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RTL8370N-VB-CG

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RTL8370N-VB-CG

Part NumberRTL8370N-VB-CG
ManufacturerRealtek Semiconductor Corp.
CategoryIntegrated Circuits (ICs) > Interface – Network Switches
DescriptionHighly integrated 8-port 10/100/1000M Gigabit Ethernet switch controller with embedded PHYs and advanced layer 2 management features, optimized for low-power consumer routers and smart SOHO switches.
Stock StatusIn Stock
OriginOriginal Factory

Product Overview

The RTL8370N-VB-CG is a single-chip 8-port Gigabit switch IC from Realtek for SOHO & small industrial network devices. It integrates eight 10/100/1000BASE-T PHYs with full wire-speed non-blocking switching fabric, supporting 4K MAC addresses, IEEE 802.1Q VLAN, IGMP snooping and multi-level QoS. Housed in LQFP-128-EP lead-free package with thermal pad, it adopts Green Ethernet power-saving tech to lower standby power for routers, smart switches and NVR equipment.

Core Advantages

8-Port Non-Blocking Gigabit Architecture

Integrates 8 complete 10/100/1000M PHY blocks inside one single chip, achieving a high-bandwidth non-blocking switch fabric that handles simultaneous full-duplex wire-speed data flows without congestion.

Advanced Green Ethernet Technology

Natively features IEEE 802.3az Energy Efficient Ethernet (EEE) standards along with dynamic cable length power adjustments, dropping operational power consumption during low network traffic periods.

Rich Layer 2 Management Features

Equipped with native hardware engines supporting 4K MAC address entries, broadcast storm control, port-mirroring, 802.1Q VLAN slicing, and strict/WRR QoS queues to safely manage enterprise-level home networks.

Optimized Integration and Minimal BOM Costs

Consolidates memory lookup tables, termination components, and physical layers, drastically diminishing the physical count of external passive components and allowing for compact, low-cost PCB layering.

Key Specifications

BrandRealtek
Device Type8-Port Gigabit Ethernet Switch Controller with Integrated PHY
RoHS StatusRoHS Compliant / Lead-Free / Halogen-Free Materials Standard
EDA/CAD Model3D CAD Step Models, Schematic Symbols, and Footprint files available upon request
Warranty1-Year Standard Quality Warranty
Package / CaseLQFP-128-EP (14mm × 20mm)
Mounting TypeSurface Mount Technology (SMD/SMT)
Surface Marking / SilkscreenRTL8370N Marking
MAC InterfaceGMII / MII
Total Network Ports8 Integrated 10/100/1000M Copper PHY Ports, with external MII management interface
Ethernet Transmission Rate10Mbps / 100Mbps / 1Gbps (10BASE-T / 100BASE-TX / 1000BASE-T)
MAC Address Capacity4K Table Space Entries with Auto-Learning and Aging Filters
Jumbo Frame SupportUp to 9KB Jumbo Frame Transmission Support
VLAN ArchitectureIEEE 802.1Q Tagged VLAN / Port-Based VLAN Matrices
Quality of Service (QoS)4 Priority Queues per Port (SP / WRR Arbitration Control)
Supply Rail Requirements1.0V Digital Core / 3.3V Analog & PHY / 1.8V / 3.3V I/O Rails
Operating Temperature Range0°C to +70°C (Commercial Performance Operating Envelope)
Standard Reel Packaging3000 Pieces per Tape & Reel

Typical Applications

  • 8-Port Unmanaged/Smart-Managed Gigabit Desktop Switching Hubs
  • SOHO Home Network Routers, Wireless Access Points, and High-Speed Broadband Gateways
  • Network Attached Storage (NAS) Enclosures and High-Definition IP Surveillance NVR Hubs
  • Industrial Control Machine Interfacing and Smart Building IoT Communication Nodes
  • Set-Top Boxes (STB), Smart TVs, and Multi-Room Residential Media Infrastructure Distribution Blocks

Order & Shipping Info

Minimum Order Quantity (MOQ)1 Piece
Shipping TimeShipped within 1-2 business days
Delivery Time3-7 working days worldwide
Shipping MethodsDHL, UPS, FedEx, EMS
Payment MethodsT/T (Bank Transfer), PayPal, Credit Card, Western Union

Technical Support

For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.

Frequently Asked Questions

Q1: Is your currently listed stock of the RTL8370N-VB-CG controller 100% genuine and original?

A: Yes, we guarantee that all RTL8370N-VB-CG integrated circuits in our stock are 100% brand-new, factory-original components directly from Realtek Semiconductor. Every production batch undergoes traceability quality audits and is shipped inside secure anti-static ESD tray or tape-and-reel layouts.

Q2: What does the “-VB” suffix signify in the RTL8370N-VB-CG part numbering sequence?

A: The “-VB” suffix identifies the specific version hardware silicon revision tier manufactured by Realtek. This layout revision features optimized PHY transceiver signal accuracy and enhanced power management loop performance relative to the older legacy versions.

Q3: Does the RTL8370N-VB-CG require an external CPU or processor to control basic switching operations?

A: No. For unmanaged switch layouts, the RTL8370N-VB-CG can operate completely standalone by reading hardware configuration pins or an optional external EEPROM memory component during bootup. For smart managed switch applications, it can interface with an external microcontroller or CPU via SMI or I2C management lines.

Q4: How can our network design group get the official reference layout schematics, SDK driver libraries, or volume quotes?

A: Please complete the Quick Inquiry web form found on this presentation profile page. Our technical engineering division will process your query data and forward the available asset documentation packages within 24 hours.

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