating temperature range (-40°C ~ 85°C). The input-to-output ratio of 1:5 and single circuit configuration are maintained across all substitutes.

Frequency Performance: The maximum frequency specification of 133MHz for the 91305AMILF establishes the minimum performance requirement. Substitute parts with equal or higher frequency ratings are electrically compatible.

PLL and Signal Characteristics: All substitute parts include PLL functionality. Input and output signal types may vary (Clock, LVTTL, CMOS, LVCMOS, TTL) while maintaining functional equivalence for clock distribution applications.

Differential Signaling: The 91305AMILF uses non-differential input and output. All substitute parts maintain this non-differential configuration.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - Active Status: The 2305B-1DCGI (Renesas) is the manufacturer-recommended substitute. This part maintains Renesas platform continuity, is currently in active production status, and provides ROHS3 compliance. It is electrically and mechanically identical to the 91305AMILF with enhanced PLL bypass capability.

High-Performance Alternative - Texas Instruments: The CDCVF2505D and CDCVF2505DR (Texas Instruments) offer superior frequency performance at 200MHz, exceeding the 91305AMILF specification by 50%. Both parts are in active production with ROHS3 compliance. The CDCVF2505DR is available in tape and reel packaging for high-volume applications. These parts are suitable for designs requiring additional frequency margin or future performance scaling.

Secondary Alternative - Skyworks Solutions: The SL2305SI-1H (Skyworks Solutions) provides 140MHz frequency capability and is electrically compatible. However, this part is classified as obsolete and carries a higher moisture sensitivity level (MSL 2A), requiring controlled storage conditions. This option is suitable only for legacy system maintenance where inventory exists.

Compliance Consideration: For new designs, select from active-status parts (2305B-1DCGI, CDCVF2505D, or CDCVF2505DR) to ensure long-term supply availability and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the 2305B-1DCGI directly replace the 91305AMILF without PCB modifications?

A: Yes. Both parts use identical 8-SOIC packaging, supply voltage (3V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and 1:5 input-to-output ratio. Pin-to-pin compatibility is maintained.

Q: What is the advantage of the CDCVF2505D over the 2305B-1DCGI?

A: The CDCVF2505D operates at 200MHz maximum frequency compared to 133MHz for the 2305B-1DCGI. This provides 50% additional frequency margin for applications requiring higher clock distribution speeds. Both parts maintain identical supply voltage, temperature range, and package specifications.

Q: Are there packaging differences between CDCVF2505D and CDCVF2505DR?

A: Both parts are electrically identical. The CDCVF2505D is supplied in tube packaging, while the CDCVF2505DR is supplied in cut tape and Digi-Reel format. Selection depends on production volume and handling requirements.

Q: Why is the SL2305SI-1H listed as a substitute if it is obsolete?

A: The SL2305SI-1H is electrically compatible and meets all core substitution criteria. However, its obsolete status and higher moisture sensitivity level (MSL 2A) make it suitable only for legacy system maintenance where existing inventory is available. New designs should use active-status alternatives.

Q: What does MSL 1 (Unlimited) mean compared to MSL 2A (4 Weeks)?

A: MSL 1 indicates unlimited shelf life without moisture absorption concerns. MSL 2A requires storage in controlled humidity conditions and limits shelf life to 4 weeks after packaging opening. The 91305AMILF and all recommended substitutes except SL2305SI-1H carry MSL 1 rating.

Q: Are all substitute parts ROHS3 compliant?

A: The 2305B-1DCGI, CDCVF2505D, and CDCVF2505DR are ROHS3 compliant. The 91305AMILF and SL2305SI-1H do not specify RoHS status. For applications requiring RoHS compliance, use the three compliant alternatives.