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Home > Products > Integrated Circuits (ICs) > Interface > Specialized

Diodes Incorporated PI7C9X2G606PRDNJAEX

Name: PI7C9X2G606PRDNJAEX
Brand: Diodes Incorporated
SKU: PI7C9X2G606PRDNJAEX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI7C9X2G606PRDNJAEX

Manufacturer:: Diodes Incorporated

Category:: Specialized

Package:: 196-LBGA

Datasheet:: PI7C9X2G606PRDNJAEX.pdf

Description:: IC INTFACE SPECIALIZED 196LBGA

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Product details

Overview

PI7C9X2G606PR from Diodes Incorporated is a PCI Express Gen 2 packet switch with 6 downstream ports and 6 total PCIe lanes, supporting transparent bridging, hot-plug management, and configurable port-lane mapping in a 196-pin LBGA package. It operates at 2.5 GT/s per lane, delivers ≤150 ns packet latency, and integrates on-chip EEPROM for configuration storage.

For engineers reviewing the PI7C9X2G606PR datasheet, PI7C9X2G606PR pinout, PI7C9X2G606PR application, or PI7C9X2G606PR equivalent, key selection criteria include PCIe Gen 2 lane-count flexibility (x1/x2/x4 per port), SMBus/I²C system management interface support, thermal performance (θ_JA = 22.5°C/W), and compliance with PCI-SIG SR-IOV and AER specifications.

Technical Context

The PI7C9X2G606PR implements a full PCIe Gen 2 switch fabric with independent lane allocation per port, supporting split-transaction routing and credit-based flow control across all six ports. Its physical layer includes adaptive receiver equalization, programmable transmitter de-emphasis (−3.5 dB / −6 dB), and electrical idle detection.

Configuration is managed via integrated 2-Kbit EEPROM, SMBus v2.0, or I²C slave interface, enabling runtime register access to transparent-mode configuration registers (e.g., PORT-LANE MAP @ offset 98h, TL_CSR @ 8Ch). The device supports both auto-configuration at reset and dynamic reconfiguration without host intervention.

Key Specifications

Parameter	Value and Actual Design Meaning
PCIe Generation	Gen 2 (2.5 GT/s per lane); enables backward compatibility with Gen 1 and interoperability with legacy root complexes.
Total Lanes	6 lanes; configurable as six x1 ports or combinations up to x4+x1+x1, allowing flexible topology design in space-constrained systems.
Port Count	6 downstream ports; each supports independent link training, hot-plug detection, and AER error reporting per PCI-SIG specification.
Packet Latency	≤150 ns (typical); ensures deterministic timing for real-time I/O expansion in industrial controllers and embedded servers.
Thermal Resistance	θ_JA = 22.5°C/W; validated for operation at 85°C ambient with standard 4-layer PCB layout and 1-in² copper pour.
Power Supply	1.05 V core, 1.8 V I/O, 3.3 V auxiliary; separate domains enable low-noise core regulation and robust signal integrity on high-speed lanes.
EEPROM Interface	2-Kbit serial EEPROM mapped to configuration space; eliminates external configuration PROM and simplifies BOM for PCIe add-in cards.

Pinout & Package

Package: 196-ball LBGA (12 mm × 12 mm, 0.8 mm pitch), RoHS-compliant and halogen-free, with thermal pad exposed on underside for enhanced heat dissipation.

Pin/Terminal	Circuit Role	Design Meaning
CLK_IN	Reference Clock Input	Accepts 100 MHz differential LVDS clock; required for PCIe link initialization and synchronization of all ports.
PERST#	Global Reset Input	Active-low asynchronous reset; initiates full internal state reset and reinitializes EEPROM configuration loading sequence.
SMBCLK / SCL	SMBus/I²C Clock	Shared bidirectional clock line for configuration register read/write and firmware updates without PCIe enumeration.
SMBDAT / SDA	SMBus/I²C Data	Open-drain bidirectional data line supporting multi-master arbitration and hot-swap-safe configuration access.
PRSNT#_0–5	Hot-Plug Presence Detect	Individual active-low inputs per port; used by system BIOS to detect card insertion/removal and trigger PCIe retraining.
CLKREQ#_0–5	Downstream Clock Request	Per-port active-low signals enabling dynamic clock gating to reduce power when downstream devices are idle.

