Equivalent & Substitute Parts for 83905AMLFT

Part Overview

The 83905AMLFT is a Clock Fanout Buffer (Distribution) IC manufactured by Renesas Electronics Corporation, designed for 1:6 clock distribution at 100 MHz. This 16-SOIC surface mount device accepts crystal input and provides LVCMOS/LVTTL outputs across a supply voltage range of 1.6V to 3.465V. The part is classified as obsolete, making identification of active equivalent and substitute components essential for ongoing system support and new design implementations.

Substiute Parts

83905AMLFT

Renesas Electronics CorporationIn Stock: 96983905AMLFT Datasheet

Current PartRFQ

5PB1106CMGI8

Renesas Electronics CorporationIn Stock: 7985PB1106CMGI8 Datasheet

MFR RecommendedRFQ

NB3H83905CDR2G

onsemiIn Stock: 1595NB3H83905CDR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 83905AMLFT are identified based on the following core electrical and mechanical parameters:

Primary Substitution Criteria:

• Fanout Buffer (Distribution) IC type with 1:6 input-to-output ratio
• Surface mount packaging compatible with 16-pin configurations
• Output signal types supporting LVCMOS and/or LVTTL logic levels
• Supply voltage range encompassing or exceeding 1.6V ~ 3.465V
• Operating frequency capability at or above 100 MHz
• RoHS3 compliance and MSL Level 1 rating

Substitute Categories:

1. Direct Package Equivalent (NB3H83905CDR2G): Maintains identical 16-SOIC package footprint, matching input/output signal types, and identical frequency specification. Extended operating temperature range and active product status.

2. Enhanced Performance Alternative (5PB1106CMGI8): Provides superior frequency capability (200 MHz) with 1:6 distribution ratio in a 16-UFQFN package. Operates across multiple supply voltage domains with active product status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (NB3H83905CDR2G): Select this substitute when PCB layout and mechanical constraints require identical 16-SOIC package footprint. This part maintains electrical compatibility with the original 83905AMLFT across all specified parameters while offering active product status and extended operating temperature range (-40°C to 85°C versus 0°C to 70°C). onsemi manufacturing ensures supply chain continuity and long-term availability.

For Performance Enhancement (5PB1106CMGI8): Select this substitute when system design permits package migration to 16-UFQFN and when higher frequency capability (200 MHz) provides design margin or supports future performance requirements. This part operates across discrete supply voltage domains and maintains 1:6 distribution functionality. PCB redesign is required due to different package footprint.

Both substitutes maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can NB3H83905CDR2G be used as a direct drop-in replacement for 83905AMLFT?

A: Yes. Both parts share identical 16-SOIC package footprint, matching pin configuration, and equivalent electrical specifications for frequency (100 MHz), supply voltage range (1.6V ~ 3.465V), and input/output signal types. No PCB modifications are required.

Q: What is the primary advantage of 5PB1106CMGI8 over the original 83905AMLFT?

A: The 5PB1106CMGI8 provides doubled maximum frequency capability (200 MHz versus 100 MHz) and operates across multiple discrete supply voltage domains. However, it requires a different 16-UFQFN package footprint, necessitating PCB redesign.

Q: Are there input signal compatibility differences between the substitutes?

A: Yes. The 83905AMLFT accepts Crystal input exclusively. The NB3H83905CDR2G accepts Crystal, LVCMOS, and LVTTL inputs, providing greater input flexibility. The 5PB1106CMGI8 accepts LVCMOS input only. System design must verify input signal source compatibility.

Q: Do the substitutes support the same operating temperature range?

A: No. The 83905AMLFT operates from 0°C to 70°C. Both substitutes extend this range to -40°C to 85°C, providing wider environmental coverage suitable for industrial and extended-temperature applications.

Q: What packaging considerations apply when selecting between substitutes?

A: The NB3H83905CDR2G maintains the original 16-SOIC package, requiring no PCB layout changes. The 5PB1106CMGI8 uses a smaller 16-UFQFN (2.5x2.5mm) package, enabling reduced board space but requiring PCB redesign and updated assembly procedures.

Q: Are both substitutes RoHS3 compliant?

A: Yes. Both NB3H83905CDR2G and 5PB1106CMGI8 are ROHS3 compliant with MSL Level 1 rating, matching the original part's environmental and regulatory status.