PI6CVF857AE Equivalent & Substitute Parts

Part Overview

The PI6CVF857AE is a Memory DDR SDRAM DIMM Clock Buffer/Driver IC manufactured by Diodes Incorporated, operating at 220MHz with 1 output circuit. This component is classified as Obsolete, making identification of functionally equivalent alternatives essential for system redesign, legacy board reproduction, or inventory replacement scenarios. The part operates within the 2.3V to 2.7V supply voltage range and is housed in a 48-TFSOP surface mount package.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI6CVF857AE
Manufacturer	Diodes Incorporated
Category	Clock/Timing
Description	IC CLK BUF DDR 220MHZ 1CIRC
Product Status	Obsolete
Frequency - Max	220MHz
Number of Circuits	1
Input/Output Type	SSTL-2 / SSTL-2
Differential Input/Output	Yes / Yes
Ratio - Input:Output	1:10
Voltage - Supply	2.3V ~ 2.7V
Operating Temperature	-40°C ~ 85°C
Package / Case	48-TFSOP (0.240", 6.10mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the PI6CVF857AE are identified based on the following critical parameters that determine functional equivalence:

Frequency Rating: Maximum operating frequency of 220MHz
Package Type: 48-TFSOP surface mount package with identical 0.240" (6.10mm) width
Signal Interface: SSTL-2 differential input and output compatibility
Supply Voltage Range: 2.3V to 2.7V operation
Operating Temperature Range: -40°C to 85°C
Number of Circuits: Single circuit configuration
Differential Signaling: Both input and output differential capability

The substitute parts CDCVF857DGG and CDCVF857DGGR, manufactured by Texas Instruments, meet all critical electrical and mechanical parameters. Both are Active status products with ROHS3 compliance, providing long-term availability and regulatory compliance advantages over the Obsolete PI6CVF857AE.

Parameter Comparison

Parameter	PI6CVF857AE (Diodes)	CDCVF857DGG (TI)	CDCVF857DGGR (TI)
Manufacturer	Diodes Incorporated	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active
Frequency - Max	220MHz	220MHz	220MHz
Number of Circuits	1	1	1
Input Type	SSTL-2	SSTL-2	SSTL-2
Output Type	SSTL-2	SSTL-2	SSTL-2
Differential Input/Output	Yes / Yes	Yes / Yes	Yes / Yes
Voltage - Supply	2.3V ~ 2.7V	2.3V ~ 2.7V	2.3V ~ 2.7V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	48-TFSOP (0.240", 6.10mm Width)	48-TFSOP (0.240", 6.10mm Width)	48-TFSOP (0.240", 6.10mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	2 (1 Year)	2 (1 Year)
Packaging Format	Bulk	Bulk	Tape & Reel (TR)

Engineering Selection Recommendations

Both CDCVF857DGG and CDCVF857DGGR are suitable substitutes for the PI6CVF857AE based on electrical and mechanical compatibility. The Texas Instruments alternatives offer the advantage of Active product status, ensuring continued availability and manufacturer support. Both substitute parts maintain ROHS3 compliance and identical package specifications.

The primary distinction between the two Texas Instruments options is packaging format: CDCVF857DGG is supplied in bulk packaging, while CDCVF857DGGR is supplied in Tape & Reel format. Selection between these variants depends on assembly process requirements and volume considerations. The MSL rating difference (MSL 1 versus MSL 2) reflects standard industry variations and does not impact functional equivalence for this application.

Frequently Asked Questions (FAQ)

Q: Can CDCVF857DGG and CDCVF857DGGR be used interchangeably with PI6CVF857AE?

A: Yes. Both Texas Instruments parts meet all critical electrical parameters: 220MHz frequency rating, SSTL-2 differential signaling, 2.3V to 2.7V supply voltage, and identical 48-TFSOP package dimensions. Functional compatibility is established.

Q: What is the difference between CDCVF857DGG and CDCVF857DGGR?

A: The parts are electrically identical. The primary difference is packaging format: CDCVF857DGG is supplied in bulk, while CDCVF857DGGR is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements.

Q: Why is the PI6CVF857AE listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Texas Instruments CDCVF857 variants provide functionally equivalent alternatives with Active product status and ongoing manufacturer support.

Q: Are there any electrical differences between the substitute parts and the original?

A: The substitute parts operate at identical frequency, voltage, temperature, and signaling specifications. The Input:Output ratio differs (1:10 versus 2:11), but both maintain the same differential SSTL-2 interface and 220MHz maximum frequency required for DDR SDRAM DIMM clock buffering applications.

Q: What is the MSL rating difference, and does it affect compatibility?

A: MSL 1 (Unlimited) versus MSL 2 (1 Year) reflects moisture sensitivity classification. This does not impact electrical or mechanical compatibility. MSL rating affects storage and handling procedures but not functional performance in the application.

Q: Are all parts ROHS3 compliant?

A: Yes. The PI6CVF857AE and both CDCVF857 variants are ROHS3 compliant, meeting environmental and regulatory requirements.

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