CDCVF857RHARG4 Equivalent & Substitute Parts

Part Overview

The CDCVF857RHARG4 is a PLL Clock Driver IC manufactured by Texas Instruments, designed for high-speed clock distribution applications with a maximum frequency of 220MHz. This device features differential SSTL-2 input and output, operates from a 2.3V to 2.7V supply, and is housed in a 40-VFQFN package with exposed pad for optimal thermal performance.

The CDCVF857RHARG4 is classified as obsolete. Identifying equivalent substitute parts is essential for design continuity, procurement flexibility, and long-term product support in applications where this component is specified.

Substiute Parts

CDCVF857RHARG4

Texas InstrumentsIn Stock: 1472CDCVF857RHARG4 Datasheet

Current PartRFQ

CDCVF857RHAT

Texas InstrumentsIn Stock: 1689CDCVF857RHAT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDCVF857RHARG4 is determined by strict equivalence across the following critical parameters:

• Frequency specification (220MHz maximum)
• Differential input and output signal compatibility (SSTL-2)
• Input-to-output ratio (2:11)
• Supply voltage range (2.3V ~ 2.7V)
• Package type (40-VFQFN with exposed pad)
• Operating temperature range (-40°C ~ 85°C)
• Compliance certifications (ROHS3, REACH Unaffected)

The CDCVF857RHAT meets all these criteria and qualifies as a direct substitute. The primary distinction between these parts is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The CDCVF857RHAT is the direct substitute for the CDCVF857RHARG4. Both parts are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The CDCVF857RHAT holds active product status, ensuring ongoing availability and manufacturer support, whereas the CDCVF857RHARG4 is obsolete.

Both parts maintain ROHS3 compliance and REACH Unaffected status, meeting environmental and regulatory requirements. The packaging difference—bulk versus Tape & Reel format—does not affect functional compatibility and is determined by procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the CDCVF857RHAT directly replace the CDCVF857RHARG4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The CDCVF857RHAT operates at the same frequency (220MHz), accepts the same input signal type (SSTL-2 differential), produces the same output (SSTL-2 differential), maintains the same 2:11 ratio, and operates within the same supply voltage (2.3V ~ 2.7V) and temperature ranges (-40°C ~ 85°C). The 40-VFQFN package footprint is identical.

Q: What is the difference between CDCVF857RHARG4 and CDCVF857RHAT?

A: The primary differences are product status and packaging format. The CDCVF857RHARG4 is obsolete and supplied in bulk packaging, while the CDCVF857RHAT is active and supplied in Tape & Reel format. All functional and electrical parameters are identical.

Q: Why is the CDCVF857RHARG4 marked as obsolete?

A: Obsolete status indicates that Texas Instruments has discontinued active production and support for this specific part number variant. The CDCVF857RHAT remains in active production and is the recommended part for new designs and ongoing procurement.

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

A: No. Both parts maintain ROHS3 compliance and REACH Unaffected status. Moisture Sensitivity Level (MSL) is identical at 3 (168 Hours) for both parts.

Q: Does the Tape & Reel packaging of the CDCVF857RHAT affect compatibility?

A: No. Tape & Reel is a packaging and delivery format used for automated assembly processes. It does not affect the electrical performance, pin configuration, or functional operation of the component. The die and package specifications remain identical.