PI6CV857BAE Equivalent & Substitute Parts

Part Overview

The PI6CV857BAE is a Memory DDR SDRAM DIMM Clock Buffer/Driver IC manufactured by Diodes Incorporated, designed for 200MHz clock distribution in DDR memory applications. This part operates with SSTL-2 differential signaling and provides 1:10 input-to-output ratio multiplication across a single circuit. The product is currently obsolete, making equivalent substitute parts necessary for system redesigns, legacy system maintenance, and new production alternatives.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI6CV857BAE
Manufacturer	Diodes Incorporated
Category	Clock/Timing
Product Status	Obsolete
Main Purpose	Memory, DDR, SDRAM DIMM
Frequency - Max	200MHz
Input/Output Signaling	SSTL-2 Differential
Number of Circuits	1
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

Substitute Part Grouping Explanation

Substitute parts for the PI6CV857BAE are selected based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Package / Case: 48-TFSOP (0.240", 6.10mm Width) — physical and pin compatibility
Voltage - Supply: 2.3V ~ 2.7V — power supply compatibility
Operating Temperature: -40°C ~ 85°C — thermal operating range
Input/Output Signaling: SSTL-2 Differential — signal integrity and interface compatibility
Mounting Type: Surface Mount — assembly process compatibility

Secondary Functional Criteria:

Frequency capability at or above 200MHz
Single circuit configuration for DDR clock distribution
PLL or clock driver functionality for memory applications

The substitute parts listed below meet these electrical and mechanical parameters, enabling direct replacement in DDR memory clock distribution applications.

Parameter Comparison

Parameter	PI6CV857BAE (Main)	CDCVF857DGG	CDCVF857DGGR	74ALVC162244PAG
Manufacturer	Diodes Incorporated	Texas Instruments	Texas Instruments	IDT
Category	Clock/Timing	Clock/Timing	Clock/Timing	Logic
Product Status	Obsolete	Active	Active	Active
Frequency - Max	200MHz	220MHz	220MHz	—
Input/Output Signaling	SSTL-2 Differential	SSTL-2 Differential	SSTL-2 Differential	—
Number of Circuits	1	1	1	4
Voltage - Supply	2.3V ~ 2.7V	2.3V ~ 2.7V	2.3V ~ 2.7V	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	48-TFSOP	48-TFSOP	48-TFSOP	48-TFSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Packaging	—	Bulk	Tape & Reel (TR)	Bulk

Engineering Selection Recommendations

CDCVF857DGG and CDCVF857DGGR (Texas Instruments)

These parts are the primary substitutes for the PI6CV857BAE. Both maintain identical electrical specifications: SSTL-2 differential input/output signaling, 2.3V ~ 2.7V supply voltage, -40°C ~ 85°C operating temperature, and 48-TFSOP package. The CDCVF857 series operates at 220MHz maximum frequency, exceeding the PI6CV857BAE's 200MHz specification. Both are ROHS3 compliant and active products. The CDCVF857DGGR variant is supplied in Tape & Reel packaging with higher inventory availability (18,039 pcs), while CDCVF857DGG is supplied in bulk packaging (1,150 pcs).

74ALVC162244PAG (IDT, Integrated Device Technology Inc)

This part shares the 48-TFSOP package and -40°C ~ 85°C operating temperature range. However, it operates at 2.7V ~ 3.6V supply voltage, which does not overlap with the PI6CV857BAE's 2.3V ~ 2.7V specification. The 74ALVC162244PAG is a 16-bit buffer with 3-State output configuration, differing functionally from the PI6CV857BAE's clock driver architecture. This part is suitable only for applications where supply voltage can be adjusted to the 2.7V ~ 3.6V range and where buffer functionality replaces clock driver functionality.

Frequently Asked Questions (FAQ)

Q: Can CDCVF857DGG and CDCVF857DGGR be used interchangeably with PI6CV857BAE?

A: Yes. Both CDCVF857 variants meet all critical electrical and mechanical parameters: identical supply voltage range (2.3V ~ 2.7V), SSTL-2 differential signaling, single circuit configuration, 48-TFSOP package, and -40°C ~ 85°C operating temperature. The 220MHz maximum frequency exceeds the 200MHz requirement. The only difference is packaging format (bulk vs. Tape & Reel).

Q: What is the difference between CDCVF857DGG and CDCVF857DGGR?

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

Q: Is 74ALVC162244PAG a suitable substitute?

A: 74ALVC162244PAG shares the 48-TFSOP package and operating temperature range but operates at 2.7V ~ 3.6V supply voltage, which does not meet the PI6CV857BAE's 2.3V ~ 2.7V specification. Additionally, it functions as a 16-bit buffer rather than a clock driver. This part is not recommended as a direct substitute unless system design allows supply voltage adjustment to 2.7V ~ 3.6V and buffer functionality is acceptable.

Q: What are the key parameters that determine substitution compatibility?

A: The critical parameters are: 48-TFSOP package compatibility, 2.3V ~ 2.7V supply voltage range, SSTL-2 differential input/output signaling, -40°C ~ 85°C operating temperature, and single circuit configuration for DDR clock distribution. Frequency capability must meet or exceed 200MHz.

Q: Are all substitute parts RoHS compliant?

A: CDCVF857DGG and CDCVF857DGGR are ROHS3 compliant. RoHS compliance status for 74ALVC162244PAG is not provided in the available specifications.

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