CDCM1802RGTTG4 Equivalent & Substitute Parts

Part Overview

The CDCM1802RGTTG4 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 currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

CDCM1802RGTTG4

Texas InstrumentsIn Stock: 1117CDCM1802RGTTG4 Datasheet

Current PartRFQ

CDCM1802RGTR

Texas InstrumentsIn Stock: 1364CDCM1802RGTR Datasheet

Parametric EquivalentRFQ

CDCM1802RGTT

Texas InstrumentsIn Stock: 1958CDCM1802RGTT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDCM1802RGTTG4 is based on strict electrical and mechanical parameter matching. The following criteria determine valid equivalents:

Critical Matching Parameters:

• 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 below match these parameters exactly. Differences exist only in product status and packaging format (bulk vs. tape & reel).

Parameter Comparison

Engineering Selection Recommendations

CDCM1802RGTR is the primary substitute for CDCM1802RGTTG4. Both parts are identical in electrical and mechanical specifications. CDCM1802RGTR maintains Active product status, ensuring long-term availability and supply chain continuity. This part is supplied in bulk packaging format, matching the original part's packaging configuration.

CDCM1802RGTT is an alternative substitute with identical electrical and mechanical specifications. This part is supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes. CDCM1802RGTT maintains Active product status and is recommended for high-volume production environments where tape & reel packaging provides manufacturing efficiency.

Both substitute parts are ROHS3 Compliant and REACH Unaffected, meeting the same regulatory requirements as the original part.

Frequently Asked Questions (FAQ)

Q: Can CDCM1802RGTR and CDCM1802RGTT be used interchangeably with CDCM1802RGTTG4?

A: Yes. All three parts are parametrically equivalent. They share identical electrical specifications (1:2 ratio, 800 MHz maximum frequency, 3V ~ 3.6V supply voltage, differential input/output), signal type support (LVCMOS, LVPECL, LVTTL input; LVCMOS, LVPECL output), operating temperature range (-40°C ~ 85°C), and package configuration (16-VFQFN Exposed Pad, 16-VQFN 3x3). The only differences are product status and packaging format.

Q: What is the difference between bulk and Tape & Reel (TR) packaging?

A: Bulk packaging (CDCM1802RGTR) supplies components in standard containers suitable for manual or semi-automated assembly. Tape & Reel packaging (CDCM1802RGTT) supplies components on continuous tape wound on reels, optimized for high-speed automated pick-and-place assembly equipment. Both formats contain the same component with identical specifications.

Q: Why is CDCM1802RGTTG4 discontinued?

A: The original part is discontinued at DiGi Electronics. However, parametrically equivalent alternatives (CDCM1802RGTR and CDCM1802RGTT) remain in Active status with available inventory, providing direct substitution without design modification.

Q: Are there any compliance or regulatory differences between these parts?

A: No. All three parts maintain identical RoHS3 Compliance and REACH Unaffected status. Moisture Sensitivity Level (MSL) is 2 (1 Year) for all parts. No design or assembly process changes are required when substituting between these parts.

Q: Which substitute should I select for new designs?

A: For new designs, select based on assembly process requirements. Use CDCM1802RGTR for manual or semi-automated assembly with bulk packaging. Use CDCM1802RGTT for high-volume automated assembly requiring tape & reel format. Both parts are electrically and mechanically identical to the original specification.