ICS542MT Clock Fanout Buffer Equivalent & Substitute Parts

Part Overview

The ICS542MT is a Clock Fanout Buffer (Distribution), Divider IC manufactured by Renesas Electronics Corporation, designed for 1:2 clock distribution at frequencies up to 156 MHz. This device features CMOS input and 3-State CMOS output in an 8-SOIC surface mount package.

The ICS542MT is classified as obsolete. Due to its discontinued status, identifying functionally equivalent substitute parts is essential for system redesign, board revisions, and long-term supply chain planning. Substitute parts must maintain identical electrical specifications and package compatibility to ensure direct replacement capability.

Substiute Parts

ICS542MT

Renesas Electronics CorporationIn Stock: 1209ICS542MT Datasheet

Current PartRFQ

542MLFT

Renesas Electronics CorporationIn Stock: 6104542MLFT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ICS542MT are identified based on strict equivalence of the following critical parameters:

• Functional Type: Fanout Buffer (Distribution), Divider
• Number of Circuits: 1
• Input:Output Ratio: 1:2
• Maximum Frequency: 156 MHz
• Input Signal Type: CMOS
• Output Signal Type: 3-State, CMOS
• Supply Voltage Range: 3V ~ 5.5V
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 8-SOIC (0.154", 3.90mm Width)

The substitute part 542MLFT meets all electrical and mechanical requirements for direct substitution. Both parts share identical functional specifications, pin configurations, and package dimensions, enabling seamless integration into existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The 542MLFT serves as a direct electrical and mechanical equivalent to the ICS542MT. Both parts are manufactured by Renesas Electronics Corporation and share identical functional specifications, electrical characteristics, and 8-SOIC package dimensions.

A key distinction exists in regulatory compliance: the ICS542MT is RoHS non-compliant, while the 542MLFT is ROHS3 compliant. For applications subject to RoHS directives or environmental regulations, the 542MLFT is the appropriate selection. Both parts maintain REACH Unaffected status and carry the same ECCN and HTSUS classifications.

Selection between these parts should be based on compliance requirements specific to the application and target market. From a functional standpoint, either part will perform identically in the circuit.

Frequently Asked Questions (FAQ)

Q: Can the 542MLFT replace the ICS542MT in existing designs?

A: Yes. The 542MLFT is electrically and mechanically equivalent to the ICS542MT. Both parts feature identical 1:2 clock distribution at 156 MHz, CMOS input/output characteristics, supply voltage range (3V ~ 5.5V), operating temperature range (0°C ~ 70°C), and 8-SOIC package configuration. Direct substitution is possible without circuit modifications.

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

A: The primary difference is RoHS compliance status. The ICS542MT is RoHS non-compliant, while the 542MLFT is ROHS3 compliant. All electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 8-SOIC (0.154", 3.90mm Width) package with identical pinout and mechanical dimensions. PCB layout and footprint compatibility is guaranteed.

Q: What is the moisture sensitivity level for these parts?

A: Both the ICS542MT and 542MLFT carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Why is the ICS542MT classified as obsolete?

A: The ICS542MT is a discontinued product from Renesas Electronics Corporation. The 542MLFT remains available as a functionally equivalent alternative for ongoing supply requirements.