ICS542M Equivalent & Substitute Parts

Part Overview

The ICS542M is a clock fanout buffer (distribution) and divider IC manufactured by Renesas Electronics Corporation. It functions as a 1:2 clock distribution device with a maximum frequency of 156 MHz, designed for applications requiring clock signal buffering and distribution in digital systems. The ICS542M is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

ICS542M

Renesas Electronics CorporationIn Stock: 1472ICS542M Datasheet

Current PartRFQ

542MLF

Renesas Electronics CorporationIn Stock: 2487542MLF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICS542M is determined by strict equivalence across the following critical parameters:

• Functional Type: Fanout Buffer (Distribution), Divider with 1:2 input-to-output ratio
• Signal Characteristics: CMOS input, 3-State CMOS output
• Maximum Operating Frequency: 156 MHz
• Supply Voltage Range: 3V ~ 5.5V
• Operating Temperature Range: 0°C ~ 70°C
• Package Configuration: 8-SOIC (0.154", 3.90mm Width) surface mount
• Electrical Interface: Differential input/output configuration (No/No)

The substitute part 542MLF meets all these criteria and is manufactured by the same supplier (Renesas Electronics Corporation), ensuring functional and electrical compatibility with the original ICS542M design.

Parameter Comparison

Engineering Selection Recommendations

The 542MLF serves as a direct functional equivalent to the ICS542M. Both parts are manufactured by Renesas Electronics Corporation and share identical electrical specifications, package configuration, and operational parameters. The primary distinction between these parts is regulatory compliance status: the 542MLF achieves ROHS3 compliance, whereas the ICS542M is RoHS non-compliant. For applications subject to RoHS directives or environmental regulations, the 542MLF is the appropriate selection. Both parts maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99). The 542MLF is currently available in higher inventory quantities (2400 Pcs) compared to the ICS542M (1414 Pcs), supporting supply chain continuity for ongoing production and maintenance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 542MLF be used as a direct replacement for the ICS542M in existing designs?

A: Yes. The 542MLF is electrically and functionally identical to the ICS542M across all critical parameters: 1:2 clock distribution ratio, 156 MHz maximum frequency, CMOS input/3-State CMOS output configuration, 3V to 5.5V supply voltage range, 0°C to 70°C operating temperature, and 8-SOIC surface mount package. Pin-for-pin compatibility is maintained.

Q: What is the difference between ICS542M and 542MLF?

A: The primary difference is RoHS compliance status. The 542MLF is ROHS3 compliant, while the ICS542M is RoHS non-compliant. Both parts are otherwise electrically and mechanically identical. The 542MLF also features higher current inventory availability.

Q: Are there any package or pinout differences between these parts?

A: No. Both the ICS542M and 542MLF use the identical 8-SOIC (0.154", 3.90mm Width) surface mount package with the same pinout configuration. PCB layout and footprint requirements are unchanged.

Q: What is the relationship between ICS542M and the base product number?

A: The ICS542M is a variant of the base product ICS542. The 542MLF is a variant of the base product 542M. Both variants maintain the same functional specifications and are manufactured by Renesas Electronics Corporation.

Q: Are both parts still in production?

A: Both the ICS542M and 542MLF are classified as obsolete products. However, inventory is available from authorized distributors. The 542MLF currently has higher stock levels (2400 Pcs) compared to the ICS542M (1414 Pcs).