CDCP1803RTHT Equivalent & Substitute Parts

Part Overview

The CDCP1803RTHT is a Clock Fanout Buffer (Distribution), Divider, Multiplexer IC manufactured by Texas Instruments, designed for high-speed clock distribution applications. This device features a 1:3 input-to-output ratio with a maximum frequency of 800 MHz and operates across multiple input signal standards (CML, HSTL, LVCMOS, LVDS, LVTTL, SSTL-2, VML) while providing LVPECL output. The CDCP1803RTHT is currently classified as Obsolete, making identification of active equivalent parts essential for new designs and ongoing production support.

Substiute Parts

CDCP1803RTHT

Texas InstrumentsIn Stock: 1696CDCP1803RTHT Datasheet

Current PartRFQ

CDCP1803RGER

Texas InstrumentsIn Stock: 9920CDCP1803RGER Datasheet

Parametric EquivalentRFQ

CDCP1803RGET

Texas InstrumentsIn Stock: 1400CDCP1803RGET Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDCP1803RTHT is determined by strict equivalence across the following critical parameters:

• Functional Architecture: 1:3 fanout buffer configuration with identical input and output signal standards
• Frequency Performance: 800 MHz maximum operating frequency
• Signal Compatibility: Support for CML, HSTL, LVCMOS, LVDS, LVTTL, SSTL-2, and VML inputs with LVPECL output
• Electrical Specifications: 3V to 3.6V supply voltage range and -40°C to 85°C operating temperature
• Physical Form Factor: 24-VFQFN Exposed Pad package (4x4mm)
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected status

The identified substitute parts maintain identical parametric specifications across all these dimensions. Differences are limited to product status (Active vs. Obsolete) and packaging format (bulk vs. Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

Both CDCP1803RGER and CDCP1803RGET are direct parametric equivalents to the CDCP1803RTHT. The primary distinction between these substitutes is product status and packaging format:

CDCP1803RGER is the recommended primary substitute. This part maintains Active product status with Texas Instruments, ensuring ongoing manufacturing support, technical documentation availability, and supply chain continuity. It is supplied in bulk packaging format.

CDCP1803RGET is an alternative substitute with identical electrical and mechanical specifications. This part is also Active and is supplied in Tape & Reel (TR) format, suitable for automated assembly processes requiring continuous strip packaging.

Both substitutes carry ROHS3 Compliance and REACH Unaffected certifications, matching the regulatory profile of the original CDCP1803RTHT. Selection between these two should be based on packaging requirements and procurement logistics rather than technical performance.

Frequently Asked Questions (FAQ)

Q: Can CDCP1803RGER and CDCP1803RGET be used interchangeably with CDCP1803RTHT?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, frequency performance, signal standards support, and physical package dimensions. The only differences are product status (Active vs. Obsolete) and packaging format (bulk vs. Tape & Reel).

Q: What is the difference between CDCP1803RGER and CDCP1803RGET?

A: Both parts are electrically and mechanically identical. CDCP1803RGER is supplied in bulk packaging, while CDCP1803RGET is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and volume handling preferences.

Q: Why is the CDCP1803RTHT classified as Obsolete?

A: The CDCP1803RTHT has been superseded by active product variants. Texas Instruments continues to manufacture equivalent parts under the CDCP1803RGER and CDCP1803RGET designations to support ongoing applications.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. All three parts share identical pin configurations, package dimensions (24-VQFN 4x4mm), electrical operating ranges, and signal standard support. Direct board-level substitution is supported without design modifications.

Q: What packaging format should I specify for new production orders?

A: For automated assembly processes, specify CDCP1803RGET (Tape & Reel format). For manual assembly or lower-volume applications, CDCP1803RGER (bulk packaging) is appropriate. Both formats contain identical components.

Q: Are moisture sensitivity and storage requirements the same across all three parts?

A: Yes. All three parts carry MSL 2 (1 Year) rating, indicating identical moisture sensitivity levels and storage requirements. Standard ESD precautions and dry storage conditions apply uniformly.