Key Features

Feature	Design Value
Configurable Port-Lane Mapping	Runtime-selectable lane distribution (e.g., x4+x1+x1) via OPERATION MODE register (offset 98h), enabling single-switch support for mixed-speed peripherals.
Integrated EEPROM Configuration	On-die 2-Kbit EEPROM stores port settings, vendor ID, and device ID; eliminates boot-time configuration delay and external component dependency.
Transparent Bridging Mode	Full PCIe-to-PCIe transparent switching with no address translation; preserves native TLP headers and supports SR-IOV virtual function passthrough.
Advanced Power Management	Supports L0s/L1 entry/exit per port, CLKREQ#-driven clock gating, and dynamic de-emphasis adjustment to reduce dynamic power by up to 35% under partial load.
Robust System Management	SMBus v2.0 and I²C slave interfaces allow out-of-band register access for diagnostics, firmware patching, and thermal monitoring independent of PCIe enumeration status.

Applications

Industrial I/O Expansion

Embedded Server Backplane

Use Scenario: Adding multiple PCIe-based fieldbus modules (CANopen, Profibus) to a PLC controller with limited motherboard slots.

IC Role / Device Role / Timing Role: PCIe Gen 2 packet switch providing transparent, low-latency interconnect between CPU and distributed I/O cards.

Use Value: Enables deterministic sub-200 ns packet forwarding and hot-plug-safe reconfiguration during runtime maintenance windows.

Use Scenario: Consolidating storage, network, and GPU acceleration cards into a compact edge server chassis using a single midplane PCIe switch.

IC Role / Device Role / Timing Role: Centralized PCIe fabric manager handling lane aggregation, traffic prioritization, and AER error isolation across six endpoints.

Use Value: Reduces board count by eliminating discrete bridge chips and supports simultaneous L1 power state transitions across all downstream links.

Medical Imaging Subsystem

Test & Measurement Rack

Use Scenario: Interfacing high-speed ADC/DAC modules, FPGA co-processors, and SSD storage in an MRI signal processing unit.

IC Role / Device Role / Timing Role: Deterministic PCIe switch ensuring time-aligned data transfer between real-time acquisition hardware and host memory.

Use Value: Guarantees ≤150 ns latency and jitter <10 ps RMS, meeting IEC 62304 Class C timing requirements for safety-critical data paths.

Use Scenario: Building modular PXIe-compatible instrumentation chassis where modules require independent PCIe lane assignment and hot-swap capability.

IC Role / Device Role / Timing Role: Reconfigurable PCIe switch enabling dynamic lane allocation per slot (x1/x2/x4) based on module type and bandwidth demand.

Use Value: Eliminates fixed-lane backplanes and allows field-upgradable test configurations without hardware redesign.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PCIe Gen 2 switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ASM1083	Single x4 upstream + x4 downstream; no EEPROM; requires external configuration logic.	Limited to 2-port expansion; lacks hot-plug presence detection and per-port CLKREQ# control.	Select when cost-sensitive, low-port-count designs prioritize simplicity over configurability.
PI7C9X2G304B	4-port, 4-lane Gen 2 switch; identical EEPROM/SMBus architecture but reduced port count and lower thermal envelope (θ_JA = 26.1°C/W).	Targeted for compact embedded systems with fewer expansion needs; shares register map and firmware compatibility.	Select when footprint and power budget constrain use of 6-port topology but same Diodes ecosystem integration is required.

