Equivalent & Substitute Parts for 511MILFT Clock Generator IC

Part Overview

The 511MILFT is a Clock Generator IC manufactured by Renesas Electronics Corporation, designed for 160MHz operation in an 8-SOIC package. This component belongs to the LOCO™ series and is classified as obsolete. Due to its obsolete status, identifying functionally compatible substitute parts is essential for design continuity, production support, and system maintenance. Substitute parts must maintain compatibility across critical electrical parameters including frequency range, supply voltage, output type, and physical packaging to ensure seamless integration into existing designs.

Substiute Parts

511MILFT

Renesas Electronics CorporationIn Stock: 1107511MILFT Datasheet

Current PartRFQ

9FGV1006C001LTGI8

Renesas Electronics CorporationIn Stock: 7929FGV1006C001LTGI8 Datasheet

MFR RecommendedRFQ

NB3N502DG

onsemiIn Stock: 1547NB3N502DG Datasheet

MFR RecommendedRFQ

NB3N502DR2G

onsemiIn Stock: 3083NB3N502DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 511MILFT are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Clock Generator or PLL Clock Multiplier functionality with integrated PLL
• Input support for Clock and/or Crystal sources
• Output capability in CMOS or TTL logic families
• Maximum frequency operation at or above 160MHz
• Supply voltage range overlap with 3.135V ~ 5.25V
• Operating temperature range of -40°C ~ 85°C
• Surface mount packaging with 8-SOIC form factor
• ROHS3 compliance and equivalent moisture sensitivity

Identified Substitute Parts:

1. NB3N502DR2G and NB3N502DG (onsemi) – Direct package and footprint compatible substitutes with identical 8-SOIC packaging, PLL with bypass capability, 190MHz maximum frequency, and overlapping supply voltage range (3V ~ 5.5V). Both parts support Clock and Crystal inputs with CMOS and TTL outputs.

2. 9FGV1006C001LTGI8 (Renesas Electronics Corporation) – Higher-performance alternative with extended frequency capability (200MHz, 325MHz), multiple input types (HCSL, LVCMOS, LVDS, Crystal), and advanced output options (CML, HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL). Requires PCB redesign due to 16-TFLGA package format.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No PCB Redesign):

The NB3N502DR2G and NB3N502DG are the primary substitutes for the 511MILFT. Both parts maintain identical 8-SOIC packaging, enabling direct footprint compatibility without PCB layout modifications. The onsemi NB3N502 series operates at 190MHz maximum frequency, exceeding the 511MILFT's 160MHz specification. Supply voltage range (3V ~ 5.5V) encompasses the original part's operating window (3.135V ~ 5.25V). Both parts feature PLL with bypass capability, Clock and Crystal input support, and CMOS/TTL output options. The NB3N502DR2G is supplied in Tape & Reel packaging with 2978 units in stock, while the NB3N502DG is supplied in Tube packaging with 1502 units in stock. Both are ROHS3 compliant and active products with unlimited moisture sensitivity rating (MSL 1).

For Enhanced Performance (PCB Redesign Required):

The 9FGV1006C001LTGI8 represents a higher-performance alternative from Renesas Electronics Corporation, suitable for applications requiring extended frequency capability or advanced signal conditioning. This part operates at 200MHz and 325MHz, supports multiple input standards (HCSL, LVCMOS, LVDS, Crystal), and provides diverse output options (CML, HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL). The 16-TFLGA package requires PCB redesign and is not a direct footprint replacement. Supply voltage flexibility includes 1.71V ~ 1.89V, 2.375V ~ 2.625V, and 3.135V ~ 3.465V ranges. This part is active with 768 units in stock and ROHS3 compliant, though it carries MSL 3 rating (168 hours moisture sensitivity).

Frequently Asked Questions (FAQ)

Q: Can NB3N502DR2G and NB3N502DG be used interchangeably with 511MILFT without PCB modifications?

A: Yes. Both onsemi parts share identical 8-SOIC packaging and footprint with the 511MILFT. No PCB layout changes are required. The primary difference is packaging format: NB3N502DR2G is supplied in Tape & Reel, while NB3N502DG is supplied in Tube. Electrical performance is equivalent between the two variants.

Q: What is the frequency headroom when substituting with NB3N502 series?

A: The NB3N502 series operates at 190MHz maximum, compared to the 511MILFT's 160MHz. This provides 30MHz additional frequency capability, ensuring compatibility with designs operating at or below 160MHz with margin for signal integrity.

Q: Does the 9FGV1006C001LTGI8 require design changes beyond PCB layout?

A: Yes. The 9FGV1006C001LTGI8 uses a 16-TFLGA package versus the 8-SOIC format of the 511MILFT. PCB footprint redesign is mandatory. Additionally, the part supports multiple input and output standards not present in the original design, requiring firmware or configuration evaluation to ensure compatibility with existing signal interfaces.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 511MILFT, NB3N502DR2G, NB3N502DG, and 9FGV1006C001LTGI8 are all ROHS3 compliant. All parts are REACH unaffected and classified under ECCN EAR99 with HTSUS code 8542.39.0001.

Q: What is the moisture sensitivity difference between substitutes?

A: The NB3N502 series (both variants) carries MSL 1 rating with unlimited moisture sensitivity, matching the 511MILFT. The 9FGV1006C001LTGI8 carries MSL 3 rating with 168-hour moisture sensitivity, requiring stricter handling and storage protocols during manufacturing and assembly.

Q: Which substitute offers the best inventory availability?

A: The NB3N502DR2G offers the highest inventory with 2978 units in stock. The NB3N502DG has 1502 units available. The 9FGV1006C001LTGI8 has 768 units in stock. All three parts are currently active products with established supply chains.