Equivalent & Substitute Parts for 501AMLFT

Part Overview

The 501AMLFT is a Clock Generator IC manufactured by Renesas Electronics Corporation, designed for 200MHz operation in an 8-SOIC package. This device features a Phase-Locked Loop (PLL) with 1:1 input-to-output ratio, accepting clock or crystal inputs and delivering CMOS outputs. The part operates within a 3V to 3.6V supply range and is rated for 0°C to 70°C operating temperatures.

The 501AMLFT is classified as Obsolete. Locating equivalent or substitute components is necessary for ongoing system support, maintenance, and new design implementations where this legacy device is specified.

Substiute Parts

501AMLFT

Renesas Electronics CorporationIn Stock: 3119501AMLFT Datasheet

Current PartRFQ

5L2503-000NVGI8

Renesas Electronics CorporationIn Stock: 50875L2503-000NVGI8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 501AMLFT requires evaluation against the following critical parameters:

• Frequency Range: Maximum operating frequency must support or exceed 200MHz
• PLL Capability: Phase-Locked Loop functionality must be present
• Input/Output Configuration: Clock or crystal input capability with CMOS output delivery
• Supply Voltage Compatibility: Operating voltage range must overlap or encompass 3V to 3.6V
• Package Form Factor: Surface mount configuration with compatible pinout and thermal characteristics
• Temperature Rating: Operating temperature range must cover or exceed 0°C to 70°C

The substitute part 5L2503-000NVGI8 is identified as a manufacturer-recommended alternative. However, this substitute exhibits significant parameter divergence from the 501AMLFT, including reduced maximum frequency (32.768kHz versus 200MHz), different input/output ratio (1:3 versus 1:1), lower supply voltage range (1.71V to 1.89V versus 3V to 3.6V), and different package form (12-UFDFN versus 8-SOIC). Direct substitution is not recommended based on functional and electrical parameter alignment.

Parameter Comparison

Engineering Selection Recommendations

The 501AMLFT is an obsolete product with limited availability. The 5L2503-000NVGI8 is listed as a manufacturer-recommended substitute and carries Active product status with higher inventory availability.

However, functional substitution requires careful circuit-level evaluation. The 5L2503-000NVGI8 operates at significantly lower maximum frequency (32.768kHz), operates at lower supply voltages (1.71V to 1.89V), and features a different input-to-output ratio (1:3 versus 1:1). These parameters indicate the substitute is designed for different application classes, primarily real-time clock and low-frequency timing applications rather than high-speed clock generation.

The 5L2503-000NVGI8 does provide extended operating temperature range (-40°C to 85°C) and Active product status, supporting long-term availability and supply chain continuity. RoHS3 compliance is confirmed for the substitute part.

For applications requiring 200MHz clock generation with 3V to 3.6V supply operation, alternative clock generator ICs from Renesas or other manufacturers with matching frequency and voltage specifications should be evaluated. For applications tolerant of lower frequency operation and lower supply voltages, the 5L2503-000NVGI8 represents an available alternative with manufacturer endorsement.

Frequently Asked Questions (FAQ)

Q: Can the 5L2503-000NVGI8 directly replace the 501AMLFT in existing designs?

A: Direct replacement is not recommended. The substitute operates at 32.768kHz maximum frequency compared to the 501AMLFT's 200MHz specification. Supply voltage requirements differ (1.71V to 1.89V versus 3V to 3.6V), and package form factors are incompatible (12-UFDFN versus 8-SOIC). Circuit redesign would be required.

Q: What is the primary application difference between these two parts?

A: The 501AMLFT is a high-speed clock generator for applications requiring 200MHz operation. The 5L2503-000NVGI8 is a low-frequency timing device optimized for 32.768kHz crystal oscillator applications, typically used in real-time clock circuits.

Q: Are both parts manufactured by the same company?

A: Yes, both the 501AMLFT and 5L2503-000NVGI8 are manufactured by Renesas Electronics Corporation.

Q: What is the package compatibility status?

A: The packages are not compatible. The 501AMLFT uses 8-SOIC (0.154", 3.90mm Width) while the 5L2503-000NVGI8 uses 12-UFDFN (2.5x2.5). PCB layout and footprint modifications would be necessary.

Q: Does the substitute part offer improved compliance or reliability?

A: The 5L2503-000NVGI8 carries Active product status and RoHS3 compliance, compared to the Obsolete status of the 501AMLFT. The substitute provides extended operating temperature range (-40°C to 85°C versus 0°C to 70°C). Both parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What should be evaluated before considering the 5L2503-000NVGI8 as a substitute?

A: Evaluate maximum frequency requirements, supply voltage availability in the target system, input signal type (clock versus crystal), output loading characteristics, and operating temperature range. The substitute is suitable only for applications where 32.768kHz frequency operation is acceptable and 1.71V to 1.89V supply voltage is available.