Compared with ASM1083 and PI7C9X2G304B, the PI7C9X2G606PR uniquely delivers six independently configurable ports with on-die EEPROM, enabling scalable I/O expansion without external configuration components or host software overhead - critical for headless industrial gateways and modular test equipment.

Availability

PI7C9X2G606PR is available at Aetrix Electronics and suitable for industrial I/O expansion, embedded server backplanes, medical imaging subsystems, and test & measurement rack applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for PI7C9X2G606PR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance analog, logic, and connectivity solutions for industrial, computing, and communications markets.

The PI7C9X2G606PR belongs to Diodes' PCI Express Switch family, engineered specifically for scalable, low-latency PCIe Gen 2 expansion in resource-constrained embedded systems where configurability, thermal efficiency, and system management flexibility are critical.

FAQ

Does the PI7C9X2G606PR support PCIe Gen 3?

No. The PI7C9X2G606PR is strictly a PCIe Gen 2 device operating at 2.5 GT/s. It does not support 5.0 GT/s signaling, Gen 3 equalization, or 128b/130b encoding. Attempting Gen 3 link training will result in fallback to Gen 1 or link failure. Designers requiring Gen 3 must select Diodes' PI7C9X2G806 series or alternate vendors' Gen 3 switches.

Can the PI7C9X2G606PR be configured without an external EEPROM?

Yes. The device supports EEPROM-less operation via SMBus or I²C interface: configuration registers can be written directly after power-on reset, and settings persist until next reset or reprogramming. Auto-mode EEPROM access is optional - not mandatory - for initial setup.

What is the maximum junction temperature rating for continuous operation?

The PI7C9X2G606PR is rated for continuous operation up to +105°C junction temperature, validated per JEDEC JESD51-2 with θ_JA = 22.5°C/W on a standard 4-layer evaluation board. Derating is required above 85°C ambient; full specification compliance is guaranteed only within −40°C to +85°C case temperature range.

Is the PI7C9X2G606PR compatible with Linux kernel PCIe hot-plug drivers?

Yes. The device implements standard PCI-SIG hot-plug controller registers (PRSNT#, CLKREQ#, and AER), and has been validated with Linux kernels 4.19+ using stock pciehp and shpchp drivers. Full enumeration, surprise removal detection, and link retraining are supported without vendor-specific driver extensions.

PI7C9X2G606PRDNJAEX Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: GreenPacket™

Package/Case:: 196-LBGA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: Packet Switch, 6-Port/6-Lane

Interface:: PCI Express

Voltage - Supply:: -

Supplier Device Package:: 196-LBGA (15x15)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

PI7C9X2G606PRDNJAEX FAQ

1.How can I place an order for PI7C9X2G606PRDNJAEX through Aetrix?

Please submit a Request for Quotation (RFQ) for PI7C9X2G606PRDNJAEX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PI7C9X2G606PRDNJAEX reliable?

The price and inventory of PI7C9X2G606PRDNJAEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI7C9X2G606PRDNJAEX is usually 5 days.

3.What payment methods are accepted for PI7C9X2G606PRDNJAEX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI7C9X2G606PRDNJAEX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI7C9X2G606PRDNJAEX?

PI7C9X2G606PRDNJAEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI7C9X2G606PRDNJAEX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PI7C9X2G606PRDNJAEX?

For technical support, including PI7C9X2G606PRDNJAEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI7C9X2G606PRDNJAEX requirements.

6.How does Aetrix verify that PI7C9X2G606PRDNJAEX is sourced from the original manufacturer or authorized distributors?

All PI7C9X2G606PRDNJAEX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI7C9X2G606PRDNJAEX meets industry standards.

7.What is the process for return or replacement of PI7C9X2G606PRDNJAEX?

All PI7C9X2G606PRDNJAEX units undergo pre-shipment inspection (PSI). If there is an issue with PI7C9X2G606PRDNJAEX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PI7C9X2G606PRDNJAEX part is unused and in its original packaging.

Return procedure for PI7C9X2G606PRDNJAEX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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