PI2EQX5804CNJE Equivalent & Substitute Parts

Part Overview

The PI2EQX5804CNJE is an 8-channel PCIe ReDriver buffer manufactured by Diodes Incorporated, designed for signal conditioning in high-speed interface applications. This device features input equalization and output de-emphasis capabilities operating at 5Gbps across 8 channels in a 100-LBGA package. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design support and component sourcing.

Key Parameters

Parameter	PI2EQX5804CNJE
Manufacturer	Diodes Incorporated
Product Status	Obsolete
Type	Buffer, ReDriver
Applications	PCIe
Number of Channels	8
Data Rate (Max)	5Gbps
Input/Output	CML
Signal Conditioning	Input Equalization, Output De-Emphasis
Voltage - Supply	1.15V ~ 1.25V
Current - Supply	800mA
Operating Temperature	0°C ~ 70°C
Package / Case	100-LBGA (11x11)
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution for the PI2EQX5804CNJE is determined by the following critical parameters:

Channel Count: 8 channels (primary functional requirement)
Data Rate: 5Gbps minimum capability
Application Compatibility: PCIe interface support
Signal Conditioning: Input equalization and output de-emphasis
Input/Output Standard: CML signaling
Supply Voltage Range: Compatibility with system power delivery
Operating Temperature: System thermal environment requirements
Package Type: Physical form factor and thermal characteristics

The substitute parts identified are primarily 4-channel devices from Texas Instruments operating at higher data rates (6.4Gbps to 12.5Gbps) with enhanced capabilities. These parts maintain CML input/output standards and signal conditioning features but differ in channel count and package form factor. The DS125BR401SQ/NOPB represents the closest functional match with 8-channel capability at 12.5Gbps in a 54-WQFN package.

Parameter Comparison

Parameter	PI2EQX5804CNJE	DS125BR401SQ/NOPB	DS100BR410SQ/NOPB	DS64BR401SQE/NOPB	SN65LVPE504RUAR
Manufacturer	Diodes Inc.	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active	Active
Number of Channels	8	8	4	4	4
Data Rate (Max)	5Gbps	12.5Gbps	10.3Gbps	6.4Gbps	5Gbps
Applications	PCIe	PCIe	SATA	SAS, SATA	PCIe
Input/Output	CML	CML	CML	CML	CML
Signal Conditioning	Input Equalization, Output De-Emphasis	Input Equalization, Output De-Emphasis	Input Equalization, Output De-Emphasis	Input Equalization, Output De-Emphasis	Input Equalization, Output De-Emphasis
Voltage - Supply	1.15V ~ 1.25V	2.375V ~ 3.6V	2.375V ~ 2.625V	2.375V ~ 2.625V	3V ~ 3.6V
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	-10°C ~ 85°C	-40°C ~ 85°C
Package / Case	100-LBGA (11x11)	54-WQFN (10x5.5)	48-WQFN (7x7)	54-WQFN (10x5.5)	42-WQFN (4.6x9)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	2 (1 Year)	3 (168 Hours)	2 (1 Year)	2 (1 Year)

Engineering Selection Recommendations

Primary Substitute: DS125BR401SQ/NOPB

This part maintains 8-channel functionality with PCIe application support and active product status. It operates at 12.5Gbps, exceeding the original 5Gbps specification. The device is ROHS3 compliant with improved MSL rating (2 vs. 3). Supply voltage range (2.375V ~ 3.6V) differs from the original and requires power supply verification. Operating temperature range extends to -40°C ~ 85°C, providing broader environmental coverage.

Secondary Substitutes for 4-Channel Applications:

DS100BR410SQ/NOPB and DS100BR410SQE/NOPB: Active status, 10.3Gbps capability, SATA application focus. Suitable where channel reduction is acceptable.
DS64BR401SQE/NOPB: Active status, 6.4Gbps data rate closer to original specification, SAS/SATA applications.
SN65LVPE504RUAR: Matches original 5Gbps data rate, PCIe application, 4-channel configuration, active product status.

All substitute parts maintain CML input/output standards, input equalization, and output de-emphasis signal conditioning. All are ROHS3 compliant. Package form factors differ significantly, requiring PCB layout redesign.

Frequently Asked Questions (FAQ)

Q: Can DS125BR401SQ/NOPB directly replace PI2EQX5804CNJE?

A: Functionally, DS125BR401SQ/NOPB provides 8-channel PCIe ReDriver capability with superior data rate (12.5Gbps vs. 5Gbps) and active product status. However, supply voltage range differs (2.375V ~ 3.6V vs. 1.15V ~ 1.25V), and package form factor changes from 100-LBGA to 54-WQFN, requiring power supply and PCB redesign.

Q: Why are most substitutes 4-channel devices?

A: The PI2EQX5804CNJE is an 8-channel device from an obsolete product line. Current-generation ReDriver ICs from active manufacturers emphasize 4-channel configurations with higher data rates. The DS125BR401SQ/NOPB is the only identified substitute maintaining 8-channel count.

Q: What are the package implications?

A: The original 100-LBGA (11x11) package differs from all substitutes. DS125BR401SQ/NOPB uses 54-WQFN (10x5.5), reducing footprint size but requiring complete PCB layout revision. Thermal characteristics and trace routing differ substantially.

Q: Are all substitutes PCIe-rated?

A: DS125BR401SQ/NOPB and SN65LVPE504RUAR are PCIe-rated. DS100BR410 series and DS64BR401 series are rated for SATA and SAS applications, though they maintain compatible CML signaling and signal conditioning features.

Q: What compliance certifications apply?

A: All identified substitutes are ROHS3 compliant and REACH unaffected, matching the original part's regulatory status. MSL ratings vary: original is MSL 3 (168 Hours); most substitutes are MSL 2 (1 Year), providing improved moisture handling.

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