ICS281PGT Clock/Frequency Synthesizer Equivalent & Substitute Parts

Part Overview

The ICS281PGT is a Clock/Frequency Synthesizer IC manufactured by Renesas Electronics Corporation, designed for 200MHz operation in a 16-TSSOP surface mount package. This part is classified as Obsolete, which necessitates identification of active equivalent alternatives for new designs and production continuity. The VersaClock® series provides direct functional substitutes with maintained electrical and mechanical specifications.

Substiute Parts

ICS281PGT

Renesas Electronics CorporationIn Stock: 1193ICS281PGT Datasheet

Current PartRFQ

281PGLFT

Renesas Electronics CorporationIn Stock: 871281PGLFT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICS281PGT is determined by strict equivalence across the following critical parameters:

• Maximum frequency operation: 200MHz
• Package type and dimensions: 16-TSSOP (0.173", 4.40mm Width)
• Supply voltage range: 3.135V ~ 3.465V
• PLL architecture: Yes with Bypass capability
• Input signal types: Clock and Crystal
• Output signal type: CMOS
• Input to Output ratio: 1:3
• Divider and Multiplier functionality: Both present
• Operating temperature range: 0°C ~ 70°C
• Mounting configuration: Surface Mount

The 281PGLFT meets all these parameters and is classified as Active product status, making it a direct functional equivalent for the obsolete ICS281PGT.

Parameter Comparison

Engineering Selection Recommendations

The 281PGLFT is the direct substitute for the ICS281PGT based on complete electrical and mechanical parameter equivalence. The primary distinction is product lifecycle status: the ICS281PGT is Obsolete while the 281PGLFT is Active, ensuring continued availability and manufacturing support.

The 281PGLFT provides additional compliance advantage through ROHS3 certification, whereas the ICS281PGT is RoHS non-compliant. Both parts maintain identical REACH Unaffected and EAR99 ECCN classifications. For new designs and production applications, the 281PGLFT is the appropriate selection due to active product status and enhanced regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the 281PGLFT directly replace the ICS281PGT in existing designs?

A: Yes. The 281PGLFT maintains identical electrical specifications, frequency range, supply voltage, operating temperature, package dimensions, and functional architecture. No circuit modifications are required for direct substitution.

Q: Are there differences in pin configuration between these parts?

A: Both parts use the 16-TSSOP package with identical dimensions (0.173", 4.40mm Width). Pin configuration and functionality are equivalent.

Q: What is the significance of the RoHS compliance difference?

A: The 281PGLFT is ROHS3 compliant while the ICS281PGT is RoHS non-compliant. For applications subject to RoHS regulations, the 281PGLFT is the required selection.

Q: Why is the ICS281PGT classified as Obsolete?

A: Obsolete status indicates the part is no longer in active production. The 281PGLFT serves as the active equivalent for continued supply and support.

Q: Are the supply voltage ranges identical?

A: Yes. Both parts operate within the 3.135V ~ 3.465V supply voltage range with identical operating temperature specifications of 0°C ~ 70°C.

Q: Is the PLL bypass functionality maintained in the substitute?

A: Yes. The 281PGLFT retains the PLL with Bypass capability, input flexibility (Clock and Crystal), and 1:3 input-to-output ratio identical to the ICS281PGT.