CDCM1802RGTRG4 Equivalent & Substitute Parts

Part Overview

The CDCM1802RGTRG4 is a Clock Fanout Buffer (Distribution), Divider, Multiplexer IC manufactured by Texas Instruments. This device functions as a 1:2 clock buffer with a maximum frequency of 800 MHz, supporting differential input and output configurations. The part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and procurement planning. Active alternatives with identical electrical and mechanical specifications are available to ensure design continuity.

Substiute Parts

CDCM1802RGTRG4

Texas InstrumentsIn Stock: 913CDCM1802RGTRG4 Datasheet

Current PartRFQ

CDCM1802RGTR

Texas InstrumentsIn Stock: 1364CDCM1802RGTR Datasheet

MFR RecommendedRFQ

CDCM1802RGTT

Texas InstrumentsIn Stock: 1958CDCM1802RGTT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDCM1802RGTRG4 is determined by strict equivalence across all electrical and mechanical parameters. The following criteria define valid substitutes:

Critical Parameters for Substitution:

• Ratio - Input:Output: 1:2
• Differential - Input:Output: Yes/Yes
• Input Signal Types: LVCMOS, LVPECL, LVTTL
• Output Signal Types: LVCMOS, LVPECL
• Frequency - Max: 800 MHz
• Voltage - Supply: 3V ~ 3.6V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-VFQFN Exposed Pad
• Supplier Device Package: 16-VQFN (3x3)

All substitute parts listed maintain identical electrical specifications and physical packaging. Differences are limited to product status (active vs. discontinued) and packaging format (bulk vs. tape & reel).

Parameter Comparison

Engineering Selection Recommendations

CDCM1802RGTR is the manufacturer-recommended substitute for the discontinued CDCM1802RGTRG4. Both parts are identical in electrical specifications and physical packaging. CDCM1802RGTR maintains active product status and is available in bulk packaging format, matching the original part's distribution method.

CDCM1802RGTT is a parametric equivalent offering identical electrical and mechanical specifications. This part differs only in packaging format, supplied in Tape & Reel (TR) configuration. Selection of CDCM1802RGTT is appropriate for high-volume manufacturing environments where automated tape & reel handling is standard.

All three parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can CDCM1802RGTR be used as a direct replacement for CDCM1802RGTRG4?

A: Yes. CDCM1802RGTR is electrically and mechanically identical to CDCM1802RGTRG4. Both support 1:2 clock distribution at 800 MHz with differential input and output, operate at 3V to 3.6V supply voltage, and use the 16-VQFN (3x3) package. The primary difference is product status: CDCM1802RGTR is active while CDCM1802RGTRG4 is discontinued.

Q: What is the difference between CDCM1802RGTR and CDCM1802RGTT?

A: The electrical and mechanical specifications are identical. The difference is packaging format: CDCM1802RGTR is supplied in bulk packaging, while CDCM1802RGTT is supplied in Tape & Reel (TR) format. Selection depends on procurement and assembly requirements.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All three parts—CDCM1802RGTRG4, CDCM1802RGTR, and CDCM1802RGTT—are ROHS3 compliant and REACH unaffected.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All parts have MSL 2 with a 1-year floor life rating. Standard moisture control procedures during storage and handling are required.

Q: Can these parts operate at frequencies below 800 MHz?

A: Yes. The 800 MHz specification is the maximum operating frequency. These parts function at lower frequencies within the specified operating temperature range of -40°C to 85°C.

Q: Are the input and output signal types identical across all three parts?

A: Yes. All parts accept LVCMOS, LVPECL, and LVTTL input signals and support LVCMOS and LVPECL output signals.